question
The band of collagen fibers that laterally braces the knee is the
a. Tensor fasciae latae
b. Piriformis
c. Iliotibial tract
d. Linea alba
e. Linea aspera
a. Tensor fasciae latae
b. Piriformis
c. Iliotibial tract
d. Linea alba
e. Linea aspera
answer
c
question
Which of these muscles is a member of the quadriceps group?
a. Vastus lateralis
b. Vastus medialis
c. Vastus intermedius
d. Rectus femoris
e. All of the above
a. Vastus lateralis
b. Vastus medialis
c. Vastus intermedius
d. Rectus femoris
e. All of the above
answer
e
question
The ___ nervous system controls the skeletal muscles
a. Sympathetic
b. Autonomic
c. Parasympathetic
d. Somatic
e. Afferent
a. Sympathetic
b. Autonomic
c. Parasympathetic
d. Somatic
e. Afferent
answer
d
question
The muscle that elevates the tongue is the ___
b. Hypoglossus
c. Styloglossus
d. Palatoglossus
e. Genioglossus
b. Hypoglossus
c. Styloglossus
d. Palatoglossus
e. Genioglossus
answer
d
question
Which of the following is not primarily a muscle of facial expression?
a. Mentalis
b. Risorius
c. Depressor labii
d. Masseter
e. Buccinators
a. Mentalis
b. Risorius
c. Depressor labii
d. Masseter
e. Buccinators
answer
d
question
The type of muscle whose functional characteristics most closely resemble those of its muscle fibers is the ___ muscle.
a. Pennate
b. Convergent
c. Parallel
d. Divergent
e. Circular
a. Pennate
b. Convergent
c. Parallel
d. Divergent
e. Circular
answer
c
question
During the Cori cycle, in the liver ____
a. Glucose is produced from lactic acid
b. Lactic acid is shuffled into muscle cells
c. Glucose is released from glycogen
d. Lactic acid is produced from pyruvic acid
e. Lactic acid is produced from glucose
a. Glucose is produced from lactic acid
b. Lactic acid is shuffled into muscle cells
c. Glucose is released from glycogen
d. Lactic acid is produced from pyruvic acid
e. Lactic acid is produced from glucose
answer
a
question
Which eye muscle sends its tendon of origin through a pulley or trochlea before inserting on the globe?
a. Inferior rectus
b. Superior oblique
c. Inferior oblique
d. Superior rectus
e. Lateral rectus
a. Inferior rectus
b. Superior oblique
c. Inferior oblique
d. Superior rectus
e. Lateral rectus
answer
b
question
The muscle that extends the arm while doing push-ups is this ____
a. Pectorals
b. Brachialis
c. Deltoid
d. Triceps
e. Biceps
a. Pectorals
b. Brachialis
c. Deltoid
d. Triceps
e. Biceps
answer
d
question
The muscle that adducts and rotates the scapula laterally is the ___
a. Serratus anterior
b. Pectoralis minor
c. Levator scapulae
d. Subclavius
e. Rhomboid
a. Serratus anterior
b. Pectoralis minor
c. Levator scapulae
d. Subclavius
e. Rhomboid
answer
e
question
The largest and most numerous of the glial cells in the central nervous system are the ____.
a. Astrocytes
b. Oligodendrocytes
c. Ependymal cells
d. Microglia
e. Satellite cells
a. Astrocytes
b. Oligodendrocytes
c. Ependymal cells
d. Microglia
e. Satellite cells
answer
a
question
The outermost connective tissue covering the nerves is the ____
a. Epimysium
b. Endomysium
c. Epineurium
d. Perineurium
e. Endoneurium
a. Epimysium
b. Endomysium
c. Epineurium
d. Perineurium
e. Endoneurium
answer
c
question
Blood vessels that supply the spinal cord run along the surface of the ____
a. Epidural space
b. Dura mater
c. Subdural space
d. Subarachnoid space
e. Pia mater
a. Epidural space
b. Dura mater
c. Subdural space
d. Subarachnoid space
e. Pia mater
answer
e
question
The layer of connective tissue that surrounds a fascicle within a peripheral nerve is the ____
a. Endoneurium
b. Epineurium
c. Endosteum
d. Perineurium
e. Epimysium
a. Endoneurium
b. Epineurium
c. Endosteum
d. Perineurium
e. Epimysium
answer
d
question
The most common lever systems in the body are those that have the applied force between the fulcrum and the load/resistance. These are called the _____.
a. First-class
b. Second-class
c. Third-class
d. Fourth-class
e. Fifth-class
a. First-class
b. Second-class
c. Third-class
d. Fourth-class
e. Fifth-class
answer
c
question
Deteriorating changes in the distal segment of an axon is called ____ degeneration.
a. Peripheral
b. Neural
c. Wallerian
d. Conduction
e. Central
a. Peripheral
b. Neural
c. Wallerian
d. Conduction
e. Central
answer
c
question
Which of the following is not a function of smooth muscle tissue?
a. Forcing urine out of the urinary tract
b. Altering the diameter of the respiratory passageways
c. Moving food materials along the digestive tract
d. Forcing blood from the heart into the major arteries
e. Elevating hairs on the arms
a. Forcing urine out of the urinary tract
b. Altering the diameter of the respiratory passageways
c. Moving food materials along the digestive tract
d. Forcing blood from the heart into the major arteries
e. Elevating hairs on the arms
answer
d
question
A muscle that flexes the spinal column is the ____
a. Longissmus
b. Iliocostals
c. Spinalis
d. Rectus abdomonis
e. Sacrospinalis
a. Longissmus
b. Iliocostals
c. Spinalis
d. Rectus abdomonis
e. Sacrospinalis
answer
d
question
Which of the following is not a possible drug effect on synaptic function?
a. Prevent neurotransmitter inactivation
b. Interfere with neurotransmitter re-uptake
c. Interfere with neurotransmitter synthesis
d. Block neurotransmitter binding to receptos
e. Change the type of receptor found in the postsynaptic membrane
a. Prevent neurotransmitter inactivation
b. Interfere with neurotransmitter re-uptake
c. Interfere with neurotransmitter synthesis
d. Block neurotransmitter binding to receptos
e. Change the type of receptor found in the postsynaptic membrane
answer
e
question
Neurons that have one axon and one dendrite with the soma in between are called ____.
a. Tripolar
b. Anaxonic
c. Bipolar
d. Unipolar
e. Multipolar
a. Tripolar
b. Anaxonic
c. Bipolar
d. Unipolar
e. Multipolar
answer
c
question
Opening of sodium channels in the axon membrane causes ____.
a. Depolarization
b. Repolarization
c. Hyperpolarization
d. Increased positive charge inside the membrane
e. Both A and D
a. Depolarization
b. Repolarization
c. Hyperpolarization
d. Increased positive charge inside the membrane
e. Both A and D
answer
e
question
Voltage-gated channels are present ____.
a. On the surface of the dendrites
b. In the membrane that covers axons
c. Along the perikaryon of neurons
d. On the soma of neurons
e. At the motor end plate
a. On the surface of the dendrites
b. In the membrane that covers axons
c. Along the perikaryon of neurons
d. On the soma of neurons
e. At the motor end plate
answer
b
question
The obturator nerve is distributed to the ____.
a. Skin over buttocks
b. Biceps femoris
c. Extensors of the hip
d. Skin over the perineum
e. Adductors of the hip
a. Skin over buttocks
b. Biceps femoris
c. Extensors of the hip
d. Skin over the perineum
e. Adductors of the hip
answer
e
question
In which plexus does the ulnar nerve arise?
a. Sacral
b. Cranial
c. Lumbar
d. Brachial
e. Cervical
a. Sacral
b. Cranial
c. Lumbar
d. Brachial
e. Cervical
answer
d
question
When acetylcholine binds to receptors at the motor end plate, the end plate membrane becomes _____.
a. Less permeable to potassium ions
b. More permeable to sodium ions
c. Less permeable to sodium ions
d. More permeable to calcium ions
e. Repolarized
a. Less permeable to potassium ions
b. More permeable to sodium ions
c. Less permeable to sodium ions
d. More permeable to calcium ions
e. Repolarized
answer
b
question
How would the loss of acetylcholinerase from the motor end place affect skeletal muscle?
a. It would have little effect on skeletal muscles
b. It would cause flaccid paralysis (muscles are relaxed and unable to contract)
c. It would make the muscles less excitable
d. It would produce muscle weakness
e. It would cause spastic paralysis (muscles are contracted and unable to relax)
a. It would have little effect on skeletal muscles
b. It would cause flaccid paralysis (muscles are relaxed and unable to contract)
c. It would make the muscles less excitable
d. It would produce muscle weakness
e. It would cause spastic paralysis (muscles are contracted and unable to relax)
answer
e
question
In response to action potentials arriving along the transverse tubules, the sarcoplasmic reticulum releases ____.
a. Acetylcholine
b. Hydrogen ions
c. Calcium ions
d. Potassium ions
e. Sodium ions
a. Acetylcholine
b. Hydrogen ions
c. Calcium ions
d. Potassium ions
e. Sodium ions
answer
c
question
How would a drug that blocks acetylocholine receptors at the motor end plate affect skeletal muscle?
a. It would cause spastic paralysis (muscles are contracted and unable to relax)
b. It would produce uncontrolled muscle spasms
c. It would cause flaccid paralysis (muscles are relaxed and unable to contract)
d. It would make the muscles more excitable
e. It would have little effect on skeletal muscle
a. It would cause spastic paralysis (muscles are contracted and unable to relax)
b. It would produce uncontrolled muscle spasms
c. It would cause flaccid paralysis (muscles are relaxed and unable to contract)
d. It would make the muscles more excitable
e. It would have little effect on skeletal muscle
answer
c
question
Adrenergic synapses release the neurotransmitter ____.
a. GABA
b. Norepinephrine
c. Serotonin
d. Dopamine
e. Acetylcholine
a. GABA
b. Norepinephrine
c. Serotonin
d. Dopamine
e. Acetylcholine
answer
b
question
The region of the sarcomere containing the thick filaments is the ____.
a. A band
b. J band
c. I band
d. M line
e. Z line
a. A band
b. J band
c. I band
d. M line
e. Z line
answer
a
question
Muscles with fibers that run perpendicular to the long axis of the body are called _____.
a. Oblique
b. Medialis
c. Rectus
d. Transversus
e. Lateralis
a. Oblique
b. Medialis
c. Rectus
d. Transversus
e. Lateralis
answer
d
question
Muscles located entirely within an organ are called ____.
a. Externus
b. Intrinsic
c. Extrinsic
d. Internus
e. Profundus
a. Externus
b. Intrinsic
c. Extrinsic
d. Internus
e. Profundus
answer
b
question
The ____ covers the anterior surface of the neck
a. Orbicularis oris
b. Platysma
c. Occipitofrontalis
d. Buccinators
e. Epicranium
a. Orbicularis oris
b. Platysma
c. Occipitofrontalis
d. Buccinators
e. Epicranium
answer
b
question
A muscle whose name ends in the suffix-glossus would be found within or attached to the ____.
a. Jaw
b. Cheek
c. Tongue
d. Lips
e. Chin
a. Jaw
b. Cheek
c. Tongue
d. Lips
e. Chin
answer
c
question
Branches that may occur along an axon are called ____.
a. Telodendria
b. Synapses
c. Hillocks
d. Synaptic knobs
e. Collaterals
a. Telodendria
b. Synapses
c. Hillocks
d. Synaptic knobs
e. Collaterals
answer
e
question
The axon is connected to the soma at the ____.
a. Synaptic knobs
b. Axon hillock
c. Collaterals
d. Synapse
e. Telodendria
a. Synaptic knobs
b. Axon hillock
c. Collaterals
d. Synapse
e. Telodendria
answer
b
question
If a second stimulus arrives before the relaxation phase has ended, a second, more powerful contraction occurs. This is called ____.
a. Recruitment
b. Wave Summation
c. Incomplete tetanus
d. Treppe
e. Complete tetanus
a. Recruitment
b. Wave Summation
c. Incomplete tetanus
d. Treppe
e. Complete tetanus
answer
b
question
Large-diameter, densely packed myofibrils, large glycogen reserves, and few mitochondria are characteristics of ____.
a. Slow fibers
b. Intermediate fibers
c. Fast fibers
d. Fatty muscles
e. Red muscles
a. Slow fibers
b. Intermediate fibers
c. Fast fibers
d. Fatty muscles
e. Red muscles
answer
c
question
The increase in muscle tension that is produced by increasing the number of active motor units is called ____.
a. Treppe
b. Recruitment
c. Incomplete tentanus
d. Complete tetanus
e. Wave summation
a. Treppe
b. Recruitment
c. Incomplete tentanus
d. Complete tetanus
e. Wave summation
answer
b
question
When a muscle is stimulated repeatedly at a high rate, the amount of tension gradually increases to a steady maximum tension called ____.
a. Wave summation
b. A twitch
c. Incomplete tetanus
d. Complete tetanus
e. Recruitment
a. Wave summation
b. A twitch
c. Incomplete tetanus
d. Complete tetanus
e. Recruitment
answer
d
question
The skeletal muscle complex known as the triad consists of ____.
a. Filaments, myofibrils, and sarcomeres
b. Actin, myosin, and sarcomeres
c. Actin, myosin, and filaments
d. A bands, H bands, and I bands
e. A transverse tubule and two terminal cisternae
a. Filaments, myofibrils, and sarcomeres
b. Actin, myosin, and sarcomeres
c. Actin, myosin, and filaments
d. A bands, H bands, and I bands
e. A transverse tubule and two terminal cisternae
answer
e
question
The dense layer of connective tissue that surrounds an entire skeletal muscle is the ____.
a. Tendon
b. Fascicle
c. Perimysium
d. Epimysium
e. Endomysium
a. Tendon
b. Fascicle
c. Perimysium
d. Epimysium
e. Endomysium
answer
d
question
The flexor reflex _____.
l neurons
b. Is an example of a monosynaptic reflex
c. Prevents a muscle from generating damaging tension
d. Moves a limb away from a painful stimulus
e. Prevents a muscle from overstretching
l neurons
b. Is an example of a monosynaptic reflex
c. Prevents a muscle from generating damaging tension
d. Moves a limb away from a painful stimulus
e. Prevents a muscle from overstretching
answer
d
question
All of the following are true of polysynaptic reflexes, except that they ____.
a. Are intersegmental in distribution
b. Have reverberating circuits that prolong the reflexive motor response
c. Involved pools of interneurons
d. Involve reciprocal innervation
e. Are arranged according to dermatomes
a. Are intersegmental in distribution
b. Have reverberating circuits that prolong the reflexive motor response
c. Involved pools of interneurons
d. Involve reciprocal innervation
e. Are arranged according to dermatomes
answer
e
question
The ____ innervates the ventrolateral body surface, structures in the body wall, and the limbs.
a. Gray rami communicantes
b. Dorsal ramus
c. White rami communicantes
d. Ventral ramus
e. Dermatomes
a. Gray rami communicantes
b. Dorsal ramus
c. White rami communicantes
d. Ventral ramus
e. Dermatomes
answer
d
question
The postganglionic fibers that connect an autonomic ganglion in the thoracic or lumbar region with the spinal nerve are called ____.
a. Dermatomes
b. Dorsal ramus
c. White rami
d. Ventral ramus
e. Gray rami
a. Dermatomes
b. Dorsal ramus
c. White rami
d. Ventral ramus
e. Gray rami
answer
e
question
Mary is in an automobile accident and suffers a spinal cord injury. She has lost feelings in her lower body. Her doctor tells her that swelling is compressing a portion of her spinal cord. Which part of her cord is likely to be compressed?
a. Anterior gray horns
b. Anterior white commissures
c. The anterior gray commissures
d. Descending tracts
e. Ascending tracts
a. Anterior gray horns
b. Anterior white commissures
c. The anterior gray commissures
d. Descending tracts
e. Ascending tracts
answer
e
question
Nerve tracts or fasciculi make up the _____.
a. Central canal
b. Posterior gray horns
c. Gray commissures
d. Anterior white columns
e. Both B and C
a. Central canal
b. Posterior gray horns
c. Gray commissures
d. Anterior white columns
e. Both B and C
answer
d
question
The ventral root of a spinal nerve contains ____.
a. Axons of the sensory neurons
b. Interneurons
c. Cell bodies of motor neurons
d. Axons of motor neurons
e. Cell bodies of sensory neurons
a. Axons of the sensory neurons
b. Interneurons
c. Cell bodies of motor neurons
d. Axons of motor neurons
e. Cell bodies of sensory neurons
answer
d
question
In which of the following would the rate of impulse conduction be the greatest?
a. A myelinated fiber of the 10- diameter
b. A nonmyelinated fiber of the 20- diameter
c. A myelinated fiber of the 1- diameter
d. A nonmyelinated fiber of the 10- diameter
e. The same in all because of the all-or-none principle
a. A myelinated fiber of the 10- diameter
b. A nonmyelinated fiber of the 20- diameter
c. A myelinated fiber of the 1- diameter
d. A nonmyelinated fiber of the 10- diameter
e. The same in all because of the all-or-none principle
answer
a
question
Which of the following is not a function of the nervous system?
a. sense the internal and external environments
b. integrate sensory information
c. coordinate voluntary and involuntary activities
d. direct long-term functions, such as growth
e. control peripheral effectors
a. sense the internal and external environments
b. integrate sensory information
c. coordinate voluntary and involuntary activities
d. direct long-term functions, such as growth
e. control peripheral effectors
answer
d
question
The following are the main steps in the generation of an action potential.1. Sodium channels are inactivated.2. Voltage-gated potassium channels open and potassium moves out of the cell, initiating repolarization.3. Sodium channels regain their normal properties.4. A graded depolarization brings an area of an excitable membrane to threshold.5. A temporary hyperpolarization occurs.6. Sodium channel activation occurs.7. Sodium ions enter the cell and depolarization occurs.The proper sequence of these events is:
a. 4, 6, 7, 3, 2, 5, 1
b. 4, 6, 7, 1, 2, 3, 5
c. 6, 7, 4, 1, 2, 3, 5
d. 2, 4, 6, 7, 1, 3, 5
e. 4, 2, 5, 6, 7, 3, 1
a. 4, 6, 7, 3, 2, 5, 1
b. 4, 6, 7, 1, 2, 3, 5
c. 6, 7, 4, 1, 2, 3, 5
d. 2, 4, 6, 7, 1, 3, 5
e. 4, 2, 5, 6, 7, 3, 1
answer
b
question
Which of the following does not influence the time necessary for a nerve impulse to be transmitted?
a. length of the axon
b. presence or absence of a myelin sheath
c. diameter of the axon
d. presence or absence of nodes
e. whether or not the impulse begins in the CNS
a. length of the axon
b. presence or absence of a myelin sheath
c. diameter of the axon
d. presence or absence of nodes
e. whether or not the impulse begins in the CNS
answer
e
question
At the normal resting potential of a typical neuron, its Na-K ion exchange pump transports ________.
a. 1 sodium ion into the cell for 2 potassium ions out of the cell
b. 2 sodium ions into the cell for 1 potassium ion out of the cell
c. 3 sodium ions into the cell for 1 potassium ion out of the cell
d. 3 sodium ions out of the cell for 2 potassium ions into the cell
e. 3 sodium ions into the cell for 2 potassium ions out of the cell
a. 1 sodium ion into the cell for 2 potassium ions out of the cell
b. 2 sodium ions into the cell for 1 potassium ion out of the cell
c. 3 sodium ions into the cell for 1 potassium ion out of the cell
d. 3 sodium ions out of the cell for 2 potassium ions into the cell
e. 3 sodium ions into the cell for 2 potassium ions out of the cell
answer
d
question
These sensory neurons monitor the digestive, respiratory, cardiovascular, urinary and reproductive systems.
a. interoceptors
b. exteroceptors
c. proprioceptors
d. motor neurons
e. interneurons
a. interoceptors
b. exteroceptors
c. proprioceptors
d. motor neurons
e. interneurons
answer
a
question
Which of the following are a type of glial cell found in the peripheral nervous system?
a. astrocytes
b. satellite cells
c. oligodendrocytes
d. microglia
e. ependymal cells
a. astrocytes
b. satellite cells
c. oligodendrocytes
d. microglia
e. ependymal cells
answer
b
question
The most abundant class of neuron in the central nervous system is ________.
a. anaxonic
b. bipolar
c. multipolar
d. pseudopolar
e. unipolar
a. anaxonic
b. bipolar
c. multipolar
d. pseudopolar
e. unipolar
answer
c
question
The cytoplasm that surrounds the nucleus of a neuron is called the ________.
a. protoplasm
b. nucleoplasm
c. sarcoplasm
d. neuroplasm
e. perikaryon
a. protoplasm
b. nucleoplasm
c. sarcoplasm
d. neuroplasm
e. perikaryon
answer
e
question
Spinal nerves are ________.
a. purely sensory
b. purely motor
c, both sensory and motor
d. interneuronal
e. involuntary
a. purely sensory
b. purely motor
c, both sensory and motor
d. interneuronal
e. involuntary
answer
c
question
The preganglionic fibers that connect a spinal nerve with an autonomic ganglion in the thoracic and lumbar region of the spinal cord form the ________.
a. white rami
b. gray rami
c. dorsal ramus
d. ventral ramus
e. dermatomes
a. white rami
b. gray rami
c. dorsal ramus
d. ventral ramus
e. dermatomes
answer
a
question
The ________ nerve, which arises in the cervical plexus, innervates the diaphragm.
a. ansa cervicalis
b. lesser occipital
c. radial
d. phrenic
e. sciatic
a. ansa cervicalis
b. lesser occipital
c. radial
d. phrenic
e. sciatic
answer
d
question
The dorsal root ganglia mainly contain ________.
a. axons of motor neurons
b. axons of sensory neurons
c. cell bodies of motor neurons
d. cell bodies of sensory neurons
e. synapses
a. axons of motor neurons
b. axons of sensory neurons
c. cell bodies of motor neurons
d. cell bodies of sensory neurons
e. synapses
answer
d
question
The white matter of the spinal cord contains ________.
a. bundles of axons with common origins, destinations, and functions
b. bundles of dendrites with common origins, destinations, and functions
c. sensory and motor nuclei
d. both axons and dendrites
e. interneurons
a. bundles of axons with common origins, destinations, and functions
b. bundles of dendrites with common origins, destinations, and functions
c. sensory and motor nuclei
d. both axons and dendrites
e. interneurons
answer
a
question
Postganglionic fibers of the autonomic nervous system that innervate internal organs do not rejoin the spinal nerve but form ________.
a. dorsal rami
b. ventral rami
c. white rami
d. gray rami
e. sympathetic nerves
a. dorsal rami
b. ventral rami
c. white rami
d. gray rami
e. sympathetic nerves
answer
e
question
Muscles of the neck and shoulder are innervated by spinal nerves from the ________ region.
a. cervical
b. thoracic
c. lumbar
d. sacral
e. coccygeal
a. cervical
b. thoracic
c. lumbar
d. sacral
e. coccygeal
answer
a
question
Axons crossing from one side of the spinal cord to the other within the gray matter are found in the ________.
a. anterior gray horns
b. ateral gray horns
c. posterior gray horns
d. gray commissures
e. white commissures
a. anterior gray horns
b. ateral gray horns
c. posterior gray horns
d. gray commissures
e. white commissures
answer
d
question
Active sites on the actin become available for binding after ________.
a. actin binds to troponin.
b. troponin binds to tropomyosin.
c. calcium binds to troponin.
d. calcium binds to tropomyosin.
e. myosin binds to troponin.
a. actin binds to troponin.
b. troponin binds to tropomyosin.
c. calcium binds to troponin.
d. calcium binds to tropomyosin.
e. myosin binds to troponin.
answer
c
question
The ability of smooth muscle to function over a wide range of lengths is called ________.
a. elasticity
b. contractility
c. extensibility
d. plasticity
e. variability
a. elasticity
b. contractility
c. extensibility
d. plasticity
e. variability
answer
d
question
Interactions between actin and myosin filaments of the sarcomere are responsible for ________.
a. muscle fatigue
b. the conduction of neural stimulation to the muscle fiber
c. muscle contraction
d. muscle relaxation
e. the striped appearance of skeletal muscle
a. muscle fatigue
b. the conduction of neural stimulation to the muscle fiber
c. muscle contraction
d. muscle relaxation
e. the striped appearance of skeletal muscle
answer
c
question
Fast muscle fibers can adapt to aerobic metabolism by generating more mitochondria in response to ________.
a. repeated, exhaustive stimulation
b. sustained low levels of muscle activity
c. high amounts of oxygen
d. increased levels of testosterone
e. prolonged periods of inactivity
a. repeated, exhaustive stimulation
b. sustained low levels of muscle activity
c. high amounts of oxygen
d. increased levels of testosterone
e. prolonged periods of inactivity
answer
a
question
The area in the center of the A band that contains no thin filaments is the ________.
a. Z line
b. erminal cisternae
c. H band
d. I band
e. zone of overlap
a. Z line
b. erminal cisternae
c. H band
d. I band
e. zone of overlap
answer
c
question
The delicate connective tissue that surrounds the skeletal muscle fibers and ties adjacent muscle fibers together is the ________.
a. endomysium
b. perimysium
c. epimysium
d. superficial fascia
e. periosteum
a. endomysium
b. perimysium
c. epimysium
d. superficial fascia
e. periosteum
answer
a
question
Skeletal muscle fibers are formed from embryonic cells called ________.
a. sarcomeres
b. myofibrils
c. myoblasts
d. fascicles
e. myomeres
a. sarcomeres
b. myofibrils
c. myoblasts
d. fascicles
e. myomeres
answer
c
question
Receptors for acetylcholine are located on the ________.
a. synaptic knob
b. motor end plate
c. sarcomere
d. synaptic cleft
e. transverse tubule
a. synaptic knob
b. motor end plate
c. sarcomere
d. synaptic cleft
e. transverse tubule
answer
b
question
The type of muscle fiber that is most resistant to fatigue is the ________ fiber.
a. fast
b. slow
c. intermediate
d. anaerobic
e. high-density
a. fast
b. slow
c. intermediate
d. anaerobic
e. high-density
answer
b
question
Muscles including the term capitis would be found within or attached to the ________.
a. head
b. forearm
c. thorax
d. abdomen
e. groin
a. head
b. forearm
c. thorax
d. abdomen
e. groin
answer
a
question
A muscle that assists the muscle that is primarily responsible for a given action is a(n) ________.
a. agonist
b. antagonist
c. synergist
d. originator
e. levator
a. agonist
b. antagonist
c. synergist
d. originator
e. levator
answer
c
question
Which statement regarding the arm muscles is correct?
a. The anconeus is a flexor while the brachialis is an extensor.
b. The lateral, long and medial head of triceps brachii all produce flexion at the elbow.
c. Biceps brachii works against the brachialis.
d. Triceps brachii works against the anconeus.
e. Brachioradialis is a flexor while the anconeus is an extensor.
a. The anconeus is a flexor while the brachialis is an extensor.
b. The lateral, long and medial head of triceps brachii all produce flexion at the elbow.
c. Biceps brachii works against the brachialis.
d. Triceps brachii works against the anconeus.
e. Brachioradialis is a flexor while the anconeus is an extensor.
answer
...
question
Muscles that laterally rotate the thigh include all of the following, except the ________.
a. gluteus maximus
b. obturator internus
c. obturator externus
d. piriformis
e. tensor fasciae latae
a. gluteus maximus
b. obturator internus
c. obturator externus
d. piriformis
e. tensor fasciae latae
answer
e
question
Which of the following describes the action of the serratus anterior?
a. adducts the arm
b. adducts and flexes the humerus
c. protracts the shoulder, rotates the scapula
d. medial rotation of the humerus
e. lateral rotation of the humerus
a. adducts the arm
b. adducts and flexes the humerus
c. protracts the shoulder, rotates the scapula
d. medial rotation of the humerus
e. lateral rotation of the humerus
answer
c
question
The powerful abductor muscle of the upper arm is the ________.
a. latissimus dorsi
b. ubscapularis
c. deltoid
d. coracobrachialis
e. teres major
a. latissimus dorsi
b. ubscapularis
c. deltoid
d. coracobrachialis
e. teres major
answer
c
question
Skeletal muscles in which the fascicles form a common angle with the tendon are ________ muscles.
a. parallel
b. circular
c. pennate
d. convergent
e. divergent
a. parallel
b. circular
c. pennate
d. convergent
e. divergent
answer
c
question
Triceps brachii insert on the olecranon process of the ulna and can act to ________.
a. flex the forearm.
b. extend the forearm.
c. abduct the forearm.
d. adduct the forearm.
e. extend the carpals.
a. flex the forearm.
b. extend the forearm.
c. abduct the forearm.
d. adduct the forearm.
e. extend the carpals.
answer
b
question
Which of the following is a member of the hamstring group?
a. biceps femoris
b. semimembranosus
c. semitendinosus
d. all of the above
e. B and C only
a. biceps femoris
b. semimembranosus
c. semitendinosus
d. all of the above
e. B and C only
answer
d
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