QUESTION 10
Which of the following proteins are active during anaerobic
fermentation?
myokinase
protease
acetylcholinesterase
phosphatse
2 points
QUESTION 11
_____________ has the greatest influence on resting membrane
potential.
Sodium
Chloride
Magnesium
Potassium
2 points
QUESTION 12
Ribosomes are in the ___________________.
soma
axon hillock
dendrite
axon
2 points
QUESTION 13
A mixed nerve has only efferent neurons.
True
False
2 points
QUESTION 14
Myoglobin is a protein that binds oxygen.
True
False
2 points
QUESTION 15
Glycolysis makes approximately __________ ATPs
2
12
6
36
2 points
QUESTION 16
________________ have extensions (feet) that support a tight
seal called the blood brain barrier.
Microglial cells
Oligodendrocytes
Astrocytes
Ependymal cells
2 points
QUESTION 17
What is the boundary of a sarcomere?
A band
H band
Z discs
I band
2 points
QUESTION 18
Which of the following is a peptide?
Glycine
Epinephrine
Dopamine
Insulin
2 points
QUESTION 19
Which of the following are effectors?
Sensory neurons
Muscles
Interneurons
Receptors
2 points
QUESTION 20
This kind of contraction the length of the muscle does not
change but there is an increase of tension
Isotonic
Eccentric
Concentric
Isometric
2 points
QUESTION 21
________________ will produce cerebrospinal fluid
Schwann cells
Ependymal cells
Microglial cells
Astrocytes
2 points
QUESTION 22
Small distinct regions of gray matter within the CNS are
usually celled ________________.
white matter
nerves
nuclei
fasiscles
2 points
QUESTION 23
The _____________ subdivision carries information from the
central nervous system to skeletal muscle.
somatic
afferent
autonomic
peripheral
2 points
QUESTION 24
Hypocalcemia can cause depression, muscle weakness, and muscle
spasms.
True
False
2 points
QUESTION 25
Loss of muscle mass from lack of activity is called
_______________.
hypertrophy
tetanus
dystrophy
atrophy
2 points
QUESTION 26
Motor commands are carried by ________ from the brain.
cranial nerves
descending
spinal nerves
ascending
2 points
QUESTION 27
Somatic receptors are found in the skin, muscles and
tendons.
True
False
2 points
QUESTION 28
A calcium binding protein found in smooth muscle is
________________.
troponin
tropomyosin
calmodulin
dystrophin
2 points
QUESTION 29
Tendon organs are ______________.
pain receptors
visceral recptors
chemoreceptors
proprioceptors
2 points
QUESTION 30
Reflexes that use two neurons are called ____________ reflex
arcs.
monosynaptic
ipsilateral
polysynaptic
contralateral
2 points
QUESTION 31
The resting membrane potential has a net positive
charge.
True
False
2 points
QUESTION 32
An action potential is reversible.
True
False
2 points
QUESTION 33
When the origin and destination of a tract are on opposite
sides of the body, this is a _______________ tract
monosynaptic
polysynaptic
contralateral
ipsilateral
2 points
QUESTION 34
Which of the following produce lactate?
Type II fast glycolytic fibers
Type I slow oxidative fibers
Red fibers
Type I slow twitch fibers
2 points
QUESTION 35
When the origin and destination of a tract are on the same
side of the body, this is a __________ tract.
polysynaptic
monosynaptic
contralateral
ipsilateral
2 points
QUESTION 36
Identify the major parts of a typical somatic reflex. List the
function of each.
Path: pWords:0
2 points
QUESTION 37
_______________ collects information from various cells to
excite a postsynaptic cell.
Reverberating
Divergent pathways
Convergent pathways
Parallel after discharge
2 points
QUESTION 38
A neuron with one axon and several dendrites is
_____________.
bipolar
multipolar
axoplasmic
unipolar
2 points
QUESTION 39
Which of the following is an ascending tract of the spinal
cord?
Gracile fasciculus
Tectospinal tract
Corticospinal tract
Reticulospinal ttract
2 points
QUESTION 40
The ___________ carries signals to the smooth muscle in the
intestines.
visceral sensory division
visceral motor division
somatic sensory division
somatic motor division
2 points
QUESTION 41
Acetylcholine is released from the _____________ into the
synaptic cleft
terminal cisterns
sarcolemma
sarcoplasmic reticulum
vescicles
2 points
QUESTION 42
The meninx closest to bone tissue is the
_______________.
subdural space
arachnoid mater
pia mater
dura mater
2 points
QUESTION 43
___________________ receives signals in a neuron,
Axon hillock
Axons
Soma
Dendrites
2 points
QUESTION 44
List three characteristics of nerve tissue.
Path: pWords:0
2 points
QUESTION 45
Which of the following has the somas of sensory neurons?
Anterior ramus
Meningeal branch
Posterior (dorsal) root
Anterior (ventral) root
2 points
QUESTION 46
There are ______ pairs of spinal nerves
31
35
12
24
2 points
QUESTION 47
Cardiac, smooth, and skeletal muscle is ___________.
involuntary
multi-nucleated
striated
excitable
2 points
QUESTION 48
Which of the following carries a signal to the spinal
cord?
Basal ganglion
Third order neuron
First order neuron
Second order neuron
2 points
QUESTION 49
Which is the most common inhibitory neurotransmitter?
Acetylcholine
GABA
Epinephrine
Norepinephrine
2 points
QUESTION 50
In many pathways, second order neurons synapse with third
order neurons at the _______________.
thalamus
cerebral cortex
ventral horn
dorsal root ganglion
2 points
QUESTION 51
Cardiac muscles can contract because of _____________.
the basement membrane
tight junctions
desmosomes
intercalated discs
2 points
QUESTION 52
Upper motor neurons synapse with lower motor neurons at the
anterior horn
True
False
2 points
QUESTION 53
A calcium binding protein found in skeletal muscle tissue is
_______________.
calmodulin
troponin
tropomyosin
dystrophin
2 points
QUESTION 54
Myelin is mostly ______________.
lipids
nucleic acids
proteins
sugars
2 points
QUESTION 55
Alternating light and dark bands found in skeletal muscle are
_____________.
myoblasts
myofibrils
striations
tetanus
2 points
QUESTION 56
The ___________ division tends to have a calm effect on the
body.
parasympathetic
somatic
central nervous system
sympathetic
2 points
QUESTION 57
Aerobic respiration produces approximately ______ ATPs per
glucose molecule.
12
4
24
36
2 points
QUESTION 58
List a similarity between skeletal, smooth and cardiac muscle
tissue. List a difference between skeletal, smooth and cardiac
muscle.
Path: pWords:0
2 points
QUESTION 59
______________ carries signals from the central nervous system
to skeletal muscles.
Visceral fibers
Afferent fibers
Somatic fibers
Efferent fibers
2 points
QUESTION 60
______________ surrounds muscle fascicles.
Tendons
Perimysium
Endomysium
Epimysium
2 points
QUESTION 61
_______________ are found in the brain and spinal cord.
Interneurons
Motor neurons
Sensory neurons
Bipolar neurons
2 points
QUESTION 62
The ___________ stores calcium in skeletal muscle
tissue.
sarcoplasm
nucleus
sarcoplasmic reticulum
sarcolemma
2 points
QUESTION 63
This segment of the spinal cord has 8 pairs of spinal
nerves.
Sacral
Thoracic
Cervical
Lumbar
2 points
QUESTION 64
Which cells form myelin in the spinal cord?
Ependymal cells
Astrocytes
Microglial cells
Oligodendrocytes
2 points
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