A&p Muscle And Nervous System

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1.  Which of the following structures is not part of the central nervous system?
A.
B.
C.
D.
2.  Identify which type(s) of supporting cell is being described. Myelinates nerve fibers in the CNS
A.
B.
C.
D.
E.
F.
3.  Lines brain cavities
A.
B.
C.
4.  Myelinates nerve fibers in the PNS
A.
B.
C.
5.  CNS Phagocytes
A.
B.
C.
6.  Helps regulate the ionic composition of CNS extracellular fluid
A.
B.
C.
7.  What type of current flows through the axolemma during the steep phase of repolarization?
A.
B.
C.
8.  Assume that an EPSP is being generated on the dendritic membrane.  Which will occur?
A.
B.
C.
D.
9.  The velocity of nerve impulse conduction is greatest in
A.
B.
C.
D.
10.  Chemical synapses are characterized by all of the following except
A.
B.
C.
D.
11.  Biogenic amine neurotransmitters include all but
A.
B.
C.
D.
12.  The neuropeptides that act as natural opiates are:
A.
B.
C.
D.
13.  Inhibition of acetylcholinesterase by poisoning blocks neurotransmission at the neuromuscular junction because
A.
B.
C.
D.
14.  The anatomical region of a multipolart neuron that has the lowest threshold for generating an AP is the
A.
B.
C.
D.
15.  An IPSP is inhibitory because
A.
B.
C.
D.
16.  Identify the neuronal circuits described the choosing the correct response. (1) Impulses continue around and around the circuit until one neuron stops firing.
A.
B.
C.
D.
17.  (2) One or a few inputs ultimately influence large numbers of neurons
A.
B.
C.
D.
18.  (3) Many neurons influence a few neurons
A.
B.
C.
D.
19.  (4) may be involved in exacting types of mental activity
A.
B.
C.
D.
20.  A muscle that assists an agonist by causing a like movement or by stabilizing a joint over which an agonist acts is
A.
B.
C.
D.
21.  The arrangement of muscle fibers in which the fibers are arranged at an angle to a central longitudinal tendon is
A.
B.
C.
D.
22.  Match the facial muscle description to the appropriate name. (1) Squints the eye
A.
B.
C.
23.  (2) raises the eyebrows
A.
B.
C.
24.  (3) Smiling muscle
A.
B.
C.
25.  (4) Puckers the lips
A.
B.
C.
26.  (5) Pulls the scalp posteriorly
A.
B.
C.
27.  The primer mover of inspiration is the
A.
B.
C.
D.
28.  The arm muscle that both flexes the elbow and supinates the forarm is the
A.
B.
C.
D.
29.  The chewing muscles that protrude the mandible and produce side-to-side grinding movements are
A.
B.
C.
D.
30.  Muscles that depress the hyoid bone and larnyx include all but the
A.
B.
C.
D.
31.  Intrinsic muscles of the back that promote extension of the spine (or head) include all but
A.
B.
C.
D.
32.  Several muscles act to move and/or stabilize the scapula.  Which of the following are small rectangular muscles that square the shoulders as they act together to retract the scapula?
A.
B.
C.
D.
33.  The quadriceps include all but
A.
B.
C.
D.
E.
34.  A prime mover of hip flexion is the
A.
B.
C.
D.
35.  The prime mover of hip extension against resistance is the
A.
B.
C.
D.
36.  Muscles that cause plantar flexion include all but the
A.
B.
C.
D.
E.
37.  In walking, which two lower limb muscles keep the forward-swinging foot from dragging on the ground?
A.
B.
C.
D.
38.  Which criterion (or criteria) are used in naming the gluteus medius?
A.
B.
C.
D.
E.
39.  Which of the following is a large, deep muscle that protracts the scapula during punching?
A.
B.
C.
D.
40.  The connective tissue covering that encloses the sarcolemma of an individual muscle fiber is called the
A.
B.
C.
D.
41.  A fascicle is a
A.
B.
C.
D.
42.  Thick and thin myofilaments have different compositions. For each descriptive phrase, indicate whether the filament is thick or thin. (1) Contains actin
A.
B.
43.  (2) Contains ATPases
A.
B.
44.  (3) attaches to the Z disc
A.
B.
45.  (4) Contains myosin
A.
B.
46.  (5) Contains troponin
A.
B.
47.  (6) does not lie in the I band
A.
B.
48.  The function of the T tubules in muscle contraction is to
A.
B.
C.
D.
49.  The sites where the motor nerve impulse is transmitted from the nerve endings to the skeletal muscle cell membranes are the
A.
B.
C.
D.
50.  Contraction elicited by a single brief stimulus is called a
A.
B.
C.
D.
51.  A smooth, sustained contraction resulting form very rapid stimulation of the muscle, in which no evidence of relaxation is seen, is called a
A.
B.
C.
D.
52.  Characteristics of isometric contractions include all but
A.
B.
C.
D.
53.  During muscle contraction, ATP is provided by (a) coupled reaction of creatine phosphate with ADP, (b) aerobic respiration of glucose and (c) anaerobic glycolysis.  Which provides ATP fastest?
A.
B.
C.
54.  Which does (do) not require that oxygen be available?
A.
B.
C.
55.  Which provides the highest yield of ATP per glucose molecule?
A.
B.
C.
56.  Which results in the formation of lactic acid?
A.
B.
C.
57.  Which has carbon dioxide and water products?
A.
B.
C.
58.  Which is most important in endurance sports?
A.
B.
C.
59.  The neurotransmitter released by somatic motor neurons is:
A.
B.
C.
60.  The ions that enter the skeletal muscle during action potential generation are
A.
B.
C.
D.
61.  Myoglobin has a special function in muscle tissue.  It ...
A.
B.
C.
62.  Aerobic exercise results in all of the following except
A.
B.
C.
D.
63.  The smooth muscle type found in the walls of digestive and urinary system organs that exhibits gap junctions and pace-maker cells is
A.
B.
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