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A&p Muscle And Nervous System

63 Questions  I  By Goddessbright
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1.  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.
2.  Lines brain cavities
A.
B.
C.
3.  (4) may be involved in exacting types of mental activity
A.
B.
C.
D.
4.  The anatomical region of a multipolart neuron that has the lowest threshold for generating an AP is the
A.
B.
C.
D.
5.  The ions that enter the skeletal muscle during action potential generation are
A.
B.
C.
D.
6.  The connective tissue covering that encloses the sarcolemma of an individual muscle fiber is called the
A.
B.
C.
D.
7.  (3) Many neurons influence a few neurons
A.
B.
C.
D.
8.  The neurotransmitter released by somatic motor neurons is:
A.
B.
C.
9.  (6) does not lie in the I band
A.
B.
10.  CNS Phagocytes
A.
B.
C.
11.  (2) One or a few inputs ultimately influence large numbers of neurons
A.
B.
C.
D.
12.  Characteristics of isometric contractions include all but
A.
B.
C.
D.
13.  Which is most important in endurance sports?
A.
B.
C.
14.  The velocity of nerve impulse conduction is greatest in
A.
B.
C.
D.
15.  (4) Contains myosin
A.
B.
16.  A prime mover of hip flexion is the
A.
B.
C.
D.
17.  Myelinates nerve fibers in the PNS
A.
B.
C.
18.  Chemical synapses are characterized by all of the following except
A.
B.
C.
D.
19.  The neuropeptides that act as natural opiates are:
A.
B.
C.
D.
20.  What type of current flows through the axolemma during the steep phase of repolarization?
A.
B.
C.
21.  Identify which type(s) of supporting cell is being described. Myelinates nerve fibers in the CNS
A.
B.
C.
D.
E.
F.
22.  A fascicle is a
A.
B.
C.
D.
23.  The chewing muscles that protrude the mandible and produce side-to-side grinding movements are
A.
B.
C.
D.
24.  Thick and thin myofilaments have different compositions. For each descriptive phrase, indicate whether the filament is thick or thin. (1) Contains actin
A.
B.
25.  The primer mover of inspiration is the
A.
B.
C.
D.
26.  (5) Contains troponin
A.
B.
27.  Contraction elicited by a single brief stimulus is called a
A.
B.
C.
D.
28.  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.
29.  Intrinsic muscles of the back that promote extension of the spine (or head) include all but
A.
B.
C.
D.
30.  In walking, which two lower limb muscles keep the forward-swinging foot from dragging on the ground?
A.
B.
C.
D.
31.  The arrangement of muscle fibers in which the fibers are arranged at an angle to a central longitudinal tendon is
A.
B.
C.
D.
32.  (2) raises the eyebrows
A.
B.
C.
33.  Muscles that cause plantar flexion include all but the
A.
B.
C.
D.
E.
34.  Which results in the formation of lactic acid?
A.
B.
C.
35.  Aerobic exercise results in all of the following except
A.
B.
C.
D.
36.  Which of the following structures is not part of the central nervous system?
A.
B.
C.
D.
37.  An IPSP is inhibitory because
A.
B.
C.
D.
38.  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.
39.  The function of the T tubules in muscle contraction is to
A.
B.
C.
D.
40.  Match the facial muscle description to the appropriate name. (1) Squints the eye
A.
B.
C.
41.  Inhibition of acetylcholinesterase by poisoning blocks neurotransmission at the neuromuscular junction because
A.
B.
C.
D.
42.  Biogenic amine neurotransmitters include all but
A.
B.
C.
D.
43.  Assume that an EPSP is being generated on the dendritic membrane.  Which will occur?
A.
B.
C.
D.
44.  (3) Smiling muscle
A.
B.
C.
45.  The prime mover of hip extension against resistance is the
A.
B.
C.
D.
46.  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.
47.  The arm muscle that both flexes the elbow and supinates the forarm is the
A.
B.
C.
D.
48.  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.
49.  Muscles that depress the hyoid bone and larnyx include all but the
A.
B.
C.
D.
50.  (5) Pulls the scalp posteriorly
A.
B.
C.
51.  Which of the following is a large, deep muscle that protracts the scapula during punching?
A.
B.
C.
D.
52.  (4) Puckers the lips
A.
B.
C.
53.  (2) Contains ATPases
A.
B.
54.  Which criterion (or criteria) are used in naming the gluteus medius?
A.
B.
C.
D.
E.
55.  Which provides the highest yield of ATP per glucose molecule?
A.
B.
C.
56.  The quadriceps include all but
A.
B.
C.
D.
E.
57.  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.
58.  Which does (do) not require that oxygen be available?
A.
B.
C.
59.  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.
60.  (3) attaches to the Z disc
A.
B.
61.  Which has carbon dioxide and water products?
A.
B.
C.
62.  Myoglobin has a special function in muscle tissue.  It ...
A.
B.
C.
63.  Helps regulate the ionic composition of CNS extracellular fluid
A.
B.
C.
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