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BIO 252 COMPREHENSIVE EXAM QUESTIONS CORRECT AND RATED
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BIO 252 COMPREHENSIVE EXAM QUESTIONS CORRECT AND RATED
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BIO 252 COMPREHENSIVE EXAMQUESTIONS CORRECT AND RATED A
_______ cells function as immune/phagocytic cells within the central nervous
system
A. Ependymal
B. Astrocytes
C. Microglial
D. Schwann
E. Oligodendrogital
Verified Answer -C. Microglial
The myelin sheaths that surround the axons of some of the neurons in the
centra nervous system are formed by
A. Astrocytes
B. Oligodendrocytes
C. Microglia
D. Ependymal cells
E. Schwann cells
Verified Answer -B. Oligodendrocytes
A muscle that provides the major force of producing a specific movement is
called
,A. An antagonist
B. An agonist
C. A synergist
D. A fixation
E. A sidekick
Verified Answer -B. An agonist
During inhalation, ________ muscles contract to elevate the ribs. During forced
exhalation, _______ muscles contract to depress the ribs
A. External intercostals ; internal intercostals
B. Transverse abdominis ; diaphragm
C. Diaphragm ; transverse abdominis
D. Internal intercostals ; external intercostals
E. Rectus abdominis ; external obliques
Verified Answer -A. External intercostals ; internal intercostals
Which of the following are functions of various neuroglial cells
A. Forming myelin sheaths on axons
B. Secreting cerebrospinal fluid
C. Transmitting electrical impulses to the spinal cord
D. Storing episodic memories
E. Acting as phagocytes
Verified Answer -A. Forming myelin sheaths on axons, B. Secreting cerebrospinal
fluid, E. Acting as phagocytes
, During active muscle contraction, the myosin heads will bind to which protein?
A. Dystrophin
B. Actin
C. Titan
D. Troponin
E. Tropomyosin
Verified Answer -B. Actin
Which of the following glial cells are NOT found in the Central Nervous System?
A. Astrocytes
B. Schwann cells
C. Oligodendrocytes
D. Ependymal cells
E. Microglial cells
Verified Answer -B. Schwann cells
Which of the following would increase the conduction velocity of an action
potential?
A. Myelin sheath covering the axon
B. Colder temperatures
C. Longer axon length
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