The gaps in the sheath that insulates axons are called ________
A) myelin sheath gaps B) gaps of Schwann
C) outer collar of perinuclear cytoplasm D) myelinated fibers
Answer: A
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In the diagram shown below, which cellular junction is a tight junction?
a) A b) B c) C d) D e) E
Physiology is closely related to ____________________, the study of the structure of the body
Fill in the blank(s) with correct word
Thrush is a characteristic of the clinical latency stage of AIDS.
a. true b. false
Which best describes a role of L-type Ca2+ channels in cardiac muscle cells?
A. They function exactly the same in cardiac muscle cells as they do in skeletal muscle. B. They are directly responsible for making cardiac muscle fatigue-resistant. C. They are responsible for preventing tetanic contractions. D. They cause the absolute refractory period to be very brief. E. They act as non-conducting voltage sensors that mediate excitation-contraction coupling.