The sheaths wrapped around nerve fibers of the peripheral nervous system can be:
A) myelinated.
B) unmyelinated.
C) striated.
D) both A and B.
D
Explanation: D) Correct. The sheaths can be myelinated or unmyelinated.
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Diabetic and hypertensive retinopathy are both characterized by the appearance of:
A) Macular edema B) Cloudy corneas C) Microinfarctions D) Intraretinal hemorrhages
The return phase to the starting position of the abdominal curl-up is _____ by a(n) _____.
A. caused; concentric contraction of the rectus abdominis, external oblique abdominal, and internal oblique abdominal B. controlled; concentric contraction of the rectus abdominis, external oblique abdominal, and internal oblique abdominal C. caused; eccentric contraction of the rectus abdominis, external oblique abdominal, and internal oblique abdominal D. controlled; eccentric contraction of the rectus abdominis, external oblique abdominal, and internal oblique abdominal
The bundle branches are part of the system that controls the heart rate.
Indicate whether the statement is true or false.
It is suggested that children NEVER have any unblocked time in the sun
Indicate whether the statement is true or false