The frequency of action potentials is ______
A) the reciprocal of the interspike interval
B) measured in hertz
C) measured in hertz and the same as the relative refractory period
D) the reciprocal of the interspike interval and measured in hertz
E) the same as the relative refractory period
Ans: D) the reciprocal of the interspike interval and measured in hertz
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Some marrow of long bones is termed "red" marrow. The function of red marrow is to
A. make vitamin D. B. manufacture blood cells. C. store adipose tissue. D. store bone-forming cells. E. manufacture tissue cells for the skin.
Which of the following movements is possible at the hip joint?
A. Adduction B. Rotation C. Flexion D. Circumduction E. All of the choices are correct.
The aponeuroses of all three flat muscles of the anterolateral abdominal wall interlace in which of the following structures?
(A) inguinal ligament (B) transversalis fascia (C) linea alba (D) anterior superior iliac spine (E) rectus abdominis
Fluid is kept from accumulating in tissue spaces by
A. breathing. B. the lymphatic system. C. sweating. D. the urinary system.