The master biological clock that serves as the pacemaker for the body's circadian rhythms is the __________
Fill in the blank(s) with correct word
suprachiasmatic nucleus
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contraction that utilize anaerobic ATP production
A) require maximal contraction of muscles for short periods of time B) do not use ATP very quickly C) rely on slow muscle fibers D) do not rely on the energy reserve of creatine phosphate
The femur
A. is the longest bone in the body. B. possesses a medial malleolus. C. directly articulates with the fibula. D. is part of the pelvic girdle.
The reason much of the blood in the fetal right atrium is shunted to the left atrium through the foramen ovale is
A. the blood pressure in the left atrium is greater than in the right atrium. B. the fetus is in an antigravity situation provided by the amnionic fluid. C. there is a valve that directs the blood that way. D. the umbilical arteries have valves. E. the blood pressure in the right atrium is greater than in the left atrium.
The brachialis, the biceps brachii, and the brachioradialis muscles flex the ____ at the elbow
a. forearm b. wrist c. arm d. shoulder