Endocytosis of any kind requires metabolic energy
Indicate whether the statement is true or false.
TRUE
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A pig will tolerate a bucket over its head to move it around
Indicate whether the statement is true or false
Relative to veins with similar circumferences, arteries contain more ________.
A. endothelial cells B. valves C. smooth muscle D. two of the above
Detrusor muscle contraction is stimulated by:
A) the superior hypogastric nerve. B) lumbar splanchnic nerves. C) pelvic splanchnic nerves. D) internal pudendal nerve. E) contractions of the levator ani.
The fibrous skeleton of the heart is important because it
A) helps guide the blood into the proper chambers in sequence. B) transmits electrical activity from the atria to the ventricles. C) directs the flow of blood into the arteries. D) forces electrical activity to be conducted through the atrioventricular node.