Which of the following explains the neural mechanism of an erection?
A) It is a somatic reflex mediated predominantly by sympathetic nerve fibers.
B) It is an exclusively voluntary action mediated by the cerebral cortex.
C) It is an autonomic reflex mediated predominantly by sympathetic nerve fibers.
D) It is an autonomic reflex mediated predominantly by parasympathetic nerve fibers.
E) It is a somatic reflex mediated predominantly by parasympathetic nerve fibers.
D
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Which of the following is NOT a true statement regarding blood?
a) The normal average temperature of blood is around 100.4o F. b) The normal pH range for blood is 7.35-7.45. c) Hemocytoblasts are a common component of circulating blood. d) The primary circulating blood cell is the RBC. e) Blood is a liquid connective tissue consisting of cells and a liquid extracellular matrix.
Which of the following are the large output neurons of the cerebrum?
A. Oligodendrocytes B. Stellate cells C. Satellite cells D. Pyramidal cells
The body's major metabolic hormone, which is actually two iodine-containing hormones, is called ________
A) prolactin (PRL) B) growth hormone (GH) C) adrenaline D) thyroid hormone E) calcitonin
What is the term used for wavelike contractions that move the bolus along the length of the esophagus?
A. Peristalsis B. Deglutition C. Mastication D. None of these are correct.