The orgasm-emission phase of the male sexual response is stimulated by ________
A) efferent sympathetic signals from the sacral region of the spinal cord
B) efferent parasympathetic signals from the lumbar region of the spinal cord
C) efferent sympathetic signals from the lumbar region of the spinal cord
D) efferent parasympathetic signals from the sacral region of the spinal cord
E) efferent somatic signals from the thoracic region of the spinal cord
C
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What is true about spermatogenesis?
A) The process is similar to oogenesis. B) Spermatogenesis occurs in one short process. C) Primary spermatocytes undergo meiosis to form gametes. D) Spermatogonia undergo mitosis to form spermatocytes.
the substances absorbed into the lymph capillaries are?
a) glycerol and fatty acids b) glucose and glycerol c) amino acids and fatty acids d) glucose and amino acids
A muscle that decreases the size of an opening is a
a) rotator. b) tensor. c) pronator. d) sphincter. e) depressor.
Which type of congenital heart defect most commonly affects children born with Down syndrome (trisomy 21)?
a. tetralogy of Fallot b. atrioventricular septal defect c. ventricular septal defect d. transposition of great vessels