Which is not a type of sweat gland?
a. ceruminous
b. apocrine
c. sebaceous
d. mammary
Answer: a. ceruminous
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To stimulate muscle contraction, acetylcholine is released from the ___________ into the synaptic cleft.
A. synaptic vesicles B. junctional folds C. sarcoplasmic reticulum D. sarcolemma E. terminal cisterna
Which of the following statements concerning water reabsorption is correct?
a. water reabsorption is under control of vasopressin throughout the length of the nephron. b. the ascending limb of the loop of Henle is always impermeable to water. c. vasopressin makes the distal and collecting tubules impermeable to water. d. fifteen percent of the filtered water osmotically follows the absorption of Na+ and other solutes in the proximal tubule. e. water reabsorption is passive in the early portions of the nephron but is active in the distal portions of the nephron.
The movement of a substance from an area of high concentration to an area of less concentration is called
A. endocytosis. B. osmosis. C. diffusion. D. facilitated diffusion. E. active transport.
Somatotopy refers to the
A. precise correspondence between receptors and specific functional areas in the CNS. B. relationship between the spinal cord and associated areas in the brain. C. relationship between the spinal nerves and the cranial nerves. D. relationship between specific muscles and the nerves that innervate them. E. ability of the brain to identify the part of the body being innervated.