How many tactile mechanoreceptors are estimated to be in a typical fingertip?
a. 17,000
b. 5,000
c. 1,700
d. 500
e. 170
a
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The ratio of intracellular to extracellular fluids in the body of an average male is
A. 2:1 B. 1:2 C. 3:2 D. 1:1
The outermost layer of the pericardial sac is the serous pericardium
a. True b. False Indicate whether the statement is true or false
The stratum basale
A. contains cells that undergo mitosis to form new epidermal cells. B. contains many blood vessels that nourish the epidermis. C. contains cells that undergo meiosis to form new epidermal cells. D. is easily shed when you rub your hands together. E. has a mixture of living and dead cells-mostly dead.
A football player can hear his coach's voice above the noise of the crowd and can sense an opponent about to run him down. These abilities are due to the action of what part of the brain?
A. Pons B. Epithalamus C. Pineal body D. Thalamus E. Hypothalamus