Contraction of the cremaster muscle is responsible for ________
A) wrinkling of the skin covering the scrotum
B) movement of the testes in response to environmental stimuli
C) secretion of smegma from the prepuce
D) erection of the penis
B
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Approximately how many chemoreceptors for taste sensation (taste buds) are present in the oral cavity and throat of a human being?
a. 50,000 b. 10,000 c. 5,000 d. 1,000 e. 500
What is the correct sequence of organs for the formation and elimination of urine?
A. Bladder, urethra, kidney, ureter B. Kidney, bladder, ureter, urethra C. Kidney, urethra, bladder, ureter D. Kidney, ureter, bladder, urethra E. Urethra, bladder, kidney, ureter
If I have type a blood this means I have antibodies against
The A antigen the B antigen both a and B antigens neither a or B antigens
A lumbar puncture is used to analyze what?
A. EEG B. Electric stimuli C. CSF D. Heat