The essential organ(s) of the male reproductive system is (are) the:
a. spermatozoa
b. testes
c. penis
d. scrotum
b. testes
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Select the correct statement about blood flow.
A) It is relatively constant through all body organs. B) It is measured in mm Hg. C) It is greatest where resistance is highest. D) Blood flow through the entire vascular system is equivalent to cardiac output.
Select the correct statement about male sexual response
A) Expansion of the penile tissues results in dilation of the venous outflow. B) Erection is the result of vascular spaces in the erectile tissues filling with blood. C) Ejaculation is the result of parasympathetic stimulation. D) Sympathetic impulses are responsible for causing penile arteriolar dilation, resulting in erection.
What triggers erythropoietin release?
A) decreased blood oxygen levels B) damage to a blood vessel wall and subsequent exposure of collagen C) infection in the tissues D) increased blood carbon dioxide levels E) infection in the blood
Which is one of the major inhibitory neurotransmitters in the CNS?
A. Glutamate B. Gamma-aminobutyric acid (GABA) C. Beta-endorphin D. Norepinephrine E. Dopamine