The structures that produce sound when air flows through them are the __________ __________.
Fill in the blank(s) with the appropriate word(s).
vocal cords or vocal folds
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Lymphatic vessels are structurally similar to what other vessels found in the body?
A) arteries B) veins C) capillaries D) None of the listed responses is correct.
What effect does the sympathetic nervous system have on micturition?
A) Sympathetic activity excites muscles of the internal urethral sphincter allowing micturition. B) Sympathetic activity inhibits muscles of the external urethral sphincter inhibiting micturition. C) Sympathetic activity excites muscles of the external urethral sphincter allowing micturition. D) Sympathetic activity excites muscles of the internal urethral sphincter inhibiting micturition. E) Sympathetic activity inhibits muscles of the internal urethral sphincter inhibiting micturition.
Pulmonary arteries are wider than systemic arteries. Therefore, pulmonary circuit blood pressure is
A. high and blood flows very slowly through pulmonary capillaries, maximizing gas exchange. B. low and blood flows very slowly through pulmonary capillaries, maximizing gas exchange. C. high and blood flows very rapidly through pulmonary capillaries, maximizing gas exchange. D. low and blood flows very rapidly through pulmonary capillaries, maximizing gas exchange.
Describe the structure and function of arrector pili
What will be an ideal response?