Inhibition of the baroreceptor reflex would prevent proper regulation of all but ________.
A. blood pressure
B. stroke volume
C. respiratory rate
D. heart rate
Answer: C
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Individuals at elevated risk for hypothermia include
A) the very old and the very young. B) very thin people. C) all of the above. D) homeless people exposed to the outdoors.
Which of the following correctly describes an erection?
A) The spongy tissue in the penis fills with air. B) Parasympathetic neurons release nitric oxide causing dilation of small arteries in the penis. C) Smooth muscles of vascular spaces in the penis contract. D) Parasympathetic impulses constrict arteries leading to the penis.
Sperm production occurs in the
A) ductus deferens. B) seminiferous tubules. C) epididymis. D) seminal vesicles. E) rete testis.
The most violent coughing is initiated when foreign objects contact the _____ of the trachea.
A. carina B. trachealis muscle C. tracheal rings D. mucosa