Which of the following is an inhalation followed by many short convulsive exhalations during which the rima glottidis remains open and the vocal folds vibrate, accompanied by characteristic facial expressions?
a) sneezing
b) yawning
c) hiccupping
d) laughing
e) Valsalva maneuver
d
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A patient has an end-diastolic volume of 125 ml. A heart attack has weakened her left ventricle so it can pump a stroke volume of only 40 ml. Calculate her end-systolic volume
A) 85 ml B) 3.1 ml C) 5000 ml D) 165 ml E) There is not enough data given to calculate the end-systolic volume.
When venous return is increased, stretch receptors in the atria of the heart are activated. This results in
A) increased glomerular filtration. B) decreased urine production. C) increased thirst. D) secretion of ADH. E) inhibition of ADH secretion.
Human chorionic gonadotropin is
a. secreted from the corpus albicans b. secreted from the developing placenta c. at its highest level within the first two months of gestation d. both a and c e. both b and c
The middle ear consists of a fluid-filled chamber.
Answer the following statement true (T) or false (F)