________ is associated with a chronic productive cough, enlargement of mucous glands, and hypertrophy of the airway smooth muscle
A) Bronchiectasis B) Emphysema
C) Chronic bronchitis D) Asthma
C
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The function of the coronary sinus is to
A. connect the top and bottom halves of the heart. B. guide the aorta out of the heart. C. guide the inferior vena cava into the right atrium. D. take blood from the coronary circulation to the right atrium. E. shunt blood from the right atrium to the left atrium.
Helper T cells ________
A) function in the adaptive immune system activation B) often function to decrease the immune response C) bind tightly to target cells and release a lymphotoxin called perforin D) release B7 proteins
Which does not act as a satiety signal?
a. cholecystokinin. b. increased glucose utilization. c. orexins. d. leptin. e. insulin.
Infants have ________ deciduous teeth, whereas adults have ________ permanent teeth.
A. 32; 20 B. 28; 20 C. 20; 32 D. 16; 20 E. 32; 32