Pneumonectomy refers to
A. a bacterial infection of the lower respiratory tract.
B. collapsing of a lung due to a chest wound allowing outside air in the pleural space.
C. the surgical removal of a lung or lobe of a lung.
D. the constriction of lung tissue caused by fibrosis.
Answer: C
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Olfactory glands
A) house the sense of smell. B) regenerate to form new olfactory epithelium. C) react to aromatic molecules. D) coat the olfactory epithelium with a pigmented mucus. E) group as olfactory bulbs.
Which statements are correct concerning the parasympathetic division of the ANS?
a: Contains preganglionic cell bodies in brainstem nuclei b: Contains preganglionic cell bodies in the lateral horns of the T1-L2 regions c: Participates in the "fight-or-flight" response d: Helps maintain homeostasis e: Contains preganglionic cell bodies in the sacral region of the spinal cord A. a, d, e B. a, c, e C. b, c, d D. b, c E. c, d, e
Explain the polar character of an ammonia molecule (NH3). What is the cause of the partial charges? What is the overall charge for NH3?
What will be an ideal response?
A centrifuged sample of blood shows 53% plasma, 1% buffy coat, and 46% erythrocytes. What percent of the blood is the hematocrit?
A) 53% B) 47% C) 46% D) 1%