If the dorsal respiratory group of neurons in the medulla oblongata were destroyed bilaterally,
A) a person would stop breathing.
B) pulmonary ventilation would increase markedly.
C) the respiratory minute volume would increase.
D) tidal volumes would decrease.
E) alveolar ventilation would increase.
A
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Matching
A) Weight B) Mass C) Matter D) Energy 25) Can be measured only by its effects on matter. 26) Anything that occupies space and has mass. 27) Although a man who weighs 175 pounds on Earth would be lighter on the moon and heavier on Jupiter, his ________ would not be different. 28) Is a function of, and varies with, gravity.
When ACh binds to nicotinic receptors, it
A. sometimes excites and sometimes inhibits the target cell depending on the extracellular fluid surrounding the cell. B. always produces an excitatory response. C. always produces an inhibitory response. D. sometimes excites and sometimes inhibits the target cell depending on the subtype of receptor.
Colony-stimulating factors are produced by ________________ and target cells in the _____________________, which results in _______________
A. macrophages; bone marrow; stimulation of proliferation of neutrophils and monocytes B. B cells; thymus; conversion of B cells to T cells C. NK cells; blood vessel walls; vasodilation D. monocytes; blood vessel walls; vasoconstriction E. basophils; bone marrow; release of histamine
Which of these is found in chylomicrons and plasma membranes, and is a precursor for bile salts and steroid hormones?
A. Phospholipids B. Protein C. Amino acids D. Monoglycerides E. Cholesterol