Which cells resemble basophils and are found in connective tissue, close to small blood vessels?
A. Cytokines
B. Mast cells
C. NK cells
D. Dendritic cells
E. Alveolar macrophages
Answer: B
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When you travel on a moving walkway or an elevator, the linear acceleration of your body is sensed by the
A. cochlea. B. semiciercular canals. C. utricle and saccule. D. ossicles.
The binding of ATP to myosin causes an allosteric change in myosin's actin-binding site such that the affinity of myosin for actin is decreased
Indicate whether the statement is true or false.
Attachments to muscles that form slender bands are called ________.
Fill in the blank(s) with the appropriate word(s).
When the blood pressure becomes elevated above normal,
a. the carotid-sinus and aortic-arch baroreceptors increase their rate of firing. b. the cardiovascular control center decreases sympathetic and increases parasympathetic activity to the heart and blood vessels. c. arteriolar vasodilation occurs as a compensatory response. d. two of these answers. e. all of these answers.