A primary focus of clonal expansion is best described as _____
a. the location in the B-cell zone where conjugate pairs of B and T cells undergo cellular proliferation, isotype switching, and somatic hypermutation
b. the location in the medullary cords where conjugate pairs of B cells and T cells undergo cellular proliferation and IgM is secreted
c. the dark zone of the germinal center where centroblasts divide and pack closely together
d. the initial wave of B-cell proliferation induced by T-independent antigens.
B
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The body space above the abdominal cavity is the ________ cavity.
Fill in the blank(s) with the appropriate word(s).
After intercourse, how long should a contraceptive sponge be left in place?
A) 1 hour B) 2 hours C) 4 hours D) 6 hours
Golgi tendon organs are
A) also called muscle spindles. B) soft tissues within a joint capsule. C) proprioceptors in muscle. D) proprioceptors in tendons.
During the stress response, peripheral blood vessels dilate
Indicate whether the statement is true or false