Ovaries secrete estrogen.
Answer the following statement true (T) or false (F)
True
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The knuckles of the hand are formed by the distal ends of the
A. carpals. B. metacarpals. C. phalanges. D. tarsals. E. metatarsals.
Female sex hormones are produced by the
A. uterus. B. breasts. C. ovaries. D. All apply.
Extracellular messengers binding on surface receptors may exert effects on cells via all the following means, except:
a. opening gated channels. b. opening a gated channel through activation of a G protein. c. activation of the adenylyl cyclase system. d. binding to sites and then being endocytized. e. ultimately activating protein kinases.
An alternate name for the prime mover in muscle action is
A) synergist. B) antagonist. C) agonist. D) fixator. E) insertion.