Trace the pathway of an egg as it passes through the uterine tube. (1) ampulla (2) fimbriae (3) infundibulum (4) isthmus
A. 1, 2, 3, 4
B. 2, 4, 1, 3
C. 3, 4, 1, 2
D. 2, 3, 1, 4
E. 3, 1, 2, 4
D
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What is the definition of a "motor unit"?
A. All of the motor neurons supplying a single muscle B. A pair of antagonistic muscles C. A single motor neuron plus all the muscle fibers it innervates D. A single muscle fiber plus all of the motor neurons that innervate it E. All of the muscles that affect the movement of any given joint
A marathon runner was perspiring heavily. Which function of sweat was occurring?
A) Releasing heat from the body B) Absorbing enzymes into the body C) Releasing enzymes from the body D) Absorbing heat into the body
____________________-soluble hormones must use ____________________ systems to exert their effects on target cells
Fill in the blank(s) with correct word
Oxytocin
a. is not important for stimulating uterine contractions. b. causes contraction of the myoepithelial cells surrounding the alveoli of the breast. c. stimulates synthesis of milk by the milk glands. d. both (a) and (b) above. e. all of these answers.