Which of the following functions as a motor protein in all three types of muscle tissue?
a) actin
b) myosin
c) troponin
d) titin
e) tropomyosin
b
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Which of the following occurs during days 6-14 of the menstrual cycle?
A) secretory phase B) menstruation C) proliferative phase D) ovulation
Which factor would reduce the net filtration pressure the most?
a. vasodilation of the afferent arteriole b. vasoconstriction of the efferent arteriole c. a large increase in blood colloid osmotic pressure d. a low capsular hydrostatic pressure e. a high glomerular hydrostatic pressure
Which of the following statements about the heart is true?
a. The left side of the heart is stronger than the right side. b. The right side of the heart is stronger than the left side. c. The left side of the heart pumps a greater volume of blood than the right side. d. The right side of the heart pumps a greater volume of blood than the left side. e. None of these.
The muscularis layer in the wall of the digestive tract is
A. skeletal muscle throughout the tract, especially in the large intestine. B. the layer of the digestive tract wall that contains capillaries. C. in direct contact with the food that is consumed. D. composed of a layer of circular smooth muscle fibers and a layer of longitudinal smooth muscle fibers. E. connective tissue and the peritoneum.