A power stroke involves
A. a myosin head pulling a thin filament toward the center of the sarcomere.
B. an actin molecule pulling a myosin molecule toward the M-line.
C. a thick filament pushing an actin filament towards the nearest Z-line.
D. a thin filament shortening in length and thereby shortening the sarcomere.
Answer: A
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This type of gland secretes oil for the skin and hair.
A. Sebaceous B. Sudoriferous C. Eccrine D. Apocrine
What are the three embryonic divisions of the digestive system?
A. Ectoderm, endoderm, mesoderm B. Stomach, liver, small intestine C. Coelom, dorsal cavity, ventral cavity D. Foregut, midgut, hindgut E. Stomach, small intestine, large intestine
The reactions where fats are broken down into glycerol and fatty acids are called ________.
A) lipolysis. B) glycerolysis. C) gluconeogenesis. D) glycolysis. E) liposuction.
Which statement is correct about terminal ganglia?
a. Those on parasympathetic preganglionic fibers lie in or near the effector organ. b. They give rise to sympathetic postganglionic fibers. c. They are the final common pathway for the autonomic nervous system. d. They contain muscarinic receptors. e. They lie in a chain located along either side of the spinal cord.