Which of these is not a feature of the muscosa of the gastro - intestinal tracts?
(a) lamina propria
(b) goblet cells
(c) myentric plexus
(d) plicae circulares
Ans: (c) myentric plexus
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What is a power stroke?
A. The grabbing hold of the actin active sites by myosin B. The binding of ATP to myosin C. Myosin pulling on actin to draw Z-lines toward the center, shortening the sarcomere D. The electrical impulse that travels down the nerve cell to stimulate the muscle cell
The largest part of the brain is the
A. pons. B. cerebellum. C. midbrain. D. cerebrum.
Which of the following is not found in thick skin?
a. stratum corneum b. stratum lucidum c. sweat glands d. typical sebaceous glands
Protrusion of an organ through a structure that normally contains it is referred to as a
a) hernia. b) goiter. c) strain. d) sprain. e) hydrocele.