What is the main factor that determines the power of a muscle?
A) the total number of muscle fibers (cells) available for contraction
B) the length
C) the shape
D) the number of neurons innervating it
A
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The nucleus of a neuron is housed in the
a. axon b. axon hillock c. cell body d. collaterals e. dendrites
What is a sensation?
A. A response of a sensory organ B. A response to any conscious stimulus C. An unconscious response to a stimulus D. A response of a sensory receptor E. A subjective awareness of a stimulus
In humans, the yolk sac ________
A) forms the human urinary bladder B) passes nutrients to the embryo after digesting the yolk mass C) is no longer a useful structure D) is the site of origin for blood cells and primordial germ cells
This figure shows a posterior view of the organs of the female reproductive system. What structures does number 6 indicate?
A. Mesosalpinx B. Fimbriae C. Ovarian tubules D. Mesovaria E. Cilia