The tough, fibrous, outermost covering of the spinal cord is the
A) arachnoid mater.
B) pia mater.
C) dura mater.
D) coccygeal ligament.
E) periosteum.
C
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Which of the light micrographs in the following figure shows the type of epithelial tissue whose structure allows it to be stretched or distended?
a) A b) D c) E d) G e) H
Vision impairment as a result of old age and the loss of elasticity in the lens is called ________
A) Diplopia B) Myopia C) Astigmatism D) Presbyopia
Which of the following describes the cells of unitary smooth muscle?
A) They exhibit spontaneous action potentials. B) They are used for vision and hair raising. C) They depend upon recruitment using the autonomic nervous system. D) They consist of muscle fibers that are structurally independent of each other.
Red bone marrow functions in the formation of
A) red blood cells only. B) white blood cells only. C) red and white blood cells only. D) red blood cells, white blood cells, and platelets.