The spinal curvature that develops as a child learns to walk shifts the trunk weight over the legs. It is an example of a ________ curve
A. primary
B. secondary
B
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The dura mater surrounding the brain consists of two layers. Give a functional reason for the fact that there are two layers instead of only one.
A. The two layers form a stronger blood-brain barrier. B. Arteries are sandwiched between the layers. C. Spaces between layers collect blood for return to the venous system. D. The spaces are where cerebrospinal fluid is reabsorbed. E. Fluid between the layers reduces friction.
Urine leaves the body through the:
a. urethra b. urinary bladder c. ureter d. nephron
The velocity of blood flow in capillaries is
a. greater than that for arterioles b. greater than that for veins c. slow enough to favor adequate exchange of nutrients and wastes d. both a and b e. both a and c
All of the following are functions of the anterior pituitary gland except which one?
A. Stimulates the production of sperm B. Regulates daily biological rhythms C. Causes widespread tissue growth D. Stimulates the secretion of thyroid hormone