What is found in the central canal of the spinal cord?
A. Cerebrospinal fluid
B. Astrocytes
C. Oligodendrocytes
D. Meningeal fluid
E. Blood plasma
Answer: A
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The organ of the inner ear of mammals that contains the hair cells is called the __________
Fill in the blank with the correct word.
Functions of the basal ganglia include
a. inhibiting muscle tone throughout the body. b. selecting and maintaining purposeful motor activity while suppressing useless or unwanted patterns of movement. c. helping monitor and coordinate slow, sustained contractions. d. all of these. e. none of these.
A boy grew rapidly and reached a height of 6'2" by the time he was 13. He had normal body proportions and sexual development was only slightly retarded. Which of the following caused his condition?
A. elevated vitamin D synthesis B. hypersecretion of growth hormone C. hypersecretion of testosterone D. hyposecretion of growth hormone E. an adrenal tumor that secretes androgens
Another name for a lymphatic follicle is a
A. lymphatic nodule. B. white pulp. C. lymph node medulla. D. thymic lobule.