In the diagram, where is the mastoid process?
a) A
b) B
c) C
d) D
e) G
b
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Epinephrine and norepinephrine that are released from the adrenal glands affect target tissue for a longer period of time than the same substances released from neurons at their peripheral receptors. Why?
A) The effectors are less sensitive to epinephrine and norepinephrine released by the adrenal glands. B) The hormones released from the adrenal glands bind to different receptors than those released from neurons. C) The adrenal gland releases larger amounts of the neurotransmitters than the neurons. D) There are no enzymes to break down epinephrine and norepinephrine in the blood and very little in peripheral tissues. E) The epinephrine and norepinephrine from the adrenal glands are released by sympathetic neurons, whereas parasympathetic neurons release these substances at the effector organs.
The region of the brain that is smallest and oldest in evolutionary development is the
a. cerebellum. b. brain stem. c. hypothalamus. d. forebrain. e. basal nuclei.
Inflammation of the vertebrae is called ________________________________________
Fill in the blank(s) with correct word
Which of the following cytoskeleton components are responsible for the movement of chromosomes during cell division?
A) thick filaments B) microfilaments C) microtubules D) intermediate filaments E) All of the answers are correct.