Three anterior swellings of the neural tube that appear during the fourth week of development are the forebrain, midbrain, and __________.
Fill in the blank(s) with the appropriate word(s).
hindbrain
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Nerve impulses are transmitted only along exposed portions of an axon
Indicate whether this statement is true or false.
Which of the following is an excitatory neurotransmitter in the brain?
A. Gamma-aminobutyric acid (GABA) B. Aspartate C. Glutamate D. Glycine E. Lipofuscin
Which division of the nervous system shows a greater capacity for regeneration?
A. CNS B. PNS
Which of the following statements concerning the dorsal and ventral respiratory groups is false?
A. They are located in the reticular activating system. B. There is cross communication between these two groups. C. These groups establish the basic rate and depth of breathing. D. These groups increase the number of action potentials to the respiratory muscles during inspiration. E. Two dorsal and two ventral respiratory groups make up the medullary respiratory center.