Catecholamines are the most abundant neurotransmitters in the CNS
Indicate whether the statement is true or false.
FALSE
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In an autonomic motor pathway, the first cell in the two-neuron chain is the ______ neuron
A. preganglionic B. postganglionic C. posterior D. terminal E. primary
Hormones secreted from the posterior pituitary:
A) are produced by neurosecretory cells in the hypothalamus. B) are transported in the hypothalamohypophysial portal system. C) include GH and ACTH. D) are classified as pheromones. E) both a and b
A single motor neuron with all the muscle cells it innervates is called a:
a. motor unit b. neuromuscular junction c. neurotransmitter d. both B and C above
Matching
A) C B) D C) B D) A E) E 17) Produces enzymes that break down all categories of foodstuffs. 18) Increases surface area for absorption via villi and microvilli. 19) Bacteria process undigested chyme from the small intestine. 20) Only digestive structure with three muscle layers. 21) Receives blood via the hepatic portal system. 22) Contains the brush border enzymes that complete digestion of carbohydrates and proteins. 23) Main function is to filter and process the nutrient-rich blood delivered to it. 24) Produces intrinsic factor. 25) Produces a mucoid barrier to prevent self-digestion.