The vesicles that contain melanin are ________.
A. keratohyaline
B. lysosomes
C. carotenoids
D. lamellar bodies
E. melanosomes
Answer: E
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If the neural connections between the pons and medulla are severed, breathing will stop.
A) True B) False
The defecation reflex
a. is initiated when mass movements force fecal material into the rectum, stimulating stretch receptors in the rectal wall. b. involves relaxation of the internal anal sphincter and contraction of the sigmoid colon and rectum. c. can be overridden by voluntary contraction of the external anal sphincter. d. both (a) and (b) above. e. all of these answers.
In children hives are usually due to foods, food additives or infections.
a. true b. false
Action potentials from hypothalamic neurons cause the release of this hormone
A) luteinizing hormone (LH) B) prolactin C) growth hormone (GH) D) oxytocin