When the surrounding temperature is low, heat is lost from the body by means of
a. radiation
b. conduction/convection
c. nonshivering thermogenesis
d. a and b
e. all of the above
D
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The synaptic knob of a neuromuscular junction is the portion of the muscle fiber that contains receptor sites for neurotransmitters.
Answer the following statement true (T) or false (F)
In a mother who has recently delivered a child, afterpains occur when
A. dopamine triggers uterine contractions. B. oxytocin triggers uterine contractions. C. estrogen triggers prostaglandin release. D. progesterone inhibits prostaglandin release.
The structure associated with pheromonal reception is
a. the nasal organ b. the olfactory mucosa c. papillae d. taste buds e. vomeronasal organ
A constant blood supply to this organ is a priority of the circulatory system:
a. heart. b. kidney. c. brain. d. muscle. e. liver.