Autonomic ganglia contain ________
A) the cell bodies of motor neurons
B) both somatic afferent and efferent neurons
C) synapses between postganglionic fibers and their effectors
D) an outer connective tissue capsule around the cell bodies of preganglionic motor neurons
A
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Circadian rhythms are biological rhythms with what main characteristic?
A. They repeat approximately every 24 hours, like daily spikes in hormone secretion. B. They are cyclical, like the rhythmic beating of the heart. C. They are voluntary rhythms, like the time you decide to eat lunch each day. D. They cease to occur when a person is in a dark environment. E. They are cyclical, like the 28-day female menstrual cycle.
When a child raises her hand to show you she is five years old, she is using all of the following muscles except the
A. extensor digitorum. B. flexor digitorum. C. palmar interossei. D. lumbricals. E. dorsal interossei.
Select the correct statement about fertilization
A) If estrogen is present, the pathway through the cervical opening is blocked from sperm entry. B) Both spermatozoa and the ovulated secondary oocyte remain viable for about 72 hours in the female reproductive tract. C) Once inside the uterus, most sperm cells are protected and remain viable. D) Millions of sperm cells are destroyed by the vagina's acidic environment.
Which of the following does not function in decreasing appetite?
a. cholecystokinin (CCK) b. ghrelin c. corticotropin releasing hormone d. PYY3-36 e. insulin