The pouchlike structure that joins the ileum at the ileocecal valve is the
A) appendix.
B) sigmoid colon.
C) rectum.
D) haustra.
E) cecum.
E
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Which of the following is a mechanistic explanation of a physiological phenomenon?
a. You breathe to obtain oxygen. b. You sweat to cool off. c. Your stomach secretes digestive juices when stimulated by the nervous system. d. Your heart beats to pump blood. e. Your kidneys produce urine so that cellular wastes do not poison your body.
_____ converts peroxide to water and oxygen
Fill in the blank(s) with the appropriate word(s).
The pineal gland produces the hormone __________.
Fill in the blank(s) with the appropriate word(s).
Acetylcholine (ACh) may excite postsynaptic neurons in the CNS; however, it may inhibit some postsynaptic neurons in the PNS. Explain how acetylcholine can be both excitatory and inhibitory
What will be an ideal response?