This receptor responds to acetylcholine from both sympathetic and parasympathetic preganglionic fibers:
a. muscarinic
b. alpha
c. beta
d. nicotinic
D
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During the defecation reflex, the
A) stretch receptors in the rectal walls stimulate parasympathetic motor neurons. B) internal and external anal sphincters relax simultaneously. C) abdominal wall relaxes and the internal abdominal pressure decreases. D) gastroileal reflex moves materials into the rectum through mass peristalsis. E) decreased peristaltic contractions occur in the sigmoid colon and rectum.
Match the following bones to their location in the body
What will be an ideal response?
Support cells of the brain and spinal cord are called ________.
A. glia B. fibroblasts C. mesoderm D. neurons E. acinar
The primary target of the human immunodeficiency virus is the ________.
A. helper T lymphocyte B. memory cell C. macrophage D. plasma cell