Answer the following statements true (T) or false (F)
1. ?-adrenergic receptors are the only receptors found on the heart.
2. Autonomic reflex centers occur in the spinal cord, medulla, and midbrain.
3. Cranial nerves III, VII, and IX supply the entire parasympathetic innervation of the head; however, only the preganglionic fibers lie within these three pairs of cranial nerves.
4. Because parasympathetic fibers never run in spinal nerves, rami communicantes are associated only with the sympathetic division.
5. Rami communicantes are designated white or grey to indicate whether or not the fibers passing through them are myelinated.
1. FALSE
2. TRUE
3. TRUE
4. TRUE
5. TRUE
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If you were a physician evaluating a young person who has conductive deafness, which of the following would you consider in your differential diagnosis?
A. Damage to the auditory nerve B. A brain tumor C. Use of the antibiotic drug streptomycin D. A torn tympanic membrane
The ________ is a bone that forms the inferior portion of the nasal septum and articulates with both the maxillae and palatines along the midline.
Fill in the blank(s) with the appropriate word(s).
Identify the body's three major buffer systems
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Which artery supplies the small intestine, cecum, ascending colon, and transverse colon?
A. Lumbar artery B. Inferior mesenteric artery C. Superior mesenteric artery D. Inferior phrenic artery