ANATOMY+PHYS.LAB.MANUAL,MAIN VERSION
ANATOMY+PHYS.LAB.MANUAL,MAIN VERSION
4th Edition
ISBN: 9781264265442
Author: McKinley
Publisher: MCG
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Chapter 15, Problem 2CAL

Arlene was in a heightened state of alertness well after the incident because

  1. a. the adrenal medulla secreted epinephrine and norepinephrine.
  2. b. the parasympathetic division stimulated regions of the brain.
  3. c. the sympathetic division decreased overall autonomic tone of blood vessels.
  4. d. All of those are correct.
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A cell expresses a transmembrane protein that is cleaved at the plasma membrane to release an extracellular fragment. The fragment binds to receptor proteins on nearby cells and activates signaling pathways resulting in altered gene expression patterns in the cells. What form of intercellular signaling does this represent? OA. Contact-dependent signaling B. Paracrine signaling OC. Synaptic signaling D. Endocrine signaling E. Autocrine signaling
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