FIGURE 11-6 Biosynthesis, packaging, and release of epinephrine in the adrenal medulla chromaffin cell. Abbreviations: PNMT, phenylethanolamine N-methyltransfer-ase; EP, epinephrine; NEP, norepinephrine; SAM, S-adenosylmethionine. Arrows pointing upward following the name of a compound refer to an increase in the concentration of that substance. Neurosecretory granules contain epinephrine, dopamine /3-hydroxylase, ATP, and Met- or Leu-enkephalin, as well as larger enkephalin-containing peptides or norepinephrine in place of epinephrine. Epinephrine and norepinephrine are contained in different cells. Enkephalins could also be contained in separate cells, although that is not completely clear. Presumably epinephrine, once secreted into the bloodstream, not only affects a-receptors of hepatocytes to ultimately increase blood glucose levels, as shown here, but also interacts with a-receptors on vascular smooth muscle cells and on pericytes to cause cellular contraction and increase blood pressure.

Cure Tennis Elbow Without Surgery

Cure Tennis Elbow Without Surgery

Everything you wanted to know about. How To Cure Tennis Elbow. Are you an athlete who suffers from tennis elbow? Contrary to popular opinion, most people who suffer from tennis elbow do not even play tennis. They get this condition, which is a torn tendon in the elbow, from the strain of using the same motions with the arm, repeatedly. If you have tennis elbow, you understand how the pain can disrupt your day.

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