ADRENAL MEDULLA
Reading Assignment:
Hadley, pp. 254, 315-334, 338-339.
Carmichael, S.W. and Winkler, H. The
adrenal chromaffin cell. Sci. Amer. 253(2): 40-49,
August 1985.
Lagercrantz, H. and Slotkin, T.A. The
"stress" of being born. Sci. Amer. 254(4): 100-107,
April 1986.
Objectives:
After reviewing your lecture notes and reading assignment, you should be able to:
1. Describe the histological features of the adrenal medulla.
Lecture -- 2/11
Text
-- pp. 317-319
Figure --
15.2
Carmichael and
Winkler
Anatomy
of the adrenal gland
Section
of adrenal gland (low power)
2. Outline the biosynthesis of epinephrine from tyrosine, including the names and
locations of the enzymes involved.
Lecture -- 2/11
Text
-- pp. 320-321
Figure --
14.3
Catecholamine
biosynthetic pathway
Carmichael and
Winkler
3. Name four stimuli to secretion of epinephrine.
Lecture -- 2/11
Text -- pp.
254, 321, 332
4. Describe the biological actions of epinephrine.
Lecture -- 2/11
Text
-- pp. 329-332
Lagercrantz
and Slotkin
5. Describe the mechanism of action of epinephrine, using its effect on hepatic
glycogen as an example.
Lecture -- 2/13
Text -- 323-328
Figures --
14.6,
14.9,
14.10,
14.11
Structure
of the beta-adrenergic receptor
Cyclic
AMP second messenger system
6. Discuss the possible physiological roles of stress and catecholamine release
during parturition.
Lecture -- 2/13
Lagercrantz and Slotkin
7. Outline the probable physiological roles of catecholamines and the relative
predominance of epinephrine vs. norepinephrine secretion in various vertebrate
species.
Lecture -- 2/13
Text -- pp. 319, 333-334
8. Describe the contributions of the following
scientists to the field of endocrinology:
a.
Walter
Cannon.

b.
Raymond
Ahlquist.
c.
James
Black.
Text -- pp.
4,
315-316, 323
1988
Nobel Press Release
Updated 2/07/08