Chemistry And Biochemistry

The structures of the principal steroid hormones of the adrenal cortex are shown in Figure 10-6. The chemistry and structural relationships of the glucocorticoids compared to the other steroid hormones are reviewed in Chapter 2. The metabolic pathway for the production of glucocorticoids is presented in Figure 2-22.

A. Glucocorticoids and Stress

Glucocorticoids are secreted in large amounts in humans, up to 25 mg or more per day, and represent a major chemical response of the body to stress. A person undergoing long-term stress will have higher

FIGURE 10-3 Development of the adrenal glands: (A) at 5 weeks development of the human fetus; (B) enlargement of the mesothelium; (C) seventh week of development; (D) secondary cortex; (E) appearance of ganglionic cells; (F) differentiation into chromaffin bodies in the late fetus. Reproduced from Langebartel, D. A. (1977). "The Anatomical Primer," p. 443. University Park Press, Baltimore, Maryland.

FIGURE 10-3 Development of the adrenal glands: (A) at 5 weeks development of the human fetus; (B) enlargement of the mesothelium; (C) seventh week of development; (D) secondary cortex; (E) appearance of ganglionic cells; (F) differentiation into chromaffin bodies in the late fetus. Reproduced from Langebartel, D. A. (1977). "The Anatomical Primer," p. 443. University Park Press, Baltimore, Maryland.

FIGURE 10-4 Schematic view of the circulation in a mammalian adrenal gland. The arteries and arterioles are shown in the capsule (cap), the outer layer of which has been removed. Other vessels shown are the radially arranged capillaries (C), a few arterioles (A) in the cortex, and "arterial" and "venous" capillaries in the medulla. The zones of the cortex are identified as zona glomerulosa (ZG), zona fasciculata (ZF), and zona reticularis (ZR). M denotes the medulla and the CV central vein. Reproduced from Harrison, R. G. (1959). "A Textbook of Human Embryology," Vol. 1, p. 48. Blackwell Scientific, London.

FIGURE 10-4 Schematic view of the circulation in a mammalian adrenal gland. The arteries and arterioles are shown in the capsule (cap), the outer layer of which has been removed. Other vessels shown are the radially arranged capillaries (C), a few arterioles (A) in the cortex, and "arterial" and "venous" capillaries in the medulla. The zones of the cortex are identified as zona glomerulosa (ZG), zona fasciculata (ZF), and zona reticularis (ZR). M denotes the medulla and the CV central vein. Reproduced from Harrison, R. G. (1959). "A Textbook of Human Embryology," Vol. 1, p. 48. Blackwell Scientific, London.

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.

Get My Free Ebook


Post a comment