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Preksha Dhyana :
This analogy is, however, oversimple. The endocrine system is, in fact, an elegant system which controls numerous positive negative systems to keep the conditions inside the body stable.
The main endocrines are : the pineal, pituitary, thyroid, parathyroid, thymus, adrenals, islets of Langerhans and gonads (sex-glands). All these glands are comparatively small, are devoid of ducts and have access to very rich vascular supply. The products of these glands are organic chemical compounds called hormones. They are effective in very small quantities. They regulate such important bodyprocesses, as growth and development, sexual activity, pregnancy and birth, metabolism and maintain homeostasis in the organism. Secretions of one gland profoundly influence and control the activities of others.
Regulation of body-processes depends on regulation of hormone production. For the most part, hormone-secretion of endocrine system is under the control of pituitary and hypothalamus. Variety of trophic hormones secreted by the pituitary reach thyroid, adrenals and gonads via the blood stream and stimulate each of them to secrete specific
Feedback System
C.N.S
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HYPOTHALA
GONADOTROPIC
T, 6.11.
ACTH
ANTERIOR PITUITARY
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OVARIES
ADA EL
THYROID
CORTEX
TISTICLES THYROID
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