Anaphysio

Topics: Endocrine system, Pancreas, Glands Pages: 2 (419 words) Published: August 26, 2013
RESEARCH
1. Give the importance of the endocrine system
~ The endocrine system helps regulate and maintain various body functions by synthesizing (making) and releasing hormones, chemical messengers. The major areas of control and integration include responses to stress and injury, growth and development, absorption of nutrients, energy metabolism, water and electrolyte balance, reproduction, birth, and lactation. The endocrine system is composed of glands that release their hormones directly into the bloodstream for chemical signaling of target cells. These glands include the pituitary gland, the pineal gland, the hypothalamus, the thyroid gland, the parathyroid glands, the thymus, the adrenal glands, the ovaries (in females) or testes (in males), and the pancreas http://www.pennmedicine.org/health_info/body_guide/reftext/html/endo_sys_fin.html 2. Contrast between an endocrine gland and an exocrine gland as to structure and function (table FORM! ) | ENDOCRINE GLAND| EXOCRINE GLAND|

STRUCTURE| Endocrine glands are ductless and secrete hormonesEndocrine glands do not form ducts and release their products directly into the blood.| Exocrine glands contain a glandular portion and a duct portion, the structures of which can be used to classify the gland. * The duct portion may be branched (called compound) or unbranched (called simple). * The glandular portion may be tubular or acinar, or may be a mix of the two (called tubuloacinar). If the glandular portion branches, then the gland is called a branched gland.| FUNCTION| secrete their hormones directly into the bloodstream excretes its essential product by way of a duct to some environment external to itself, be it either inside the body or on a surface of the body.| secrete their hormones into a duct that leaves the body externally: for example, sweat glands secretes its essential product without the use of a duct directly into the bloodstream or else by diffusion into its surrounding tissue...
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