Chapter-22

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[144] chapter -22CHEMICAL COORDINATION ANDINTEGRATIONPOINTS TO REMEMBEREndocrine glands : These are ductless glands which secrete hormones directlyinto the blood : Non-nutrient chemicals, synthesised in trace amounts, acts asintracellular messengers and are specific in their : It is basal part of diencephalon. Has neurosecretory cells called nuclei which produce hormones to regulate the synthesis and secretion of pituitary gland hormones. Two types of hormones released are :Releasing hormones : Stimulate secretion of pituitary hormones, , Gona-dotropin releasing hormone stimulates pituitary gland to synthesise hormones : Inhibit secretions of pituitary hormones, , Soma-tostatin inhibits secretion of growth Gland : Located in bony cavity called as sella tursica.

[144] Chapter-22 CHEMICAL COORDINATION AND INTEGRATION POINTS TO REMEMBER Endocrine glands : These are ductless glands which secrete hormones directly into the blood stream. Hormones : Non-nutrient chemicals, synthesised in trace amounts, acts as intracellular messengers and are specific in their action.

  Chapter, Chapter 22