ANATOMY
AND
PHYSIOLOGY
OF
ENDOCRINE
SYSTEM
Functions of body are regulated by major control system;
Nervous system
Endocrine system
, Endocrine glands are ductless glands that secrete hormones.
They control body activities by releasing hormone directly in the bloodstream.
Major endocrine glands
Hypophysis cerebri or pituitary gland
Thyroid gland
Parathyroid gland
Adrenal or suprarenal glands
Groups of endocrine cells may be present in organs that have other function
Islets of langerhans of pancreas
Interstitial cells of testes
Follicle & corpus luteum of ovary
Hormone secreted by placenta
Endocrine glands & their secretions
Glands Hormones
Pituitary gland Anterior lobe GH,TSH,ACTH,FSH, prolactin
Posterior lobe ADH (vasopressin), oxytocin
Thyroid gland Thyroxine (T3),triiodothyronine( T4), calcitonin
Parathyroid gland Parathormone
Adrenal gland Cortex Glucocorticoids,mineralocorticoids,sex
hormones
Medulla Epinephrine, norepinephrine, dopamine
Pancreas Glucagon, insulin, somatostatin, pancreatic
polypeptide
, GI hormones Gastrin, secretin, cholecystokinin(CCK),
vasoactice intestinal polypeptide(VIP), gastric
inhibitory polypeptide (GIP)
Others Vit D,ANP,renin, angiotensin, erythropoietin,
melatonin
Functions of endocrine glands
Growth & development of body
Helps in digestion & absorption of food
Helps in reproductive functions
Regulation of body fluid volume & its composition
Control of behaviour
Coordination of various activities along with nervous system
Hormone
Definition
Hormone is a chemical substance that is secreted into the body fluids by one cell or a
group of cells & that exerts a physiological control effect on other cells of the body.
Hormones are also called chemical messengers.
Hypophysis cerebri or pituitary gland
AND
PHYSIOLOGY
OF
ENDOCRINE
SYSTEM
Functions of body are regulated by major control system;
Nervous system
Endocrine system
, Endocrine glands are ductless glands that secrete hormones.
They control body activities by releasing hormone directly in the bloodstream.
Major endocrine glands
Hypophysis cerebri or pituitary gland
Thyroid gland
Parathyroid gland
Adrenal or suprarenal glands
Groups of endocrine cells may be present in organs that have other function
Islets of langerhans of pancreas
Interstitial cells of testes
Follicle & corpus luteum of ovary
Hormone secreted by placenta
Endocrine glands & their secretions
Glands Hormones
Pituitary gland Anterior lobe GH,TSH,ACTH,FSH, prolactin
Posterior lobe ADH (vasopressin), oxytocin
Thyroid gland Thyroxine (T3),triiodothyronine( T4), calcitonin
Parathyroid gland Parathormone
Adrenal gland Cortex Glucocorticoids,mineralocorticoids,sex
hormones
Medulla Epinephrine, norepinephrine, dopamine
Pancreas Glucagon, insulin, somatostatin, pancreatic
polypeptide
, GI hormones Gastrin, secretin, cholecystokinin(CCK),
vasoactice intestinal polypeptide(VIP), gastric
inhibitory polypeptide (GIP)
Others Vit D,ANP,renin, angiotensin, erythropoietin,
melatonin
Functions of endocrine glands
Growth & development of body
Helps in digestion & absorption of food
Helps in reproductive functions
Regulation of body fluid volume & its composition
Control of behaviour
Coordination of various activities along with nervous system
Hormone
Definition
Hormone is a chemical substance that is secreted into the body fluids by one cell or a
group of cells & that exerts a physiological control effect on other cells of the body.
Hormones are also called chemical messengers.
Hypophysis cerebri or pituitary gland
