Monday, 6 April 2015

HUMAN ENDOCRINE SYSTEM FOR TNPSC GROUP 2 {ENGLISH}

Human Endocrine System Gland Hormone Functions Hypothalamus Releasing and inhibiting hormones and factors Posterior pituitary hormones produced here Control of another pituitary hormones Posterior pituitary gland Receives hormones from hypothalamus no hormones synthesised here stores and secretes the following: Oxytocin Antidiuretic hormone (ADH) (vasopressin) Ejection of milk from mammary gland, contraction of uterus during birth Reduction of urine secretion by kidney Anterior pituitary gland Follicle stimulating hormone (FSH) Luteinising hormone (LH) Prolactin Thyroid stimulating hormone (TSH) Adrenocorticotrophic hormone (ACTH or corticotrophin) Growth hormone (GH) In male, stimulate spermatogenesis In female, growth of ovarian follicles In male testosterone secretion In female secretion of oestrogen and progesterone, ovulation and maintenance of corpus luteum Stimulates milk production and secretion Synthesis and secretion of thyroid hormones growth of thyroid glands. Synthesis and secretion of adrenal cortex hormones growth of gland Protein synthesis, growth, especially of bone of limbs Parathyroid gland Parathormone Increases blood calcium level Decreases blood phosphate level Thyroid gland Triiodothyronine (T3)and thyroxine (T4) Calcitonin Regulation of basal metabolic rate, growth and development Decreases blood calcium level Adrenal cortex Glucocorticoids (cortisol) Mineralocorticoids (aldosterone) Protein breakdown, glucose/glycogen synthesis,adaptation to stress, anti-inflammatory/allergy effects Na+ retention in kidney, Na+ and K+ ratios in extracellular and intracellular fluids, raises blood pressure Adrenal medulla Adrenaline (epinephrine) Noradrenaline (norepinephrine) Increase rate and force of heartbeat, constriction of skin and gut capillaries Dilation of arterioles of heart and skeletal muscles, raising blood glucose level General constriction of small arteries, raising of blood pressure Islets of Langerhans Insulin (beta cells) Glucagon (alpha cells) Decreases blood glucose level, increases glucose and amino acid uptake and utilisation by cells Increases blood glucose level, breakdown of glucogen to glucose in liver stomach Duodenum Gastrin Secretin Cholecystokinin (Pancreozymin) Secretion of gastric juices Secretion of pancreatic juice Inhibits gastric secretion Emptying of gall bladder and release of pancreatic juice in to duodenum Kidney Ovary Renin Oestrogens(17 Beta-oestradiol) Progesterone Conversion of angiotensinogen into angiotensin Female secondary sex characteristics, oestrous cycle Gestation, inhibition of ovulation Corpus luteum Progesterone and oestrogen Progesterone ans oestrogen Growth and development of uterus Foetal development Placenta Chorionic gonadotrophin Human placental lactogen Maintenance of corpus luteum Stimulates mammary growth Testis Testosterone Male secondary sexual characteristics

 

HUMAN ENDOCRINE SYSTEM IS UNDER THE SYLLABUS OF TNPSC GROUP 2 , TNPSC GROUP 2A. TNPSC GROUP 4, TNPSC GROUP 7 ,TNPSC VAO AND TNTET ,TRB EXAMS

SYLLABUS : Blood and blood circulation‐Endocrine system‐Reproductive system‐Genetics the science of heredity‐Environment, ecology, health and hygiene, Bio‐ diversity and its conservation‐Human diseases, prevention and remedies‐Communicable diseases and noncommunicable diseases..

SEARCHING KEYWORD : TNPSC ZOOLOGY STUDY MATERIALS , ZOOLOGY STUDY MATERIALS TAMIL PDF. TNPSC  STUDY MATERIALS,TNPSC ZOOLOGY GROUP 2 STUDY MATERIALS , TNPSC GROUP 2A ZOOLOGY  STUDY MATERIALS. TNPSC GROUP 4 ZOOLOGY STUDY MATERIALS, TNPSC GROUP 7 ZOOLOGY STUDY MATERIALS ,TNPSC VAO ZOOLOGY MATERIALS .TNTET ZOOLOGY STUDY MATERIALS ,TRB EXAMS ZOOLOGY STUDY MATERIALS
 


 

Human Endocrine System

Gland
Hormone
Functions
Hypothalamus
Releasing and inhibiting hormones and factors
Posterior pituitary hormones produced here
Control of another pituitary hormones
Posterior pituitary gland
Receives hormones from hypothalamus no hormones synthesised here
stores and secretes the following:
Oxytocin
Antidiuretic hormone (ADH) (vasopressin)
Ejection of milk from mammary gland, contraction of uterus during birth
Reduction of urine secretion by kidney
Anterior pituitary gland
Follicle stimulating hormone (FSH)
Luteinising hormone (LH)
Prolactin
Thyroid stimulating hormone (TSH)
Adrenocorticotrophic hormone (ACTH or corticotrophin)
Growth hormone (GH)
In male, stimulate spermatogenesis
In female, growth of ovarian follicles
In male testosterone secretion
In female secretion of oestrogen and progesterone, ovulation and maintenance of corpus luteum
Stimulates milk production and secretion
Synthesis and secretion of thyroid hormones growth of thyroid glands.
Synthesis and secretion of adrenal cortex hormones growth of gland
Protein synthesis, growth, especially of bone of limbs
Parathyroid gland
Parathormone
Increases blood calcium level
Decreases blood phosphate level
Thyroid gland
Triiodothyronine (T3)and thyroxine (T4)
Calcitonin
Regulation of basal metabolic rate, growth and development
Decreases blood calcium level
Adrenal cortex
Glucocorticoids (cortisol)
Mineralocorticoids (aldosterone)
Protein breakdown, glucose/glycogen synthesis,adaptation to stress, anti-inflammatory/allergy effects
Na+ retention in kidney, Na+ and K+ ratios in extracellular and intracellular fluids, raises blood pressure
Adrenal medulla
Adrenaline (epinephrine)
Noradrenaline (norepinephrine)
Increase rate and force of heartbeat, constriction of skin and gut capillaries
Dilation of arterioles of heart and skeletal muscles, raising blood glucose level
General constriction of small arteries, raising of blood pressure
Islets of Langerhans
Insulin (beta cells)
Glucagon (alpha cells)
Decreases blood glucose level, increases glucose and amino acid uptake and utilisation by cells
Increases blood glucose level, breakdown of glucogen to glucose in liver
stomach
Duodenum
Gastrin
Secretin
Cholecystokinin (Pancreozymin)
Secretion of gastric juices
Secretion of pancreatic juice
Inhibits gastric secretion
Emptying of gall bladder and release of pancreatic juice in to duodenum
Kidney
Ovary
Renin
Oestrogens(17 Beta-oestradiol)
Progesterone
Conversion of angiotensinogen into angiotensin
Female secondary sex characteristics, oestrous cycle
Gestation, inhibition of ovulation
Corpus luteum
Progesterone and oestrogen
Progesterone ans oestrogen
Growth and development of uterus
Foetal development
Placenta
Chorionic gonadotrophin
Human placental lactogen
Maintenance of corpus luteum
Stimulates mammary growth
Testis
Testosterone
Male secondary sexual characteristics

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