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A cell, tissue or an organ which secretes useful chemicals required for various functions of the body are called a Gland, The excessive secretion of the harmones by an endocrine gland is called Hyper secretion, The inadequate secretion of the harmones by an endocrine gland is called Hypo secretion, A pea shaped gland located beneath the hypothalamus in a body cavity at the base of the brain is called Pituitary gland, Pituitary harmone is also called as Growth harmone,

The abnormally short stature due to the under secretion of growth harmone is called Dwarfism, The abnormally long stature due to the over secretion of growth harmone is called Gigantism, The disease caused by the excessive secretion of growth harmone in adults by pituitary gland is called Acromegaly, Thyroid gland is located close to the trachea in the neck, The harmone secreted by thyroid gland consisting of amino acid in combination with iodine is called Thyroxin, Thyroxin is also called as Personality harmone,

The under section of thyroxin by the thyroid gland is called Hypothyroidism, The disease characterized by swelling in the neck due to the enlargement of the thyroid gland is called Simple goiter, A very low output of thyroxin by the thyroid gland in a new born baby leads to a disease Cretinism, The excessive secretion of thyroxin by thyroid gland due to the over activity of the thyroid gland is called Hyperthyroidism, The parathyroid glands are situated in the tissues of the thyroid gland, The harmone secreted by the parathyroid glands is Parathromone, Adrenal glands are located at the top of the kidneys,

The harmone secreted by the adrenal cortex is Cortisone, The harmones secreted by the adrenal medulla are Adrenaline, Noradrenaline and Dopamine, The important harmone secreted by the medulla of the adrenal gland is Adrenaline, A small group of cells of the endocrine pancrease are together called Islet of Langerhans, The sex harmones secreted by testis are called Androgens, The male gonad is called Testis, The female gonad is called Ovary, The most common male sex harmone is Testosterone, The sex harmones secreted by ovary is called Estrogens, A female sex harmone produced by corpus luteum of the ovary is called Progesterone,

The most common female sex harmone is Estradiol, The harmone that converts glucose into glycogen is Insulin, The harmone produced by the endocrine pancrease is Glucagon, The part of the brain that is concerned with the maintenance of the balance of the body is Cerebellum, The quick response to stimulus produced without the involvement of the brain is called Reflex action, The transparent covering in front of the eye is called Conjunctiva, Ear is the sense organ in which the bone called Stirrup is associated, The ability of the eye to adjust its focal length is called Power of accommodation, The number of cranial nerves in human beings are 12,

The screen of the eye is called Retina, The glands that produce tears are Lachrymal glands, The type of lens used to rectify Astigmatism is Cylindrical lens, The receptor cells that are responsible for colored vision is Cone cells, The fluid filled in the chamber between the cornea and the eye lens is called Aqueous humour, The part of the ear that converts sound waves into electrical signals is organ of corti, The fluid that surrounds the inner ear is Perilymph, The number of parathyroid glands in our body are 4, Adrenal gland is also called as Suprarenal gland, The chemical messengers in our body are Harmones, The harmone that is often called the emergency harmone is Adrenaline, The organs on which harmones act are Target organs, The structure that controls reflex action is Spinal cord


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