Presentation on theme: "HUMAN ENDOCRINE GLANDS"— Presentation transcript:
1HUMAN ENDOCRINE GLANDS “Out of the gland and into the blood to target cell we go”1
2HYPOTHALAMUS ATTACHED TO PITUITARY CONTROLS SECRETIONS OF PITUITARY INTERACTS WITH NERVOUS SYSTEMTHIS ENSURES BOTH SYSTEMS CAN WORK TOGETHER TO COORDINATE BODY ACTIVITES!THEREFORE, CONTROL CENTER OF ENDOCRINE SYSTEM!
3PITUITARY GLAND FOUND AT BASE OF SKULL SECRETES 9 HORMONES!!!!!! REGULATE BODY FUNCTIONSEX: HGH (HUMAN GROWTH HORMONE)TOO MUCH = GIANTISMTOO LITTLE = DWARFISMREGULATE OTHER ENDOCRINE GLANDS
4THYROID AND PARATHYROID FOUND IN THROATTHYROIDREGULATES BODY’S CELL METABOLISMHORMONE = THYROXINEPARATHYROIDREGULATES BLOOD CALCIUM LEVELSHORMONE = PTH
5ADRENAL GLAND FOUND ON KIDNEYS HELP PREPARE AND DEAL WITH STRESS “FIGHT OR FLIGHT”HORMONE = ADRENALINEINCREASE HEART RATE AND BLOOD PRESSUREINCREASES OXYGEN INTAKE (LARGER AIRWAYS)INCREASES GLUCOSE LEVEL
6PANCREAS LOCATED NEXT TO STOMACH ISLETS OF LANGERHANS: HORMONE PRODUCING AREA OF PANCREASHORMONES RELEASED (COMPLEMENTARY):INSULIN: REMOVES SUGAR FROM BLOODGLUCAGON: STIMULATES LIVER TO BREAK DOWN GLYCOGEN TO PUT GLUCOSE BACK IN BLOOD
8GONADS PRODUCE SEX CELLS (GAMETES) AND SECRETE SEX HORMONES TESTES: MALEPRODUCE SPERMSECRETE TESTOSTERONEOVARIES: FEMALEPRODUCE EGGS (OVA)SECRETE ESTROGEN AND PROGESTERONE
9Figure 39–2 The Endocrine Glands Section 39-1HypothalamusThe hypothalamus makes hormones that control the pituitary gland. In addition, it makes hormones that are stored in the pituitary gland.Pineal glandThe pineal gland releases melatonin, which is involved in rhythmic activities, such as daily sleep-wake cycles.ThyroidThe thyroid produces thyroxine, which regulates metabolism.Pituitary glandThe pituitary gland produces hormones that regulate many of the other endocrine glands.PancreasThe pancreas produces insulin and glucagon, which regulate the level of glucose in the blood.Parathyroid glandsThese four glands release parathyroid hormone, which regulate the level of calcium in the blood.OvaryThe ovaries produce estrogen and progesterone. Estrogen is required for the development of secondary sex characteristics and for the development of eggs. Progesterone prepares the uterus for a fertilized egg.ThymusDuring childhood, the thymus releases thymosin, which stimulates Tcell development.TestisThe testes produce testosterone, which is responsible for sperm production and the development of male secondary sex characteristicsAdrenal glandsThe adrenal glands release epinephrine and nonepinephrine, which help the body deal with stress.