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HUMAN ENDOCRINE GLANDS Out of the gland and into the blood to target cell we go.

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Presentation on theme: "HUMAN ENDOCRINE GLANDS Out of the gland and into the blood to target cell we go."— Presentation transcript:

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2 HUMAN ENDOCRINE GLANDS Out of the gland and into the blood to target cell we go

3 HYPOTHALAMUS ATTACHED TO PITUITARY CONTROLS SECRETIONS OF PITUITARY INTERACTS WITH NERVOUS SYSTEM –THIS ENSURES BOTH SYSTEMS CAN WORK TOGETHER TO COORDINATE BODY ACTIVITES! –THEREFORE, CONTROL CENTER OF ENDOCRINE SYSTEM!

4 PITUITARY GLAND PITUITARY GLAND FOUND AT BASE OF SKULL SECRETES 9 HORMONES!!!!!! –REGULATE BODY FUNCTIONS EX: HGH (HUMAN GROWTH HORMONE) –TOO MUCH = GIANTISM –TOO LITTLE = DWARFISM –REGULATE OTHER ENDOCRINE GLANDS

5 THYROIDTHYROID AND PARATHYROID PARATHYROID THYROIDPARATHYROID FOUND IN THROAT THYROID –REGULATES BODYS CELL METABOLISM –HORMONE = THYROXINE PARATHYROID –REGULATES BLOOD CALCIUM LEVELS –HORMONE = PTH

6 ADRENAL GLAND ADRENAL GLAND FOUND ON KIDNEYS HELP PREPARE AND DEAL WITH STRESS –FIGHT OR FLIGHT HORMONE = ADRENALINE –INCREASE HEART RATE AND BLOOD PRESSURE –INCREASES OXYGEN INTAKE (LARGER AIRWAYS) –INCREASES GLUCOSE LEVEL

7 PANCREAS LOCATED NEXT TO STOMACH ISLETS OF LANGERHANS: HORMONE PRODUCING AREA OF PANCREAS HORMONES RELEASED (COMPLEMENTARY): –I–INSULIN: REMOVES SUGAR FROM BLOOD –G–GLUCAGON: STIMULATES LIVER TO BREAK DOWN GLYCOGEN TO PUT GLUCOSE BACK IN BLOOD

8 Diagram of Glucose Feedback

9 GONADS PRODUCE SEX CELLS (GAMETES) AND SECRETE SEX HORMONES TESTES: MALE – PRODUCE SPERM – SECRETE TESTOSTERONE OVARIES: FEMALE –PRODUCE EGGS (OVA) –SECRETE ESTROGEN AND PROGESTERONE

10 Hypothalamus The hypothalamus makes hormones that control the pituitary gland. In addition, it makes hormones that are stored in the pituitary gland. Pituitary gland The pituitary gland produces hormones that regulate many of the other endocrine glands. Parathyroid glands These four glands release parathyroid hormone, which regulate the level of calcium in the blood. Thymus During childhood, the thymus releases thymosin, which stimulates Tcell development. Adrenal glands The adrenal glands release epinephrine and nonepinephrine, which help the body deal with stress. Pineal gland The pineal gland releases melatonin, which is involved in rhythmic activities, such as daily sleep- wake cycles. Thyroid The thyroid produces thyroxine, which regulates metabolism. Pancreas The pancreas produces insulin and glucagon, which regulate the level of glucose in the blood. Ovary The 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. Testis The testes produce testosterone, which is responsible for sperm production and the development of male secondary sex characteristics Section 39-1 Figure 39–2 The Endocrine Glands


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