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31 Cards in this Set
- Front
- Back
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What does the endocrine system do?
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Secretes and produces hormones
-has target cells where hormones work |
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Pituitary gland
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Sella turcica, infundibulum, adenohypophysis, neurohypophysis
-Stimulates growth of target organs, secretion of other hormones, uterine contractions |
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Thyroid gland
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Increases metablolism and lower plasma calcium levels
-lower neck, controls metabolism and calcium ion levels |
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Parathyroid Gland
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Increases plasma calcium levels - bring calcium up
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Adrenal Glands
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Adrenal cortex and Adrenal medulla
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Adrenal cortex
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regulates metablolism, especially during stress - hormone producing
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Adrenal medulla
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Enhances "fight or flight" response
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Pancrease
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Controls blood glucose - looks like sac of cottege cheese - exocrine for intesteins
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Pineal Gland
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Circandian rhythm - epithelmic, produces melatonin, syclic activity, sleep and wake patterns
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Thymus
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Maturation of T lymphocytes - deteriorates at 13
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Gonads (Testes and Ovaries)
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Maintain reproductive organs - produce hormones
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Functions of the blood?
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Transports, regulates ph, protects with wbcs and platelets
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Elements of blood
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hematocrit wbcs, rbcs, platelets
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Plasma
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Liquid portion of blood, 92% H2O - polar substance, ions, nutrients(glucose, aa's, fats, and vitamins, wastes (urea, and uric acid). oxygen and co2, proteins
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Erythrocytes
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red blood cells, lack nucleus, biconcave discs, cytoplasm is packed with hemoglobin, 98% iron, carry o2 and co2
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Albumins
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Osmotic gradient - 60%
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Globulins
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30% alpha, beta, gama
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Leukocytes
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White blood cells(live 120 days), defense against disease
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5 Types of leukocytes?
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Neutrophils, eosinophils, basophils, monocytes, lymphocytes.
-Never let monkeys eat bananas |
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Neutrophils
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First on site of infection - phagocitosis - pac man - clean up
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Eosinophils
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muliply for allergic reaction - work on parasitic infection
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Basophils
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Produce, store and secrete histamine and hepherine - anti blood clotting
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Monocytes
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Come out of red bone marrow
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Lymphocytes
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Specific immune system - attack invaders
-T Cells -B Cells -NK Cells -B Cells |
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T Cells
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Kills bad cells
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B Cells
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Make antibodies
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NK Cells
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Master control cells
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Macrophages
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Carry out phagocitosys
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Platelets
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Cell fragments, help initiate blood clotting - hemostasis
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Hemopoiesis
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Occurs in red bone marrow
-kidneys control - know how much needs to be produced -thrombus - blood clot |
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Thrombus
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Blood Clot
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