A&P2-ClassNotes P49 & 50 Endocrine #5/Test 3
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| The GONADS include: | OVARIES & TESTES
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| GONADS are glands that: | produce both hormones and gametes
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| OVARIES - ESTROGENS: | Used for the production of ova & progesterone & for maint of ova
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| Relaxin is an additional: | female hormone
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| TESTES-TESTOSTERONE: | which is used to create male body features & also for the production of sperm
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| Testes also produce: | INHIBIN, which inhibits secretion of FSH
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| INHIBIN slows the: | production of sperm cells
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| Pineal Gland-Gleal cells: | attached to rood of third ventricle
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| PINEALOCYTES: | secretory cells of the pineal gland
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| Pineal gland produces: | MELATONIN
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| The BIOLOGICAL CLOCK is regulated by: | melatonin
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| SCN (SUPRACHIASMATIC NUCLEI): | a pair of nuclei associated w /the biological clock mechanism;
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| The SCN is located: | One of these nuclei is present in each hemisphere, just behind & below the eyes
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| Melatonin is produced from: | the neurotransmitter SEROTONIN; it may play a role in sleep
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| The Pineal gland possibly produces: | other hormones - still unsure
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| Thymus Gland is large at: | birth and kicks into full gear during childhood
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| Describe thymus gland: | bilobed lymphatic structure located in superior mediastinum.
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| Thymus is postier to: | sternum & between the lungs.
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| Thymus gland produces: | T-cells & hormones
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| Hormones produced by thymus: 3 | THYMOSINS, THYMIC HUMORAL FACTOR (THF) AND THYMOPOIETIN
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| Not members but some endocrine functions are: | GI tract, Placenta, Heart, Kidneys & Skin
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| GI Tract produces: 4 | stomach gastrin, enteric (intestinal) gastrin, secretin and cholecystokinin (CCK)
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| Stomach gastrin is produced: | by stomach in response to undigested protein
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| Enteric gastrin produced by: | duodenum in response to undigested protein. Named because it mimics activity of stomach gastrin
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| Secretin is produced by: | duodenum. Stimulates the release of pancreatic buffers into the lumen of the small intestine
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| Cholecystokinin (CKK) AKA | PANCREOZYMIN; produced by duodenum;
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| What stimulates the gall bladder: | cholecytokinin
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| Placenta is part of: | life support sys for unborn
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| Human chorionic gonadotropin: | what they check for on a pregnancy test
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| Placenta also includes: | estrogens, progesterone and relaxin
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