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Download BY 124 Worksheet #16 Answers Short Answer Questions What
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Transcript
BY 124 Worksheet #16 Answers Short Answer Questions 1. What hormones does the hypothalamus make? What hormones does the posterior pituitary make? Posterior pituitary does not make hormones, hypothalamus makes hormones and are stored and released by posterior pituitary glands o Hypothalamus produces ADH (kidney tubules) and oxytocin ADH: antidiuertic hormone: pulls water back into body Dierutic: makes you urinate Oxytocin: mammary glands, milk to come into ducts when baby nurses, uterine muscles are released at birth (causes contraction that pushes the baby out) Means swift birth o Males do have oxytocinimportant in testes because it causes muscle contractionmove sperm through testes so it can be ejaculated 2. How does epinephrine affect intestinal blood vessels? Alpha receptor and not beta receptorephinephrine causes skeletal muscles to dilate and intestinal blood vessels to constrict o Depends on if you have the receptor or not o Causes different responses in cell types 3. What are all the hormones produced by the anterior pituitary gland? FLATPiG FSH, LH, ACTH, TSH, Prolactin, GH 4. What are trophic hormones and which hormones from #3 classify as such? Trophic effect: hormone that goes to another gland and makes that gland release o FSH: follicle stimulating hormone o LH: leutenizing hormone o TSH: goes to thyroid and tells thyroid release thyroid hormones o ACTH: adreno cortico trophic hormone Not trophic effects: o Prolactin: makes milk and oxytocin lets the milk down Something to do with lactation Nontrophic and trophic effects: o GH: growth hormone Works directly on cells of body to do mitosismakes you grow Works on bones and cells Works on liver to produce insulin like growth factorswhy it has trophic effects 5. How does the adrenal gland function? Adrenal gland has 2 parts: adrenal medella and adrenal coretex o Works on adrenal cortex and tells it to release its hormones o The cortex mainly produces cortisol, aldosterone and androgens, while the inner medulla chiefly produces adrenaline and noradrenaline. 6. What is a disease associated with the growth hormone? Acromegaly: level of growth hormone decreases as you start to grow o Don't need that much of it when you are older Sometimes little children didn't make growth hormonessomeone had to donate anterior pituitary to you (when someone diesdonate) o Now, due to genetic engineering Tumor and other things that will make you produce large amounts of GH after you have already stop growing o Only certain parts of body that respond to GH after you start growing: Jaws, brow ridges, fingers, toesdistinct facial expression