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Lecture 12
Lecture 12: Endocrine System II
| Question | Answer |
|---|---|
| Anabolic Hormones | stimulates synthesis of proteins, glucose, and fat |
| Catabolic Hormones | stimulates the conversion of large, complex molecules into smaller ones |
| Trophic Hormones | hormones released by the anterior pituitary |
| Growth Hormone | helps cells incorporate amino acid to synthesize proteins, promotes organ and tissue growth |
| Hypersecretion of GH | before puberty: gigantism after puberty: longer extremities |
| Acromegaly | no longer bones but continued growth of extremitites |
| Hyposecretion of GH | before puberty: dwarfism after puberty: no effects |
| Thyroid Stimulating Hormone (TSH) | stimulates the thyroid gland to release T4 and T3 |
| Adrenocorticotropic hormone (ACTH) | stimulated by corticotropic releasing hormone (CRH) |
| Follicle stimulating hormone (FSH) | stimulates growth of ovarian follicles in females and sperm production in males |
| Luteinizing hormone (LH) | stimulates the production of gonadal hormones such as progesterone, estrogen, and testosterone |
| Gonadotropins | FSH and LH, absent in prepubescent children |
| Prolactin (PRL) | milk production in humans |
| Antidiuretic Hormone (ADH) | decreases urine output |
| Oxytocin | released during childbirth, increases uterin contraction though positive feedback |
| Adrenal Gland | composed of adrenal cortex and adrenal medulla |
| Glomerulosa | mineralcorticoids |
| Fasciculata | corticosteroids |
| Reticularis | adrenal androgens |
| Mineralcorticoids | regulate electrolyte concentration in extracellular fluids |
| Glucocorticoids | cortisol which helps body resist stress |
| Adrenal androgens | DHEA and A4 |
| Adrenal medulla | produces adrenaline and small amounts of noradrenaline |
| Sympathetic catecholaminergic | fight or flight response |