AN SC 431 Sept 2
Order by
16 terms
Terms | Definitions |
|---|---|
 forms of GnRH (3) | 1. hypothalamic (GnRH1) 2. midbrain (GnRH2) 3. Telencephalic (GnRH3) |
| prostaglandins mode of action | autocrine → function within the cells that synthesize them |
| structure of prostaglandins | unsaturated carboxylic acids: 20-C skeleton with 5-member ring |
| prostaglandins are synthesized from what precursor? | Arachidonic Acid |
| Examples of types of prostaglandins (3) | 1. PG I2 2. PG E2 3. PG F2 |
| PG I2 causes... (2) | 1. dilation of bronchioles 2. vasodilation |
| PG E2 causes... (3) | 1. uterine contractions during pregnancy 2. GI tract contractions or relaxation 3. bronchiole contraction or dilation **action depends on specific receptor |
| PG F2 causes (2) | 1. CL regression 2. smooth muscle contractions |
| prostaglandins & the inflammatory response | cause pain/fever |
| thromboxanes | type of PG that stimulates constriction & clotting of platelets. PGI2 has an opposite effect |
| Aspirin & Prostaglandins | Aspirin blocks the cyclooxygenase enzymes → COX involved with conversion of arachidonic acid to PG → acetyl group on aspirin binds & blocks the channel in the enzyme & arachidonic acid cannot enter the active site of the enzyme → blocks synthesis of PGs (blocks pain response, but also inhibits PG pathway that causes blood clotting) |
| pheromone | chemical produced by an organism that signals its presence to other members of the same species |
| what organ senses pheromones? | Vomeronasal organ (a.k.a. Jacobson's organ) → small sac on either side of the nasal septum |
| animal behavior associated with pheromone detection | Flehmen's response (lip curl) |
| pheromones can be secreted via... (5) | 1. urine 2. feces 3. prepuce (boar) 4. vagina 5. other glands |
| role of pheromones (3) | 1. indicate estrous cycle stage 2. stimulate estrual behavior in female 3. indicate time elapsed since presence of animal |
First Time Here?
Welcome to Quizlet, a fun, free place to study. Try these flashcards, find others to study, or make your own.