Across
- 5. chemical released by the hypothalamus with widespread excitatory effects
- 8. rhythms that operate on a (roughly) 24 hour cycle
- 10. cells in the retina that produce melanopsin in response to light
- 11. increased light activates the SCN and inhibits the release of ______ by the pineal gland
- 12. initial site of nutritional absorption
- 15. Often referred to as the body's internal clock
- 17. thirst resulting from fluid loss
- 19. primary type of fuel used by the brain
- 21. body temp maintained via physiological mechanisms
- 22. thirst resulting from increased dietary sodium
- 23. cranial nerve that conveys satiety signals to the CNS
- 24. vasopressin is a hormone released by the posterior ____ in response to dehydration
Down
- 1. peptide released by fat cells- low levels increase hunger
- 2. neuropeptide implicated in both hunger and wakefulness by impacting arousal
- 3. rhythms that operate on a yearly cycle (e.g., migration)
- 4. stimulus that resets circadian rhythms
- 6. hormone that facilitates glucose entry to cells
- 7. inhibitory neurotransmitter essential for sleep
- 9. maintaining ______ may be the ultimate function of the brain
- 13. body temp matches outside environment
- 14. one of the places excess glucose is stored
- 16. one way endothermic animals reduce body temp
- 18. area of the brain that detects osmotic pressure (abbreviation)
- 20. hormone implicated in satiety (abbreviation)