Food regulation and Sleep

Edit Answers
12345678910111213141516171819202122
Across
  1. 3. The stimulus that resets a circadian rhythm, such as light, is referred to as a _____.
  2. 6. This word means "around a day"
  3. 8. Animals can change their behavior and physiology to maintain homeostasis, and these changes are referred to as ______.
  4. 9. The hormone that increases sleepiness.
  5. 12. Mice with a _____ deficiency become obese, because this hormone is essential for controlling hunger.
  6. 13. Retinal ganglion cells that have their own photopigment and respond directly to light, independent of rods and cones.
  7. 15. The _____ path involves a small portion of the optic nerve that extends directly from the retina to the SCN.
  8. 16. Humans' optimal internal temperature is 98.6 degrees Fahrenheit. This temperature is referred to as a ____.
  9. 17. ____ is the hormone that stimulates NPY hunger Neurons to increase appetite
  10. 18. The optimal RANGE of body temperature is referred to as a ______.
  11. 20. ____ neurons are also referred to as satiety neurons because they inhibit appetite and increase metabolism.
  12. 21. ____ neurons are also known as hunger neurons because they stimulate appetite and reduce hunger.
  13. 22. The _____ is critically important for maintaining a 24-hour long circadian rhythm.
Down
  1. 1. ______ and histamines are delivered to your system so your body temperature doesn’t get too high.
  2. 2. Body temperature is regulated by the ____ area of the hypothalamus, as well as the brain stem and spinal cord.
  3. 4. The ______ nucleus is the brain region that serves as the biological clock and keeps circadian rhythms to a 24 hour period.
  4. 5. When animals maintain a biological rhythm without external cues (like the time of day), this is referred to as _____.
  5. 7. Humans are _____ because they are capable of internally regulating their temperature
  6. 10. The _____ system is a major regulator of appetite and feeding. This system can also explain why endocannabinoids stimulate hunger.
  7. 11. _____ is a peptide released by the gut after feeding and acts on the vagus nerve to inhibit appetite.
  8. 14. Circadian rhythms are _____ because they will occur even without outside stimulation.
  9. 19. Snakes are _____ because they are incapable of generating their own heat and rely on external sources of heat.