Bio psych test 2 part 1

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Bio psych test 2 part 1
2014-10-28 19:18:07

Biological psychology test 2 chapter 5
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  1. Pineal gland
    releases melatonin; seasonal changes, breading ability in animals; sleep initiation from decreased light signals
  2. Hypothalamus (what does it mediate)
    mediates both autonomic and endocrine functions
  3. Hypothalamus
    Oxytocin and vasopressin sent to the the posterior pituitary, releasing hormones (factors) that tell the pituitary what to synthesize and release
  4. What are the 3 neuroendocrine (hormone) glands
    Pineal gland, hypothalamus, and pituitary gland
  5. What is unique about steroid hormones in terms of signaling?
    Steroids are fatty so they can slip through the membrane and bind/activate receptor on the nucleus membrane or inside cell and then transported into the nucleus
  6. Compare/contrast hormones vs. neurotransmitters (both)
    require receptors (on cell membrane), can use second messenger systems, can activate intracellular enzymes
  7. Compare/contrast hormones vs. neurotransmitters (only hormones)
    require receptors and can bind on nucleus membrane

    have receptors anywhere in the body, are transported in the blood

    have more global effects (not as localized as neurotransmitters), and can change tissue anywhere in your body
  8. How do hormones signal another cell?
    Neuronal signal is transmitted to the next neuron, which, when the AP reached the terminal, releases hormones into the blood

    the hormone then reaches a target cell with appropriate receptors
  9. What exactly is a hormone?
    has slow, gradual effects, and can change subtle features (do not turn behavior on or off)

    hormones modify behaviors and behaviors can change hormone levels

    hormone levels go through circadian (change throughout the day), and they can only affect cells that have the specific receptors