45.1 Multiple Effects of Hormones Flashcards

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1
Q

epinephrine multiple responses to hormone

A

1) liver cell
- glycogen break down and release
2) skeletal muscle
- vessel dilates -inactivates an enzymes
3) intestines
- smooth muscle contraction -restricted blood flow

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2
Q

how do affects vary

A
  • location
  • type of target cell
  • species difference
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3
Q

local regulators

A

act on target cell quickly

  • cytokines: polypeptide local regulator - immune responses
  • Growth Factors: stimulate cell proliferation/differentiation
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4
Q

Nitric oxide (NO)

A

local regulator/ neurotransmitter

  • released when O2 levels fall
  • activates enzyme that relaxes nearby smooth muscle making vasodilation (more blood flow to tissues)
  • blood flow to the male part
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5
Q

prostaglandins

A

modified fatty acids

  • in semen
  • when it reaches reproductive tract in female, it causes uterine wall to contract and let sperm get to egg easier
  • in the immune system, promote fever, inflammation, and pain

aspirin stops inflammation and pain
by inhibiting prostaglandin production

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