Control Of Heart Rate Flashcards

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1
Q

Describe steps for speeding up the heart rate

A
  1. Chemoreceptors (carotid body, aortic body)
  2. Nerve impulses
  3. Cardiovascular centre in medulla oblongata
  4. Nerve impulses
  5. Sympathetic nerve
  6. Nerve impulses
  7. Sinoatrial node or heart
  8. Heart rate speeds up
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2
Q

Describe the steps for slowing down heart rate

A
  1. Baroreceptors (carotid sinuses, aortic arch)
  2. Nerve impulses
  3. Cardiovascular centre in the medulla oblongata
  4. Nerve impulses
  5. Parasympathetic nerve
  6. Nerve Impulses
  7. Sinoatrial node of the heart
  8. Heart rate slows down
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3
Q

What is the mode of heart rate resting?

A

Rest and digest

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4
Q

What is the mode of the heart rate increasing?

A

Fight or flight

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