Control Of Heart Rate Flashcards
1
Q
Describe steps for speeding up the heart rate
A
- Chemoreceptors (carotid body, aortic body)
- Nerve impulses
- Cardiovascular centre in medulla oblongata
- Nerve impulses
- Sympathetic nerve
- Nerve impulses
- Sinoatrial node or heart
- Heart rate speeds up
2
Q
Describe the steps for slowing down heart rate
A
- Baroreceptors (carotid sinuses, aortic arch)
- Nerve impulses
- Cardiovascular centre in the medulla oblongata
- Nerve impulses
- Parasympathetic nerve
- Nerve Impulses
- Sinoatrial node of the heart
- Heart rate slows down
3
Q
What is the mode of heart rate resting?
A
Rest and digest
4
Q
What is the mode of the heart rate increasing?
A
Fight or flight