Confrol Of Heart Rate Flashcards
1
Q
Define the Medulla Oblongata
A
Region of the brain which controls heart rate
2
Q
Name the two centres in the medulla oblongata
A
- sympathetic NS
- parasympathetic NS
3
Q
Where do the sympathies and parasympathetic send impulses to?
A
SAN
4
Q
In both centres there are always impulses travelling, it is the ————- that changes
A
Frequency
5
Q
What are the sympathetic and parasympathetic NS part of?
A
Autonomous Nervous system
6
Q
What’s the role of the autonomous NS
A
Controls
7
Q
What is the autonomous NS split into?
A
- sympathetic
- parasympathetic
8
Q
What does the sympathetic do?
A
Stimulates heart rate ready for fight or flight
9
Q
What does the parasympathetic NS do?
A
slows down heart rate reducing levels back to normal
10
Q
What is the peripheral NS made up of?
A
- somatic NS
- autonomic Ns
11
Q
the cardiac muscle is _______
A
myogenic (requires no stimulus)
