L12: Control of Breathing & pH Flashcards
(9 cards)
1
Q
A
2
Q
Where is breathing initated and acting on?
A
Initiated in the medulla
Acting on the respiratory muscles
3
Q
What is the main respiratory muscle? and what is it stimulated by?
A
Diaphragm, stimulated by PHRENIC nerves via brain stem
4
Q
What muscles assist in breathing? what are they innnervated by?
A
Intercostal muscles, innervated by segmental spinal nerves
5
Q
2 groups in the medullary respiratory centre
A
1) Dorsal Respiratory Group
2) Ventral Respiratory Group
6
Q
What muscles does the dorsal respiratory group contain? and what does it generate?
A
Contain inspiratory muscles, and generates spontaneous rhythmic bursts of AP
7
Q
What muscles do the ventral respiratory group contain? and when is it active?
A
Contains expiratory muscles, active during forced expiration
8
Q
A
9
Q
A
