Respiratory System Flashcards
1
Q
Breathing is ________ and ______ but it is ________ and continuously _______.
A
continuous, automatic, influenced, modulated.
2
Q
When is breathing modulated?
A
- when holding breath
- when swallowing (protective mechanism)
- vocalisation
3
Q
What does the recurrent laryngeal nerve innervate?
A
Upper airway muscles (control larynx through abduction and adduction).
4
Q
Subglottal pressure =
A
pressure below the larynx.
5
Q
When the phrenic nerve discharges (fires), the diagram ______.
A
contracts (goes down and expands the thorax as it does so).
6
Q
2 features of post-inspiration…
A
- phase where most modulation occurs
- important for increased gas exchange
7
Q
Where is the continuous column of respiratory neurons located?
A
From the pontine tegmentum to the origin of the spinal cord.
