Muscles of Respiration_ Physiology Flashcards
1
Q
What are the types of pleural linings?
A
Parietal pleurae
visceral pleurae
2
Q
What is parietal pleurae?
A
thoracic linings and attaches to the chest wall
3
Q
What is visceral pleurae?
A
encases the lungs
inner layer of the lungs, blood vessels, nerves and bronchi
4
Q
What is the purpose of the cuiboidal cells?
A
produces a mucous solution and is released b/t the visceral/parietal linings
provides a gliding substances of the lungs in the thorax (so the lungs don’t stick to the linings
5
Q
What is the primary muscle for respiration?
A
the diaphragm
6
Q
What are main characteristics or components of the diaphragm?
A
- separates thorax from abdomen
- central tendon = center of the diaphragm
- phrenic nerve of the ANS = bilateral innervation from the spinal nerves C3-C4-C5
7
Q
Where is the diaphragm attached at? (3 parts)
A
- xiphoid process
- ribs 7-11
- lumbar vertebrae
8
Q
What happens when the diaphragm contacts?
A
It expands the lungs
