Topic 14: Respiratory System - Blood Supply to the Lungs Flashcards
1
Q
What are the two routes of circulation to the lungs?
A
- Pulmonary
- Bronchial
2
Q
What is pulmonary circulation?
A
blood to be oxygenated
3
Q
What is Bronchial circulation? (2)
A
- subdivision of systemic
- blood to nourish lung tissue
4
Q
What does bronchial circulation include? (2)
A
- bronchial arteries
- arise from aorta (systemic)
note that blood here does end up in pulmonary circ.
5
Q
What occurs in bronchial circulation?
A
- carry oxygenated blood to lung tissues (ex. bronchi) except respiratory portion
6
Q
In bronchial circulation, where does returning blood to heart drain into? (2)
A
- bronchial vein (little blood) (to right atrium - systemic)
OR - pulmonary veins (most blood) (to left atrium - pulmonary)
7
Q
Please see diagram of bronchial circulation
A
note that pulmonary circulation is in previous units
