The Circulatory System Flashcards
1
Q
Pulmonary circulation
A
Through the lungs to oxygenate blood
2
Q
Peripheral circulation
A
- via arteries to deliver oxygen & other nutrients to the tissues
- collect waste metabolites via veins
3
Q
What 3 structures are present in vessel walls?
A
- Tunica externa (adventitia)
- Tunica media
- Tunica intima (interna)
4
Q
Tunica externa (or adventitia)
A
Outermost layer made up of loose connective tissue
5
Q
Tunica media
A
Middle layer made up of smooth muscle, collagen, some elastic tissue
6
Q
Tunica intima (interna)
A
Smooth inner layer of simple squamous endothelium to be a selectively permeable barrier that usually repels blood cells and platelets
