Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
10 Cards in this Set
- Front
- Back
|
3 types of cardiovascular blood vessels |
Arteries- carry blood away from heart Capillaries- permit exchange of materials with tissues Veins- carry blood toward the heart |
|
|
What are all blood vessels lined with? |
Endothelium |
|
|
What are the 3 layers of arteries? |
Tunica externa - outer elastic connective tissue Tunica media - middle smooth muscle Tunica intima - endothelium |
|
|
Arterioles |
Small arteries that lead to capillaries (constriction increased BP, dilation lowers) |
|
|
Largest artery in the human body |
Aorta |
|
|
Vasodilation |
Decreases BP |
|
|
Vasoconstriction |
Increases BP |
|
|
What are organized networks of capillaries called? |
Capillary beds |
|
|
What diffuses in and what diffuses out of capillaries? |
Oxygen & nutrients out Wastes & carbon dioxide in |
|
|
Where does the blood from capillaries flow? |
Into venules |
