KIN 272 Lecture Notes - Lecture 1: Tunica Externa, Tunica Media, Pulmonary Vein

61 views5 pages

Document Summary

Flow slows down from elastic to capillary because there is a larger area to cover. Tunica intima is bigger than tunica media sometimes or not even seen; mostly collagen fibers and some elastic. No smooth muscle 90%, have like 1-4% smooth muscle- (cid:272)a(cid:374)"t reall(cid:455) (cid:272)o(cid:374)tra(cid:272)t or (cid:272)ha(cid:374)ge; (cid:373)ai(cid:374) difference between arteries and veins. Have one way valve: allows blood to move in one direction and shuts when try to go backwards; no smooth muscle to dictate flow so valve is present. Oval shaped because no muscle cells to form well structure: veinules, extensions of the capillary, small veins, medium veins, vena cava. Total peripheral resistance (tpr) anything in the periphery outside the heart that causes opposition to flow: push back blood to the heart and causes heart to work harder. Laminar flow: fluid is moving through tube unrestricted, moving in good phase, has a parabolic shape: fluid in the middle travels faster while the fluid touching the side move slower.

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers

Related Documents