Anatomy 5/6/7

Front 1

Angiology

Back 1

the study of the vessels that includes arteries,veins and lymph vessels

Front 2

Lumen

Back 2

hollow core which blood flows

Front 3

Arteries

Back 3

blood vessel that carries oxygenated blood away from the heart to a body part

Front 4

3 Coats (Tunica)

Back 4

1. Tunica Intima

2. Tunica media

3. Tunica adventitia

Front 5

Tunica Intima/Interna

Back 5

-inner most upper layer

-composed of endothelium

-lines inner surface of entire cardiovascular system

-comes in contact with blood

Front 6

Tunica Media

Back 6

-middle layer

-composed of smooth muscle and elastic fibers

-thickest of the 3 layers

Front 7

Tunica Adventitia/ externa

Back 7

-outer layer

- composed of fibrous connective tissue and some elastic tissue

-holds vessel open and prevents tearing

Front 8

Large sized / elastic arteries

Back 8

-conduct blood to arteries

-contains more elastic fibers then smooth

ex: aorta / common carotid / brachiocephalic

Front 9

Medium sized/ muscular / distributing arteries

Back 9

-distribute blood to various parts of the body

- more smooth then elastic

ex: axillary artery / radial artery / brachial artery

Front 10

medium sized artery

Vaso-Constriction

Back 10

make the lumen smaller

DECREASE lumen in size caused by contraction in smooth muscle of the wall by blood vessel

Front 11

medium sized artery

vaso- dialation

Back 11

make lumen layer

INCREASE in lumen size caused by relaxation of smooth muscle in wall of blood vessel

Front 12

Pulmonary trunk carries what kind of blood?

Back 12

CO2 (deox blood)

Front 13

Vein facts

Back 13

-run parallel to arteries

-have tributaries

-have valves

-have 2 sets of veins in the extremities , superficial and deep

Front 14

Arteriole Facts

Back 14

-are very small, minute arteries that deliver blood to the capillary

-3 coats

Front 15

Capillary

Back 15

microscopic blood vessel carries blood from the arteries to small veins (venukles)

Front 16

Venules ( venuoles)

Back 16

small veins that collect blood from the capillaries& drain it into the veins

-3 coats

tunica media - only a few scattered smooth muscle fibers

tunica adventitia - found only in larger venules

Front 17

Veins

Back 17

blood vessels that carry blood toward the heart from the body (CO2)

Front 18

Pulmonary veins

Back 18

one exception of veins that carry oxygenated blood from lungs to heart

Veins usually only carry CO2

Front 19

Vasa Vasorum

Back 19

blood vessels that supply blood

Front 20

Anastomosis

Back 20

provides an alternate route for end to end union of vessels

Joining together of blood vessels

Front 21

Collateral Circulation

Back 21

circulation of blood through secondary to bypass an obstruction in the main channel

Front 22

Venae comitantes

Back 22

vein accompanying an artery

Front 23

Bifurcation

Back 23

blood vessel splitting into 2 branches

Front 24

Trifurcation

Back 24

splits into 3 branches