Arteries

Question 1

tunica intima

Answer 1

inner most layer composed of an endothelium and subendothelial layer made up of a thin areolar connective tissue layer

Question 2

tunica media

Answer 2

Middle layer, composed of circularly arranged, smooth muscle with external elastic laminator layer.
Thickest layer in arteries
Innovation to this layer (para/sympathetic) causes the small muscle to contract or relax

Question 3

tunica externa

Answer 3

Outermost layer, areolar CT that contains collagen and elastic fibers
Helps anchor vessels to other structures

Question 4

arteries

Answer 4

Thick, thick muscular layer, no valves

Question 5

veins

Answer 5

thicker tunica externa
valves: help keep blood from pulling in extremities. Keep blood moving back towards the heart.

Question 6

capillaries

Answer 6

Composed of a membrane and endothelium
Very thin to promote fast gas exchange

Question 7

list the artery progression

Answer 7

artery (elastic)– artery (muscular)– arteriole– capillary

Question 8

Arteriole

Answer 8

Very small artery before it loses artery and connects to capillary bed

Question 9

vein progression

Answer 9

Very small that gathers blood after blood passes through a capillary
bed network– venule– small to med size vein– large vein (SVC, IVC)

Question 10

capillary progression

Answer 10

Terminal arteriole branches into many capillaries that connect together to create a network of vessels. They eventually turn into one vessel that drains into a capillary vein.

Question 11

list the circulation of arteries

Branches off the heart

ABCs

Answer 11

Aorta, brachiocephalic trunk, common carotid (left) artery, subclavian (left) artery

Question 12

what is the aorta

Answer 12

First major artery branch off the heart

Question 13

Brachiocephalic trunk

Answer 13

Right upper extremity branch, branches into the right subclavian and right common carotid arteries

Question 14

Common carotid (left) artery

Answer 14

Blood supply to left side of head

Question 15

Subclavian (left) artery

Answer 15

Blood supply to left upper extremity

Question 16

Name the arteries to the head and neck

Answer 16

common carotid artery, internal carotid artery, external carotid artery, subclavian artery

Question 17

what is the common carotid artery

Answer 17

Divides into the internal and external carotid arteries

Question 18

What is the internal carotid artery?

Answer 18

Travel up into the brain through the carotid canal in the skull

Question 19

What is the external carotid artery?

Answer 19

Has eight branches that apply the neck and face/ head

Question 20

What is the subclavian artery?

Answer 20

Has four branches (paired) three are to head and neck