Aorta

Front 1

Arteries

Back 1

Front 2

Tunica intima

Back 2

Inner layer of artery, consists of endothelial cells that line the lumen

Front 3

Tunica media

Back 3

Middle layer of artery, smooth muscle fibers, elastic

Front 4

Tunica adventitia

Back 4

External layer, loose connective tissue

Front 5

Vasa Vasorum

Back 5

Comprised of tiny arteries and veins that supply the walls of the blood vessels

Front 6

Arteries vs Veins

Back 6

Arteries have hollow elastic tubes criticle for steady blood flow, Veins have little elastic tissue/muscle which make them collapseable

Front 7

Aorta

Back 7

Largest major artery in the body

Front 8

Capillaries

Back 8

Minute hair sized vessels connecting the venous and arterial system, walls single layer, nutrients and waste exchange here.

Front 9

Ascending aorta 3 branches

Back 9

Brachiocephalic trunk (rcca, rsa), left common Carotid artery, left subclavian artery.

Front 10

Depending aorta

Back 10

Enters the abdomen through the aortic opening of the diaphragm anterior to the 12th thoracic vertebrae

Front 11

Abdominal aorta

Back 11

Posterior to the left love of the liver, diameter 2-3cm and 1-1.5 at tapering

Front 12

Common iliac arteries

Back 12

Front 13

Major arteries inferior to the heart

Back 13

Front 14

Celiac trunk

Back 14

2cm from diaphragm, arises anteriorly and branches into the common hepatic, lft gastric and splenic arteries

Front 15

CHA

Back 15

Common Hepatic Artery, courses at a 90° angle and branches into proper hepatic and gastroduodenal artery.

Front 16

GDA

Back 16

Gastroduodenal artery, courses along the upper border of the head of the pancreas to the Superior portion of the duodenum

Front 17

LHA

Back 17

Left hepatic artery, supplies blood to the caudate love and left lobe of liver

Front 18

RHA

Back 18

Right hepatic artery, supplies blood to the GB and and right lobe of the liver

Front 19

Left gastric artery

Back 19

Anterior to the left of the esophagus and courses along the lesser curvature of the stomach to supply blood to these structures

Front 20

Splenic artery

Back 20

Largest vessel in the celiac trunk, tortuous along the Superior portion of the pancreas, supplies blood to the spleen and stomach

Front 21

SMA

Back 21

Superior Mesenteric Artery arises 1 cm below the celiac artery, posterior to pancreas, follows parallel course along abdominal aorta.

Front 22

SMA 5 branches

Back 22

Inferior pancreatic artery, duodenal artery, colic artery, ileocolic artery, intestinal artery

Front 23

IMA

Back 23

Inferior Mesenteric Artery, supplies the descending colon, sigmoid and Superior rectal arteries. Difficult to visualize with ultrasound. Courses to the left around 3-4th lumbar vertebrae

Front 24

Phrenic arteries

Back 24

Paired, small vessels, arises laterally and supplies the diaphragm

Front 25

Renal arteries

Back 25

Sits just below the SMA, divides into anterior and inferior renal arteries at kidney, duplication is not uncommon, RRA is longer than the LRA and courses posterior to the IFC.

Front 26

Gonadal arteries

Back 26

Arises inferior to the renal artery

Front 27

Lumbar arteries

Back 27

4cm on each side of the aorta, travel laterally and posteriorly, supplies muscle skin, bone, and spinal cord.

Front 28

Ultrasound of the Aorta

Back 28