EX. 32 PT. 2- Veins, Circulations

common iliac vein

internal iliac vein

external iliac vein

femoral vein

great saphenous vein

popliteal vein

small saphenous vein

anterior tibial vein

fibular vein

posterior tibial vein

dorsal venous arch

deep plantar arch (plantar venous arch)

digital veins

hepatic veins

inferior vena cava

right gonadal vein

external iliac vein

renal veins

lumbar veins

left gonadal vein

common iliac vein

internal iliac vein

external jugular vein

vertebral vein

internal jugular vein

brachiocephalic vein

subclavian vein

superior vena cava

right internal jugular vein

brachiocephalic veins

right subclavian vein

axillary vein

brachial vein

cephalic vein

basilic vein

internal jugular vein

external jugular vein

left subclavian vein

superior vena cava

inferior vena cava

ascending lumbar vein

median cubital vein

median antebrachial vein

cephalic vein

radial vein

basilic vein

ulnar vein

deep venous palmar arch

superficial venous palmar arch

digital veins

1. pulmonary trunk

2. right and left pulmonary arteries

3. three lobar arteries to right lung, and two lobar to left lung

4. right and left pulmonary veins

the functional blood supply of the lungs is provided by the

bronchial arteries,which diverge from the thoracic portion of the descending aorta (similar to coronary arteries)

pulmonary circulation

doesn’t serve lung tissue, thats the bronchial arteries from descending aorta

• arteries carry deoxygenated blood

• pulmonary veins carry oxygenated blood

• BP in pulm circulation is about 24/8

umbilical vein

carries blood rich in nutrients and oxygen to the fetus

• red in color

umbilical arteries

carry blood with carbon dioxide and waste from the fetus to the placenta

• blue in color

two shunting mechanisms of fetal circulation

1. much of the blood entering thru the right atrium is shunted into the left atrium thru the foramen ovale, a flaplike opening in interartrial septum, then left ventricle pumps blood thru aorta to systemic circulation.

2. blood that enters right ventricle and is pumped out of pulmonary trunk encounters 2nd shunt, the ductus arteriosis, a short vessel connecting the pulmonary trunk and aorta (more blood enters systemic circulation this way)

ductus arteriosis > ligamentum arteriosum

• shunt btn pulmonary trunk and aorta

foramen ovale > fossa ovalis

• shunt btn atria

umbilical vein > ligmentum teres

• carries oxygenated blood to fetus (red)

umbilical arteries > median umbilical ligaments

• carry blood away from heart (blue)

hepatic portal system

portal btn lower organs and liver. funnels splenic vein, and superior and inferior mesenteric veins

• liver processes blood (determines glucose > glycogen storage, rearrange amino acids, store as fat or send out)

• after processing, liver releases contents into hepatic veins

hepatic veins

leaves liver after processing, goes to inferior vena cava