vessels and circulation #2 Flashcards
inferior vena cava
veins inferior to the diaphragm merge to collectively form this vein, which is the largest diameter of any vessel in the body.
where is the inferior vena cava in relation to the descending abdominal aorta.
it lies to the right of the descending aorta
left and right brachiocephalic veins
the veins that drain the head, neck, and upper limbs merge together to form these veins.
superior vena cava
the left and right brachiocephalic veins merge to form this vein
internal jugular vein
lies deep to the sternocleidomastoid muscles and eventually merges with the subclavian vein to form the brachiocephalic vein
external jugular vein
travels superficial to the sternocleidomastoid muscle
vertebral veins
extend through the transverse foramina of the cervical vertebrae and drain into the brachiocephalic veins
dural venous sinuses
most of the venous blood of the cranium drains through these
cavernous sinus
receives input from the superior ophthalmic veins and the inferior ophthalmic veins that drain the skin in the region of the nose
Where does most of the blood from the dural venous sinuses collect
the internal jugular veins
azygous vein
receives venous drainage from the veins of the lumbar region, the sacral region, the intercostal muscles, the bronchi, esophagus, and pericardium. it then merges with the superior vena cava
bronchail veins
drain into the azygous system of veins
esophageal veins
drain the esophageal wall and travel to the azygous vein or the left gastric vein
superior phrenic veins
merge with the inferior vena cava
inferior phrenic veins
merge with the inferior vena cava
musculophrenic veins
travel through the branches that eventually lead to the brachiocephalic veins
hepatic portal system
inferior mesenteric vein, splenic vein, and the superior mesenteric vein all merge in this system