cardiovascular anatomy: selected anatomy of head, neck and brain circulation Flashcards
coronary circulation includes
brachiocephalic trunk, left common carotid artery, left subclavian artery
Coronary circulation:
Coronary arteries branch from ______
There are _____ and _______
ascending aorta
left and right
Coronary circulation:
Coronary veins what are the 3
Drain into ______
great, middle and small cardiac veins
drain into the coronary sinus
right coronary artery branches (3)
-posterior inter ventricular artery
-sino atrial artery
-right marginal artery
left coronary artery branches (2)
-anterior inter ventricular branches (LAD)
-circumflex branches into left marginal artery
Arteries of Head and Neck
-External carotid artery supplies blood to?
supplies face, scalp and oral cavity
Arteries of Head and Neck
-internal carotid artery supplies blood to?
supplies brain and eye
Arteries of Head and Neck
-vertebral artery supplies blood to?
brain
Head and Neck Circulation
External
facial
lingual
superior thyroid
ascending pharyngeal
occipital
superficial temporal
maxillary
posterior auricular
Head and Neck Circulation
Internal
ophthalmic
anterior cerebral
middle cerebral
Head and Neck Circulation
Subclavian (3)
vertebral
thyrocervical
costocervical
Veins of Head and Neck
Dural venous sinuses
-drain blood from the brain
-no valves or tunics
-drain to internal to internal jugular vein
Veins of Head and Neck
Facial vein
drains face
Veins of Head and Neck
retromandibular vein
drains deep structures of face
Head and Neck circulation
venous drainage
- temporal and maxillary veins drain into external jugular vein
- facial vein drains into jugular vein
-vertebral vein drains into brachiocephalic vein
Arterial supply to brain
internal carotid artery (2)
-Anterior and middle cerebral arteries
Arterial supply to brain
vertebral arteries (1)
- basilar arteries
(posterior cerebral arteries)
Arterial supply to brain
circle of willis
-Anastomoses between anterior and posterior cerebral arteries
cerebral arterial circle: circle of willis (6)
-anterior cerebral artery
-internal carotid artery
-posterior communicating artery
-posterior cerebral artery
-basilar artery
-anterior communicating
the arterial supply to the cerebral hemispheres is derived from the
-anterior circulation provided by the bilaterally paired internal carotid arteries
-posterior circulation provided by the bilateral arteries
the anterior circulation arises form the common carotid arteries originating at the ______
aorta
at the carotid bifurcation, the common carotid splits creating the ________ and the _______
internal carotid
external carotid arteries
the vertebral arteries, which supply the _______ arise fro subclavian arteries and the ascend through foramina in the transverse processes of the cervical vertebrae (foramina transversaria; before entering the foramen magnum and joining toform the basilar artery
posterior circulation
these anterior and posterior circulations meet in an anastomotic ring called the ________ from which all major vessels arise
circle of willis
the main arteries supplying the cerebral hemispheres are the ____, _____ and ______ cerebral arteries
anterior, middle and posterior
the anterior arteries (ACAs) and middle cerebral arteries (MCAs) are the terminal branches of the
internal carotid arteries
the anterior cerebral arteries anastomose anteriorly at the _________
anterior communicating artery
the anterior and posterior circulations are linked to each other via _________ which connect the internal carotids to the posterior cerebral arteries
posterior communicating arteries
digestive tract os supplied by 3 unpaired branches of the abdominal aorta:
celiac trunk
superior mesenteric artery
inferior mesenteric artery
celiac trunk supplies
foregut organs
superior mesenteric artery supplies
midgut organs
inferior mesenteric artery supplies
handgut organs
marginal artery anastomoses between
superior mesenteric artery and inferior mesenteric artery
marginal artery supplies
the large intestine with dual blood supply
abdominal aorta gives off paired arteries (3)
-renal arteries
-gonadal rates
-common iliac arteries
renal arteries supply
kidneys
gondola arteries supply
ovaries or testes
common iliac arteries branch into ____- and _____ which supply
external iliac artery - lower limb
internal iliac artery - pelvis and perineum
external iliac crosses inguinal ligament and continues as ______
femoral artery
interla iliac gives _____
pelvic branches
venous drainage of abdomen and pelvis
Caval system
composed of veins that drain into the superior vena cava or inferior vena cava to return to the heart
caval system includes
renal veins
gonadal veins
common iliac veins
venous drainage of abdomen and pelvis
portal system
composed of veins that drain the digestive tract and transport blood to the liver
-After passing through the liver, the blood is drained into the inferior vena cava to return to the heart
portal system includes
hepatic portal vein
splenic vein
superior mesenteric vein
inferior mesenteric vein
caval system veins (5)
-renal
-gonadal
-common iliac
-external iliac
-internal iliac
splenic vein drains
foregut
superior mesenteric vein drains
midgut
inferior mesenteric vein drains
hindgut
hepatic veins drain blood from ____________ to the the ________
liver
inferior vena cava
venous drainage:
brachiocephalic vein comes from the union of _______ and ________ veins
subclavian
internal jugular
venous drainage:
brachiocephalic vein receives drainage from _______
vertebral vein
venous drainage:
left and right brachiocephalic veins merge to form _______
superior vena cava
venous drainage:
internal thoracic vein empties into ________
brachiocephalic vein
hepatic circulation
portal hepatic vein receives blood from ______ and ______ as well as ____
inferior and superior mesenteric veins
splenic veins
hepatic circulation
liver has dual blood supply via _______ and ________
hepatic portal vein (2/3 of circulating blood)
hepatic artery (1/3 of circulating blood)
hepatic circulation
hepatic portal vein is formed from the fusion of ______ and ____ veins
superior mesenteric and splenic
hepatic circulation
hepatic portal vein empties directly into _____
inferior vena cava
