Venous Supply Flashcards
What drains into the superior vena cava (SVC)
R and L brachiocephalic
What is the internal jugular vein a continuation of
Sigmoid sinus
When the internal jugular vein combines with the subclavian vein what does it form
Brachiocephalic
Where does the internal jugular vein receive blood from
Brain and part of the face
What are sinuses (brain)
Connect major cerebral veins to the jugular veins
Where is the inferior sagittal sinus
At the inferior margin of the flax cerebri
Where is the superior sagittal sinus
At the superior border of the flax cerebri
Where is the straight sinus
In the midline of the tentorium cerebri
Where is the transverse sinus
In the posterior fixed margin of the tentorium cerebelli
Where is the sigmoid sinus
Deep groove in the mastoid part of the temporal bone
Where is the cavernous sinus
Beside the body of the sphenoid bone
Where is the superior petrosal sinus
In the attached lateral margin of the tentorium cerebelli
Where is the inferior petrosal sinus
In the groove between the petrous temporal bone and the basal part of the occipital bone
What are the two sagittal sinuses that occupy the longitudinal cerebral fissure
Superior and inferior sagittal sinuses
How do intracranial venous sinuses and the veins outside the skull communicate
Via a variable number of emissary veins
How are emissary veins important
Possible routes of infection can be spread into the cranial cavity from outside the skull
What is significant about cerebral veins
Drain into dural venous sinuses
What are dural venous sinuses
Channels formed between the two layers of dura mater
Name the cerebral veins categories
Internal cerebral veins
External cerebral veins
What are internal cerebral veins
Run within the substance of the brain tissue
End when they reach the surface of the brain where they become the external cerebral veins
What are internal cerebral veins
Run within the substance of the brain tissue
End when they reach the surface of the brain where they become the external cerebral veins
What are the external cerebral veins
These run on the surface of the brain, crossing the subarachnoid space to drain into the dural venous sinuses
What drains into the IVC
Hepatic vein
What drains into the hepatic portal vein
Superior mesenteric
Splenic
What does the superior mesenteric vein arise from
Mesentery of the small intestine
What do branches of the superior mesenteric artery form
Extensive anastomoses
What are the branches of the superior mesenteric artery
Jejunal branches
Ileal branches
Ileocolic artery
Right colic artery
Middle colic artery
What does the jejunal branch supply
Jejunum
What does the ileal branch supply
Ileum
What does the ileocolic artery supply
Caecum, appendix and ascending colon
What does right colic artery supply
Ascending colon
What does the middle colic artery supply
Transverse colon
Where are the jejunal and ileal branches embedded
Mesentery of the small intestine
What does the splenic vein drain
Spleen
Body and tail of pancreas
Fundus and greater curvature of the stomach
Hind gut (distal transverse colon, descending colon, sigmoid colon and rectum)
Where is the inferior mesenteric vein found
Accompanies the inferior mesenteric artery
Ascends of the left side of the abdomen
Where does the inferior mesenteric vein drain
Splenic artery
What does the inferior mesenteric drain
Hindgut
Where is the superior mesenteric vein
Accompanies the superior mesenteric artery
Ascends and unites with the splenic vein close to the liver (posterior to the neck of the pancreas)
What does the superior mesenteric vein drain
Midgut
What vein enters the liver
Hepatic portal vein
After nutrients are removed from the blood what does the hepatic portal vein enter
Small hepatic veins
- Unite to form to or three large hepatic veins
When do hepatic veins enter the IVC
Passes posterior to the liver
(hepatic veins are within the liver and cannot been seen externally)
Where does the left and right gastro-omental veins drain into
Ultimately hepatic portal vein
Where does the left and right gastric veins drain into
Ultimately hepatic portal vein
What drains the gallbladder
Cystic veins
Where do cystic veins drain
Directly into the liver or hepatic portal vein
What is the difference between drainage of the left and right kidney
Left kidney
Branches of left adrenal vein and left gonadal vein come of left renal vein
Right kidney
Branches of right renal vein, right adrenal vein and right gonadal vein come off the inferior vena cava
When does the femoral vein become the external iliac vein
When the femoral vein crosses underneath the inguinal ligament
What level does the left and right common iliac veins combine to become the inferior vena cava
L5
What joins to become the left/right common iliac vein
Left/right external iliac vein
Left/right internal iliac vein
