Flashcards in Anatomy.... Deck (53):
Blood flow toward the heart
What are the 3 sub-systems within venus circulation
portal system of the livervenus sinuses (dural sinuses)azygos system
that deal with venous return of blood from the digestive organs to the liver; only system that starts at capillaries and ends at capillaries
portal system of the liver
rely on the force of gravity by which to bring blood from your head.
venus sinuses (dural sinuses)
group of veins draining blood from thoracic cavity (dorsal body wall)
what are the 4 classifications for veins?
1. superficial- close to surface2. deep- furthest from surface3. deep veins which accompany arteries- opposed to those which exist signally 4. Vena comitantes (comites)- paired veins surround and accompany arteries
What are the 4 superficial veins of the upper extremities
basilic veincephalic veinaxillary veinmedian cubital vein
most medial superficial vein of upper extremities; terminates by joining with the vena comitantes
most lateral superficial vein of upper extremities
located in middle of elbow, vein used to draw blood
median cubital vein
What are the 6 deep veins of the upper extremities
vena comitantes of brachial arteryaxillary veinright subclavian veinright brachiocephalic veinleft brachiocephalic veinSVC or Superior Vena Cava
used as visual to located and raise artery (brachial)
vena comitantes of brachial artery
first single deep vein of each upper extremity with same name as artery it accompanies
accompanies right subclavian artery
right subclavian vein
union of right subclavian and right internal jugular; leads to the superior vena cava
right brachiocephalic vein
longer because it crosses over aortic arch; formed union of left internal jugular and left subclavian veins; leads to the superior vena cava
left brachiocephalic vein
2nd largest vein, formed by union of left and right brachiocephalic veins, drains any blood from head, neck, upper extremities and thoracic cavity
SVC or superior vena cava
what are the 2 superficial veins of the lower extremities
short (small) saphenous veingreat (long) saphenous vein
Most lateral superficial vein of lower extremities; It begins on the lateral side of the dorsal venous network of the feet. It terminates by emptying into the popliteal vein.
short (small) saphenous vein
used as graft for CABG; longest vein the human body runs entire medial aspect of lower extremities by emptying into femoral vein; NEVER use for drainage!
great (long) saphenous vein
What are the 5 deep veins of the lower extremities
femoral veinL/R External iliac veinL/R Internal iliac veinL/R common iliac veinIVC or Inferior vena cava
begins at opening of adductor magnus, used for drainage, carries blood from thigh to heart, moves superiorly (upward)
accompanies artery of same name, unites with internal iliac vein to form common iliac
Left & Right External iliac vein
accompanies artery of same name, drains from right gluteal region. Unites with external iliac to form common iliac
Left & Right Internal iliac vein
forms from uniting of the external and internal iliac veins. Left common is longer than right because it crosses under descending abdominal aorta
Left & Right common iliac vein
formed by union of right and left common iliac veins. Largest vein of human body. Lies laterally and to right of descending aorta. Will drain blood from lower extremities and abdomen. **only used for drainage in non autopsy infant cases.
IVC or Superior Vena Cava
What are the 9 tributaries of the IVC
Lumbar veinsRight Renal VeinLeft Renal VeinLeft gonadal veinInferior phrenic veinHepatic veinsLeft Superenal gland veinRight gonadal veinRight suprarenal vein
4 pairs; 4 on each side; drains blood directly from lower back into IVC
drains from the right kidney into the IVC
right renal vein
drains from the left kidney directly into the IVC
left renal vein
drains blood from reproductive gonads. Tributary to left renal vein also.
Left Gonadal vein (testicular/ ovarian)
tributary of left renal vein
Left superenal glad vein
drains directly into the IVC from reproductive glands
right gonadal (testicular/ ovarian)
drains from under surface of diaphragm directly into IVC.
Inferior Phrenic vein
most superior tributary of the IVC; drains from liver directly into the IVC; usually 3
What are the 3 veins of the azygos system
azygos veinHemiazygous veinAssessory Hemiazygous vein
drains into SVC; Only vein to drain blood from right side of the thoracic cavity drains only by means of azygos.
left side, first vein to drain blood from left intercostals spaces 8-12, this drains directly into azygos vein.; single unpaired vein in the body
first vein to drain blood from intercostals spaces 4-7, empties into hemiazygos vein.
Asseccory Hemiazygous vein
The left intercostal spaces 1-3 typically empty into what?
the left brachiocephalic vein
What are the 6 veins of the skull
Dural venus sinusFacial veinPosterior auricular veinretromandibular veinexternal jugular veininternal jugular vein
*brain tissue itself; all veins that drain blood from all of inside skull – gravity drains or feeds these into the internal jugular vein
Dural venus sinus
first vein to drain blood to those areas fed by facial arteries; cheeks, mouth, eyelids, nose, lips
behind the ear; first to drain blood to those areas fed by posterior auricular arteries and occipital arteries
Posterior auricular vein
named located behind the lower jaw, 1st vein to drain blood from those areas feed by maxillary & superficial temporal arteries; forehead and upper teeth
only drain blood coming from outside the scalp; formed by union of posterior auricular and retromandibular
exterior jugular vein
drainage inside the scalp but is raised for embalming; formed by union of facial vein & retromandibular
internal jugular vein
What are the 4 veins of the portal system
splenic veinsuperior mesenteric veinportal veininferior mesenteric vein
first vein to drain blood from the spleen, stomach, or pancreas
drains all small of intestine and right half of the large intestine including the secum, ascending colon, transverse colon, and appendix. All parts that drain and are parts of the right large intestine
Superior mesenteric vein
formed by union of splenic vein and the superior mesenteric vein; single unpaired
drains the first half of large intestine; rectum, anal canal, descending colon, and sigmoid colon.
inferior mesenteric vein