BLOOD SUPPLY OF GI

Esophagus :

Arterial supply : 1) Inferior thyroid 2) Esophageal branch of Aorta 3)Esophageal branch of left gastric.

Venous Drainage :1) Brachiocephalic 2)Azygos 3)Left Gastric

Stomach:

Arterial Supply : 1)Short gastric 2)Right gastroepiploic 3)left gastroepiploic 4)right gastric & left gastric

Venous Drainage: 1)Short gastric - to Splenic vein 2)Left gastropiploic vein -to splenic vein 3)Right gastropiploic vein- to superior mesenteric vein 4)Right and Left gastric vein -to portal vein 5)Prepyloric vein.

Duodenum:

Arterial Supply: 1)Superior and Inferior Pancreaticoduodenal 2)Right Gastric 3)Right gastroepiploic 4)Supraduodenal

Venous Drainage:1)Splenic 2)Superior mesenteric 3)Portal vein

Jeujenum :

Arterial Supply: 1)Jeujenal and Ileal branch of superior mesentric artery

Venous Drainage:1)Jeujenal and Ileal veins -to superior mesenteric vein

Cecum:

Arterial Supply: Cecal branches of Ileocolic
           
Venous Drainage: Superior mesenteric vein

Appendix:

Arterial Supply: Appendicular branch of inferior divison of Ileocolic artery
               
Venous Drainage: 1)Appendicular 2)Ileocolic 3)Superior mesenteric vein

Large Intestine:

Arterial Supply: 1)Ileocolic artery 2)Right colic 3)Middle Colic 4)Ascending branch of left colic 5)Descending branch of left colic 6)Sigmoid arteries

Venous Drainage: 1)Superior mesenteric vein 2)Inferior mesenteric vein

Rectum:

Arterial Supply:1)Superior rectal 2)Middle rectal 3)Median Sacral

Venous Drainage: 1)Superior rectal 2)Middle rectal

Anal Canal:

Arterial Supply:1)Above pectinate line- Superior rectal 2)Below pectinate line -Inferior rectal
               
Venous Drainage:1)Upper part-Superior rectal 2)Middle part-middle rectal 3)Lower part-Inferior rectal

Spleen:

Arterial Supply:Splenic artery
         
Venous Drainage:Splenic vein

Pancreas:

Arterial Supply:1)Pancreatic branch of splenic artery 2)Superior pancreaticoduodenal 3)Inferior pancreaticoduodenal artery

Venous Drainage: 1)Portal 2)Splenic 3)Superior mesenteric vein

Liver:

Arterial Supply:Hepatic artery
       
Venous Drainage:Portal vein


Gallbladder :

Arterial Supply:Cystic artery
                 
Venous Drainage:Cystic vein

Blood supply of male reproductive system

Penis:

Arterial supply:1)deep and dorsal artries of penis.
                    2)artry to bulb of penis.
                    3)superficial external pudental artry.
Venous drainage:superficial dorsal vein-drains into external pudental vein.
                          deep dorsal vein-drains into prostatic venous plexus.
Prostate:
Arterial supply:1)inferior vesical 2)medial rectal 3)internal pudendal.

Venous drainage:prostatic venous plexus-drains into internal illiac vein.

Scrotum:
Arterial supply:1)superior and deep external pudendal artry
                     2)scrotal branch of internal pudental.
                     3)cremasteric branch of inferior epigestric.

Venous drainage:into corresponding veins.

Testis:
Arterial supply:  testicular artry.

venous drainage:pampiniform plexus of veins.

Ductus deferens:


Arterial supply: artry of ductus deferens(from superior vesical artry).

Venous drainage:vesical venous plexus -drains into internal iliac vein.

Seminal vesical:
Arterial supply:1)inferior vesical 2)middle rectal.

Venous drainage:internal iliac.

Epididymis:

Arterial supply:same as testis.

Venous drainage:same as testis.

Blood supply of female reproductive system.

Breast:
Arterial supply:branches of the internal thoracic artery.
                      lateral thoracic and thoracoacromial arteries.
                      posterior  intercostal arteries(2nd, 3rd and 4th ICS).

Venous drainage: Mainly axillary vein.
                           Some may drain to internal thoracic vein.

                         

Ovary:
Arterial supply:1)ovarian artry 2)uterine artry.

Venous drainage: pampiniform venous plexus.on the right side drain into IVC.In the left side drains into left renal vein.

Uterus:
Arterial supply:1)uterine artry 2)ovarian
Venous drainage:veins form a plexus which drain through uterine,ovarian and vaginal veins into internal iliac veins.

Uterine tube:

Arterial supply:medial 2/3-uterine artry.lat.1/3 ovarian artry.

Venous drainage:pampiniform plexus of ovary.

Vagina:Arterial supply:1)vaginal artry 2)uterine artry 3)internal pudendal artry 4)middle rectal artry.

Venous drainage:Venous plexus.vaginal venous plexus which drains into internal iliac veins through vaginal veins.

Blood supply of Urinary system

Suprarenal Gland:

Artrial supply:1)superior suprarenal 2)middle suprarenal 3)inferior suprarenal

Venous drainage:suprarenal

Kidney:

Artrial supply: renal artry

Venous drainage: renal vain

Ureter:

Arterial Supply:

Upper part:Renal artery(may also receive branches from gonadal or colic artery)
Middle part: Abdominal aorta (may also receive branches from gonadal or illiac artery)
Lower part:Vesical,Middle rectal or Uterine(in female)

Venous Drainage :

Upper part:Renal vein (may also receive branches from gonadal or colic vein)
Middle part: Abdominal aorta (may also receive branches from gonadal or illiac vein)
Lower part:Vesical,Middle rectal or Uterine(in female)

Urinary Bladder :

Arterial Supply:1)Superior and Inferior Vesical (mainly) 2)Obturator,Inf.Gluteal 3)Uterine,Vaginal(in female)

Venous Drainage:Vesical venous plexuses drains into internal iliac veins.

Blood supply of CNS


Cerebrum:
Arterial supply:1)anterior cereblar.2)middle cereblar.3)inferior cereblar.


Venous drainage:1)external cereblar.2)internal cereblar.


Corpus callosum:
Arterial supply:1)anterior cerebral.

Venous drainage:1)callosal veins 2) callosocingulate veins.


Internal capsule:
Arterial supply:1)anterior cereblar.2)middle cereblar.3)inferior cereblar.

Mid brain:
Arterial supply:posterior cerebral.

Pons:
Arterial supply:pontine branch of basilar artery.

Medulla:
Arterial supply:1)medullary branches of vertebral artery2)posterior inferior cerebellar.

Cerebellum:
Arterial supply:1)posterior cerebellar2)anterior inferior cerebellar3)posterior inferior cerebellar.


Thalamus:
Arterial supply:1)mainly posteriomedial and posterolateral branches of posterior cerebral.2)partly anteromedial central branches.




Spinal cord:
Arterial supply:1)anterior spinal 2)posterior spinal3)spinal branches of vertebral,deep cervical,posterior intercostal and lumber arteries.


Venous drainage:veins forms six plexuses which join internal vertebral venous plexus.

Blood supply of Head and Neck


Scalp:
Arterial supply:1)supratrocheal,supraorbital,superficial temporal, 2)posterior auricular,occipital.

Venous drainage:1)supratrocheal,supraorbital,2)superficial temporal, posterior auricular,occipital.


Face:
Arterial supply: 1)facial, transverse facial2)arteries that accompany cutaneous,nerve.

Venous drainage:1)common facial 2)retromandibular.


Tongue:
Arterial supply:1)lingual(mainly),2)root-by tonsilar, ascending palatine and ascending pharyngeal.

Venous drainage:1)deep lingual vein-drains either into common facial vein or into IJV.


Pharynx:
Arterial supply:1)ascending pharyngeal,2)ascending palatine and tonsilar,3)greater platine,pharyngeal,4)artery of pterygoid canal,4)dorsal lingual artery.


Venous drainage:1)IJV,2)facial vein.

Middle Ear:
Arterial supply:1)mainly-anterior and posterior tympanic,2)small arteries are superior and inferior tympanic artery,tympanic branch of artery of pterygoid canal,caroticotympanic artery and petrosal artery.

Venous drainage:1)superior petrosal sinus2)ptergoid plexus of veins.

Auditory tube:
Arterial supply:1)ascending pharyngeal 2)middle meningeal 3)artey of pterygoid canal

Venous drainage:1)pharyngeal vein 2)ptergoid plexus of veins.


Tympanic membrane:
Arterial supply:1)outer surface-deep auricular branch of maxillary artery.
                       2)inner surface-anterior and posterior tympanic arteries.


Venous drainage:1)from outer surface-into EJV
                          2)frominner surface-into transverse sinus and venous plexus around auditory tube.


Nasal septum:
Arterial supply:1)anterior ethmoidal,superior labial,2)sphenopalatine.


Venous drainage:veins form a plexus which drains into facial vein and through sphenopalatine vein into ptergoid venous plexus.


Lateral wall of nose:
Arterial supply:1)anterior and posterior ethmoidal,facial,2)greater platine,sphenopalatine.


Venous drainage::veins form a plexus which drains into facial vein pharyngeal plexus and ptergoid venous plexus.


Soft palate:
Arterial supply:1)greater palatine2)ascending palatine3)palatine branch of ascending pharyngeal.

Venous drainage:1)ptergoid venous plexus2)tonsilar venous plexus.


Hard palatine:
Arterial supply:palatine branch of maxillary

Venous plexus:ptergoid venous plexus.

Submandibualr gland:
Arterial supply:facil

venous drainage:facial

Sublingual gland:
Arterial supply:lingual

Venous drainage:lingual.

Thyroid gland:
Arterial supply:superior thyroid 2)inferior thyroid 3)arteria thyroidea ima.

Venous drainage:1)superior thyroid 2)middle thyroid3)inferior thyroid.


Parathyroid gland:
Arterial supply:1)inferior thyroid2)anastomosis between superior and inferior thyroid arteries.


Venous drainage:1)superior thyroid 2)middle thyroid3)inferior thyroid.