Anatomy of the veins of the trunk - Lecture 6

Helpfulness: +1
Set Details Share
created 3 years ago by parn94
502 views
updated 3 years ago by parn94
Grade levels:
College: Second year, College: Third year
Subjects:
anatomy
show moreless
Page to share:
Embed this setcancel
COPY
code changes based on your size selection
Size:
X
Show:
1

Describe the features and tributaries of the Superior Vena Cava (SVC)

card image

Tributaries from R. and L.Brachiocephalic veins

  • Brachiocephalic formed by tributaries of subclavian, internal jugular and internal thoracic veins
    • Subclavian tributary are external jugular veins

Single Azygous vein tributary

Begins in lower border of 1st costal cartilage and descends behind 2nd-3rd intercostal spaces into RA

L.Lateral border is aortic arch and trachea

R.Lateral border is pleura and right upper lobe of lung

Anterior border is thymus and manubrium

2

Describe the features and tributaries of the Inferior Vena Cava (IVC)

card image

Formed by the joining of the common iliac veins at L5

Is a retroperitoneal structure - Posterior to abdominal cavity next to vertebral colum

Anastomoses the azygous system on the Right side of the vertebral column

Caval opening is at T8

Right side

  • Gonadal vein and suprarenal vein drain into IVC

Left side

  • Gonadal vein and suprarenal vein drain into renal vein then into IVC
  • L.Inferior phrenic veins drain into L.Renal vein

All lumbar and hepatic veins drain into IVC

Tributaries from superior to inferior

  • Hepatic - T8
  • Inferior phrenic - T8
    • 1-2 per side from diaphragm
  • R.Suprarenal - L1
  • Renal - L1
  • R.Gonadal - L2
  • Lumbar - L1-5
  • Common iliac - L5
    • Tributaries of internal and external iliac veins
3

Describe the epigastric veins, their tributaries and their relationship to the anterior abdominal wall

card image

The veins accompany the arteries in the abdominal wall

Superior epigastric

  • Drains into internal thoracic vein - inferior to external iliac vein

Both the superior and inferior anastomose with each other at the level of the umbilicus, and with paraumbilical veins

Inferior epigastric vein

  • Arises from the superior epigastric vein
  • Drains into external iliac vein
4

Describe the azygous system, its function and the relation to the SVC

card image

The azygous or hemiazygous vein arise from the ascending lumbar vein from the lumbar veins and lateral sacral vein that come from the common iliac vein

  • When these ascending lumbar veins cross the subcostal vein (vein along the bottom of the 12th rib) it becomes the azygous or hemiazygous

Comprises the azygous, hemiazygous, accessory hemiazygous and the L.superior intercostal vein

Function

  • Drain the posterior abdominal wall, thoracic wall and the upper lumbar region via the lumbar and posterior intercostal veins

Azygous

  • Arises from the union of the R.ascending lumbar and the R.subcostal vein ~T12
  • Drains the R.lower 8 posterior intercostal veins and the R.bronchial veins
  • Enters thorax via aortic hiatus
  • Ascends along vertebral column on the RHS within the posterior mediastinum
  • Arches over R.main bronchus T5-6
  • Enters SVC at T4 or can enter into R.Brachiocephalic or R.subclavian
  • Tributaries
    • Hemiazygous joins at T8 as it crosses from L. to R.
    • R.superior intercostal vein joins superiorly

Hemiazygous

  • May or may not be present
  • Arises from the L.ascending lumbar vein
  • Passes through L.crus of diaphragm
  • Drains L.9-11 posterior intercostal veins and L.subcostal vein
  • Crosses vertebral column from L. to R. at T8 where it anastomoses with the azygous

Accessory hemiazygous

  • Not always present
  • On the LHS
  • Arises from the 4th-8th L.posterior intercostal veins
  • Drains L.bronchial vein
  • Crosses behind the oesophagus at T8 to anastomose with the azygous or can anastomose superiorly to the L.brachiocephalic vein to join into the SVC
5

List all of the veins and their tributaries of the trunk (abdomen, thorax and neck region)

card image
  1. SVC
  2. L. and R. Brachiocephalic
  3. Internal Jugular
  4. External Jugular
  5. Subclavian
  6. IVC
  7. Hepatic veins
  8. R. Suprarenal
  9. R. gonadal
  10. R. Renal
  11. L. Suprarenal
  12. L. Renal
  13. L. Gonadal
  14. Common iliac
  15. Internal iliac
  16. External iliac
  17. Femoral
  18. R.Ascending lumbar vein
  19. Azygous
  20. Hemiazygous
  21. Accessory Hemiazygous
  22. L.Ascending lumbar
6

Describe in brief the major drainage vessels of the 3 section of the gut (fore, mid and hind) via the hepatic portal system

card image

Foregut ~ oesophagus, duodenum, stomach

  • Drained by splenic vein
  • Supplied by coeliac trunk

Midgut ~ Small intestine

  • Drained by superior mesenteric vein
  • Supplied by superior mesenteric artery

Hindgut ~ Large intestine

  • Drained by inferior mesenteric vein
  • Supplied by inferior mesenteric artery
7

Describe the relationship between surface/cross sectional anatomy and that truncal venous system

R.1st costal cartilage = Brachiocephalic veins become SVC

Manubriosternal joint = Azygous terminates at SVC

Transpyloric plane = Confluence of superior mesenteric and splenic veins

L5 = Common iliac veins joint o form IVC


Related pages


what is the primary function of the hypothalamusa protein is a linear polymer composed ofsynarthosiswhich of the following is a stage of mitosisgenotypes of gametescampbell biology 7th edition test bankthe term meaning an absence of spontaneous respiration iswhich blood cell lacks a nucleusthis person presides over the senatephysical features of earthwhich of the following is true of osmosiscell plate mitosisexistential therapy yalomwhat is the function of external naresnerves of the foreheadcollection of spinal nervesactus reus mens rea and concurrence constituteloop of henle functionessentials of anatomy and physiology 4th editionreflex nervous systemhybresis iontophoresis patchrole of membrane carbohydrates in cell cell recognitionanatomy of veins and arterieshyoid bone is unique becausemartini anatomyfetal red blood cell productionartery and vein labeling quizapush chapter 9evidence that supports the endosymbiotic theoryz score for 98 confidence intervalhomeotic genes are responsible for _____genotype ratiosbacillus subtilis nutrient agarfibularis anteriorthe mechanism of water reabsorption by the renal tubules ismuscles commonly used for intramuscular injectionsmenstruation is triggered by a drop in the levels offaster communication and synchronization are two advantages ofmarketing quizletsurgical aspesisrisk for fluid and electrolyte imbalanceintegral membrane proteins stay in membranes because ofsucrose test microbiologyadpistatementstibialis anterior insertion and originadvantages of internal fertilisationon what bases are epithelial tissues classifiedlower epidermis definitiontesticular anatomy diagramcohesion tension hypothesisanaphase meiosisfunction of organic matrix in boneregional terms quiznumber of protons neutrons and electrons in tinsmall pinpoint hemorrhagesgustatory receptors are locatedcomposes the dermis of the skindescribe the role of fire in chaparral and grassland biomes193 member countries of the united nationstherapeutic communication exampleschapter 6 anatomy and physiology quizletwhat happens in krebs cyclehow is osmosis different to diffusionsynovial joints are freely movable joints thatbotany examsparknotes anatomy and physiologyseparates the dna strands during replicationmacbeth exam reviewhesi a2 review questionseconomics of money and banking mishkinrosie the riveter apushcorpora cavernosa femalewhich of the following are major mineralswhere is trypsin found in the digestive systemanatomy of the pericardiumextant taxaprime mover definevenipuncture hematomablood culture bottles order of draw