Anatomy · MU Sofia

Cardiovascular system · 127. Inferior vena cava. Veins of the pelvis and the lower part of the abdominal wall.

Covers the inferior vena cava, from its formation at the level of L4 and L5 through its course up the right side, its passage through the diaphragm at T8, and its opening into the right atrium. It lists the visceral and parietal tributaries, including the hepatic, renal, suprarenal and gonadal veins and the lumbar and phrenic branches. It then describes the pelvic veins: the external, internal and common iliac veins, with their parietal and visceral tributaries and the plexuses they drain.

Inside: 2 sections · 1 labelled picture · 11 flashcards · 2 min

Topic 115 of 264 in the MU Sofia syllabus for Anatomy (Dental Medicine, Year 2). The free AceMed note covers it in 2 sections, about 293 words (2 min of reading), with 11 flashcards.

In this note

  1. IVC
  2. PELVIC VEINS

IVC

  • Is the largest vein in the human body.
  • No valves.

Function: Collects deoxygenated blood from the inferior half of the body (below the diaphragm)

Visceral tibutaries:-

  • Hepatic veins (3) (Right, intermediate & left).
  • R. Superenal vein
  • R. Renal vein
  • L. Renal vein
  • L. Suprarenal v.
  • L. Ovarian / Testicular v.
  • R. Ovarian / Testicular v.

Parietal Tibutaries:

  • (4) Pairs of lumber veins.
  • communicate with:
  • External / Internal vertebral venous plexuses (to drain spinal cord)
  • Ascending lumber veins.
  • Inferior phrenic vein.
  • R. common iliac vein + L. Common iliac vein
  • ↓ L4 _ L5
  • Inferior Vena Cava
  • ↓ Ascends along the right side
  • ↓ Passes throu h the diaphragm at the level of T8 vertebra (through caval opening). together with the phrenic nerve.
  • ↓ It opens into the right atrium at the level of 6th right costal cartilage.

PELVIC VEINS

  • There are 3 main veins:

1. External iliac vein:

  • Continuation of Femoral v.

Starts at crossing of inguinal ligament.

Tributaries:

  1. 1. Inferior Epigastric v.
  • Collects blood from anterior abdominal wall.
  • Its peripheral part is doubled
  • Anastmoses from the superior epigastric vein.
  1. 2. Deep Circumflex iliac vein:
  • Collects blood from the iliac region and the adjacent abdominal wall.

2. Internal iliac vein:

Parietal Tributaries

  1. 1. Sup. gluteal veins
  2. 2. Inf. gluteal veins.
  3. 3. Obturator veins
  4. 4. Lateral Sacral veins
  5. 5. Illiolumber V.

Visceral Tributaries:

  1. 1. External / Internal Rectal venous plexus
  2. 2. Vesical Venous Plexus.
  3. 3. Internal pudendal vein.
  4. 4. Prostatic Venous Plexus (male)
  5. 5. Utrine venous plexus (female)
  6. 6. Vaginal Venous plexus (female)

3. Common iliac vein: CIV

  • internal iliac v. + External iliac v.
  • ↓ sacroiliac joint
  • CIV + CIV ← no valves
  • ↓ IVC

Tributaries:

  1. 1. Ascending lumber v.
  2. 2. Median sacral v.
  • drain into L.CIV.
  1. 3. Illiolumber v.
  • or in internal iliac v.

Read the full note free

The whole note, all 2 sections, is free with an AceMed account, with its 11 flashcards. Premium adds flashcard recall, highlights and Ask AI.

Start freeAlready a member? Open the note