[B] Phylogeny - Arterial and Venous

• Embryonic Development

  • Blood cells - mesoderm
  • Blood islands - mesodermal cells
  • Involved in angiogenesis and hemopoiesis
  • Epimyocardium - gives rise to myocardium
  • Endocardium - endothelial lining of the heart
  • Myocardium - cardiac muscle of heart wall
  • Embryonic heart:
  • Sinus venosus
  • Atrium
  • Ventricle
  • Bulbus cordis

  
• Label the arterial vessels

  A) Dorsal aorta

  B) Aorta

  C) Caudal arteries

  D) Unpaired arteries

  E) Celiac artery

  F) Anterior mesenteric artery

  G) Posterior mesenteric artery

  H) Paired arteries

  I) Renal artery

  J) Genital artery

  K) Iliac artery

  L) Subclavian artery

  
• Paired arteries:

  1. Subclavian - neck and upper extremities
  2. Iliac - hindlimb and lower extremities
  3. Genital - ovarian or gonadistic
  4. Renal - anus and kidney
• Unpaired arteries:

  1. Celiac - liver, stomach, spleen, and intestines
  2. Anterior mesenteric - small intestine
  3. Posterior mesenteric - Large intestine
• Veins:

  1. Common cardinal vein
  2. Anterior cardinal
  3. Posterior cardinal
  4. Subclavian - from anterior appendage
  5. Lateral abdominal - from posterior appendage
  6. Hepatic portal vein - hepatic portal system
  7. Renal portal vein - renal portal system
• Capillaries that supply blood from one organ to another without passing through the heart

  Portal system
• Drain and take away blood from organ systems then bring back to heart

  Portal veins