Question

Trace Blood Pathway.....

1) Rectum to Spleen

2) Lung of mother to inferior vena cava of fetus

Answer 1

1.Blood pathway - Rectum to spleen.

Arterial supply - 1. Descending aorta.

2. Coeliac trunk - splenic artery - a branch to spleen.

3. Right common iliac artery. - Right internal iliac artery. - supplies rectum.

4. Left common iliac artery - Left internal iliac artery- supplies rectum.

Venous drainage -

Rectum - sigmoid and rectal veins. - inferior mesentric vein - hepatic portal vein.

Speen - splenic vein - hepatic portal vein - inferiorvenacava.

2. From lungs - pulmonary veins - left atrium - left ventricle - aorta - systemic circulation - umbilical arteries - placenta - umbilical venosus - ductus venosus - inferiorvenacava.