Question

The following are the branches of dorsal aorta. I. Intercostal II. Phrenic III. Coeliac IV. Anterior mesenteric V. Posterior mesenteric Of these, which set of arteries supply the blood to the glands of digestive system?

• A. I and II
• B. III and IV
• C. IV and V
• D. II and III

Answer 1

The Correct Option is B

The arterial system involves aorta, arteries, arterioles and meta-arterioles. The aorta turns towards the back of heart and finally converts into dorsal aorta, abdominal aorta gives off several pairs of arteries, some of them are:
[a] Coeliac artery: Unpaired, divides into three branches.
(i) Left gastric artery: To stomach.
(ii) Common hepatic artery: To pylorus, pancreas, gall bladder, liver, cystic duct, hepatic ducts etc.
(iii) Splenic artery: To pancreas, stomach and spleen.
[b] Anterior or Superior mesenteric:
Unpaired, supplies various parts of small intestine (except superior part of duodenum part of colon and caecum). Its sub branches are:
(i) Pancreo duodenal artery: To pancreas and duodenum.
(ii) Jejunal artery: To jejunum.
(iii) Ilial artery: To ileum and jejunum.
(iv) Iliocolic artery: To ileum and colon.