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

Options

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

Answer

B

Explanation

The arterial system invovles 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.
(i) Coeliac artery Unpaired, divides into three branches.
(a) Left gastric artery To stomach
(b) Common hepatic artery To pylorus, pancreas, gall bladder, liver, cystic duct, hepatic ducts etc.
(c) Splenic artery To pancreas, stomach and spleen.
(ii) Anterior or Superior mesenteric Unpaired, supplies various parts of small intestine (Except superior part of duodenum part of colon and caecum).
Its subbranches are
(a) Pancreaticoduodenal artery To pancreas and diodenum.
(b) Jejunal artery To jejunum.
(c) Ilial artery To ileum and jejum,
(d) Heocolic artery To ileum and colon.