3. Write few (3) main points about following system of frog.
(a) Digestive system
(b) Arterial system
(c) Respiratory system
Answers
Answer:
(a) Digestive system
-- The developing digestive tract may be divided into foregut (esophagus, stomach, duodenum, liver, pancreas, gall bladder) and midgut/hindgut (intestine) domains. The foregut-derived organs play critical roles in processes such as digestion, glucose homeostasis, and detoxification. Therefore, congenital defects or disease in these organs (e.g., diabetes, pancreatitis, fatty liver disease, biliary atresia, gall stones and gastric/pancreatic cancer) are the cause of substantial morbidity and mortality worldwide . To ameliorate such afflictions, translational researchers seek to develop regenerative therapies and engineer replacement tissues in vitro. Progress in these areas has been profoundly influenced by models of the normal process of foregut organ specification and morphogenesis in the embryo .
(b) Arterial system
It consists of all the arteries in body. The arteries carry blood away from the heart. The arterial system in frog beings with the truncus arteriosus which arises from top right region of ventricle.
(c) Respiratory system
The frog has three respiratory surfaces on its body that it uses to exchange gas with the surroundings: the skin, in the lungs and on the lining of the mouth. While completely submerged all of the frog's respiration takes place through the skin.