00:01
In the question the given is diagram about the digestive system and we need to label the following a, b, c, d.
00:11
So human digestive system is shown.
00:20
A is mouth.
00:25
C is esophagus.
00:30
D is stomach.
00:35
F is large intestine.
00:40
Then b is liver e is pancrea which is just below the stomach g is small intestine so this is how we complete the answering of first question so we have labeled all the parts here second question is what is going to separate the sections of digestive system.
01:26
So digestive system is lined by peritoneum wall or peritoneum muscle also we can say.
01:40
Also the each section of the digestive system is separated by rings of muscle called as sphincter.
01:55
So this spinter will separate each section, for example, from between stomach and small intestine.
02:03
And by opening and closing of this spinter, only the food will move further into the digestive system.
02:12
So the contraction and opening and closing of these spinters causes the food to move.
02:17
That is what the answer for our second question.
02:22
Correct.
02:22
First done, second done.
02:23
Third question is that what type of mechanical digestion take place in mouth, stomach and small intestine.
02:34
So the first mechanical digestion starts in mouth where there is achieving or also called as mastication that grinds the food.
02:48
So grinding procedure is done where the food has been broken down into the small small pieces.
02:54
Then into the stomach churning is done that yields the mixing of a bolus leading to formation of kind so technically small intestine is not involved in the mechanical digestion but there are still segmentation goes on in small intestine which is a part of mechanical digestion where segmentation means the food is going to move back and forth which basically helps in mixing and absorption.
03:33
So this is going to help in mixing and absorption of food...