Question

Identify the correct path taken by food in the alimentary canal.
1) Buccal cavity → pharynx → oesophagus → small intestine
2) Mouth → buccal cavity → pharynx → oesophagus - stomach - small intestine
3) Mouth → larynx oesophagus → small intestine → stomach
4) Buccal cavity → larynx → pharynx - stomach → small intestine​

Answer 1

Answer:

Mouth → buccal cavity → pharynx → oesophagus - stomach - small intestine

Explanation:

The digestive system starts with the mouth, followed by the food pipe or oesophagus that opens into the stomach. The stomach secretes acid and powerful enzymes that continue the process of breaking the food down into simpler substances. From there, food moves to the small intestine, which is made up of three segments, i.e., the duodenum, jejunum, and ileum.

Enzymes released by the pancreas and bile from the liver are poured in here. The duodenum is largely responsible for the continuing breakdown process, with the jejunum and ileum being mainly responsible for the absorption of nutrients into the bloodstream. The colon (large intestine) is a five to the seven-foot long muscular tube that connects the small intestine to the rectum. It is made up of the cecum, the ascending (right) colon, the transverse (across) colon, the descending (left) colon and the sigmoid colon, which connects to the rectum. The large intestine is a highly specialized organ that is responsible for processing waste so that defecation (excretion of waste) is easy and convenient through the anus.

Answer 2

Answer:

Option B)Mouth → Buccal Cavity → Pharynx → Oesphagus → Stomach → Small Intestine

Hope it helped