Question

Which of the following is the immediate next part of the stomach?
A) Ileum
B) Jejunum
C) Duodenum
D) Oesophagus

Answer 1

Hint: The stomach is a muscular organ located on the upper left side of the body. Food enters the stomach from the oesophagus. When food reaches the oesophagus’s end, it enters the stomach via a muscular valve known as the lower oesophagal sphincter.

Complete answer:
The stomach secretes acid and enzymes that aid in the digestion of food. Rugae are muscle tissue ridges that line the stomach. The stomach muscles contract on a regular basis, churning food to aid digestion. The pyloric sphincter is a muscular valve that allows food to move from the stomach to the small intestine.

The stomach is located between the oesophagus and the duodenum in humans (the first part of the small intestine). It is located in the upper left quadrant of the abdominal cavity. The diaphragm is pressed against the top of the stomach. The pancreas is located behind the stomach. The greater omentum is a large double fold of visceral peritoneum that hangs down from the stomach's greater curvature. The lower oesophageal sphincter (located in the cardiac region) at the junction of the esophagus and stomach, and the pyloric sphincter at the junction of the stomach and the duodenum, keep the contents of the stomach contained.

The stomach is surrounded by parasympathetic (stimulant) and sympathetic (inhibitor) plexuses (networks of blood vessels and nerves in the anterior gastric, posterior, superior and inferior, celiac, and myenteric regions) that regulate both the secretory and motor (motion) activity of its muscles.

In most higher vertebrates, including mammals, reptiles, and birds, the ileum is the final section of the small intestine. It is located just next to the stomach. The divisions of the small intestine are less clear in fish, and the terms posterior intestine or distal intestine may be used instead of the ileum. Its primary function is to absorb vitamin B12, bile salts, and any digestive products that were not absorbed by the jejunum.

Thus, the answer is option A: Ileum


Note: The ileum is the small intestine's third and final section. It runs parallel to the jejunum and terminates at the ileocecal junction, where the terminal ileum communicates with the cecum of the large intestine via the ileocecal valve. The ileum and jejunum are suspended within the mesentery, a peritoneal formation that houses the blood vessels that supply them (the superior mesenteric artery and vein), lymphatic vessels, and nerve fibres.