Question

answer the following question.
1. what is bolus?
2. name the organs that Constitute the alimentary canal.
3. what is the secretion of liver called?
4. what are the three parts of the small intestine?
5. in which part of the small intestine does the maximum digestion of food takes place?
6.what is the role of large intestine in humans?​

Answer 1

1. a small rounded mass of a substance, especially of chewed food at the moment of swallowing.
2. The alimentary tract of the digestive system is composed of the mouth, pharynx, esophagus, stomach, small and large intestines, rectum and anus. Associated with the alimentary tract are the following accessory organs: salivary glands, liver, gallbladder, and pancreas.
3. Bile is a unique and vital aqueous secretion of the liver that is formed by the hepatocyte and modified down stream by absorptive and secretory properties of the bile duct epithelium. Approximately 5% of bile consists of organic and inorganic solutes of considerable complexity

1. The small intestine consists of three parts. The first part, called the duodenum, connects to the stomach. The middle part is the jejunum. The third part, called the ileum, attaches to the colon.
2. The duodenum is the first section of the small intestine and is the shortest part of the small intestine. It is where most chemical digestion using enzymes takes place. The jejunum is the middle section of the small intestine.
3. The large intestine has 3 primary functions: absorbing water and electrolytes, producing and absorbing vitamins, and forming and propelling feces toward the rectum for elimination.