The contraction of gall bladder is due to
- gastrin
- enterogastrone
- secretin
- cholecystokinin.
The Correct Option is D
Approach Solution - 1
Approach Solution -2
Ans. The process of contraction of gall bladder is as follows:
- When food enters the digestive system, the hormone cholecystokinin is produced more often in the small intestine.
- The common bile duct finally empties its contents into the duodenum when the gallbladder contracts in response to the release of cholecystokinin.
- Bile condenses as water in the gallbladder during storage, and some electrolytes are removed.
- Additionally, bile contributes to the removal of bilirubin, a result of hemoglobin metabolism.
- The health-threatening gallbladder stones can develop from too much bilirubin.
Bile is received by the gallbladder from the liver through the hepatic and cystic ducts and is kept there as its primary function.
- A substance called bile helps in digestion. It is a greenish-yellow tint and is rich in bile salts, which the small intestine uses to break down and absorb fats and fat-soluble vitamins.
- The production of the hormone cholecystokinin in the small intestine is stimulated when food enters the digestive system.
- Cholecystokinin causes the gallbladder to constrict, releasing the bile that has been stored there into the common bile duct, which finally empties its contents into the duodenum.
- Bile is concentrated as it is stored in the gallbladder because certain electrolytes and water are absorbed from the gallbladder.
- Bilirubin, a byproduct of the metabolism of hemoglobin, is also removed by the bile. Gallbladder stones from too much bilirubin can injure the health.
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Concepts Used:
Digestive glands - Secretion
Digestion is a type of catabolism that involves the breakdown of food into tiny molecules so that the body may absorb and use it for energy, development and repair. Food gets digested as it travels through the digestive tract of our body. The process of digestion starts in the mouth itself and ends in the large intestine. There are mainly two types of digestion, namely, Mechanical and Chemical digestion.
- Mechanical Digestion: Mechanical digestion is the physical breakdown of large portions of food into smaller particles that digestive enzymes can access. The mouth does mastication, whereas the small intestine performs segmentation contractions. Food is broken down into little molecules by enzymes, which the body may use for chemical digestion. It ignites with food inserted in the mouth to chew it with teeth.
- Chemical Digestion: Chemical digestion is a biological process that breaks down macromolecules in food into smaller molecules that may be absorbed into bodily fluids and delivered to cells all throughout the body. Carbohydrates, proteins etc are required to be chemically digested, thus, conversion of proteins into amino acids, lipids into fatty acids etc are forms of chemical digestion. Chemical digestion cannot be successful without mechanical digestion as it greatly increases the surface area of food particles, allowing digestive enzymes to function more efficiently on them.
Digestive Glands are present inside our digestive tract which secrete digestive juices that help in the process of digestion, i.e, breakdown of complex food particles into simpler ones.
What is a Secretion?
The production and discharge of material from a cell, gland, or organ is referred to as secretion. The secretory products of humans include hormones, enzymes, and saliva. Endocrine glands produce hormones, while gastric glands in the stomach's lining produce enzymes. Hormones are secreted into the bloodstream in order to reach their target.