Digestion - Accessory Organs of the Digestive tract
6 important questions on Digestion - Accessory Organs of the Digestive tract
Label the attached diagram with the accessory organs of the digestive tract.
What are the salivary glands? What do they do?
What do they do?
- They continuously secrete saliva
- As part of the preparatory phase of digestion the salivary glands increase the secreation of saliva in response to the sight or smell of food.
- salivary glands make the saliva in your mouth, which is very important for the health of your mouth and teeth and also for the first stages of digestion of food.
What is saliva? What does it do?
water
digestive enzyme
mucus
The functions of saliva include:
starting the chemical digestion of carbohydrates
Moistens and lubricates food.
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What is the liver? What does it do? Label the right lobe of the liver, the left lobe and where the Gallbladder is
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the livers main functions related to digestive system are:
Bile production
Metabolism of carbohydrate, fat and protein.
Detoxification of potentially harmful chemicals
Excretion of bilirubin, cholesterol, hormones and drugs
The liver processes nutrients from food to make energy and build essential body chemicals. It breaks down carbohydrates, fats, and proteins, storing or releasing them as needed. It also removes waste products, drugs, and hormones by turning them into forms that can leave the body in bile (faeces) or through the kidneys (urine). Overall, the liver cleans the blood, controls energy supply, and helps the body get rid of toxins.
What is the gallbladder and bile? What are the colours of these items? What do they do?
Bile is a bitter yellowish green fluid produced by the liver and stored in, concentrated and secreted by the gall bladder
The main function of bile is the emulsification of fats. Emulsification of fats means breaking large fat globules into much smaller droplets so they can mix more easily with water and be digested by enzymes.
What is the pancreas? ![]()
What does it do?
Endocrine- Secretion of insulin and glucagon directly into the blood.
Exocrine: section of pancreatic juice via the pancreatic duct in the duodenum. The ph of the pancreatic juice helps to neutralise the acid chime from the stomach, there proteching the small intestine from damage by acidity.
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