4 Accessory Organ

Question 1

Salivary Glands

Answer 1

• Secretes saliva: moisten mouth, lubricates food, assist in forming ‘bolus’, contains enzymes.
• Chemical digestion of carbohydrates
• Cleansing action lubricates the passage of food

Question 2

Liver

Answer 2

• Stores glycogen, iron and vitamins
• Produces and secretes bile into the gall bladder
• Excretes hormones and drugs
• Detoxification of blood (cleansing by converting toxins into waste)
• Formation of bile salts

Question 3

Gall Bladder

Answer 3

• Stores bile til required.
• Releases bile in the presence of chyme. (Bile breaks up large fat droplets)

Question 4

Pancreas

Answer 4

• Produces enzymes to help break down food.
• Produces insulin and glucagon to maintain blood glucose levels.
• Secretes bicarbonate ions to neutralise the acidic chyme that stomach churns out.