Question

An accessory excretory organ is

• A. Stomach
• B. Pancreas
• C. Liver
• D. Spleen

Answer 1

The correct option is C

Liver

The correct option is C.

Explanation of the correct option:

1. The liver is a large organ present on the upper right side of the human body. It is responsible for the release of a product called bile.
2. It also helps in the excretion of wastes together with the wastes produced in the digestive system.
3. It converts ammonia to urea which is excreted through urine.
4. The organs which are involved in the removal of waste products from our body apart from the main excretory system (including kidneys, urinary bladder, ureters, and urethra) are known as the accessory excretory organs.
5. Apart from the liver, lungs and skin also act as accessory excretory organs.

Explanation of the incorrect options:

Option (A):

1. The stomach is a J-shaped pouch-like structure that is an important organ of the human digestive system.
2. The stomach is the site for digestion with the help of digestive juices.
3. It has no role in excretion.

Option (B):

1. The pancreas is a leaf-like structure present in the upper abdomen which plays an important role in digestion and regulation of sugar levels in the blood.
2. It has no role in excretion.

Option (D):

1. Spleen is a tiny organ present in the upper abdomen, which is responsible for the regulation of blood in our body.
2. It is the site of the synthesis of white blood cells, which protects our body from germs.

Final answer: An accessory excretory organ is a liver.