Question

Find the odd one out giving the reason:

Pituitary, adrenal, thyroid, salivary glands.

Answer 1

The odd one out is the salivary gland.

Explanation of the odd one out:

1. The salivary gland is an exocrine gland.
2. The secretion of the exocrine gland is sent through the duct directly to the target or specific organ.
3. The salivary gland releases salivary amylase in the buccal cavity which helps in the breakdown of starch.

Explanation of the incorrect options:

1. The pituitary gland, thyroid gland, and adrenal gland are all endocrine glands.
2. Endocrine glands are ductless glands as their secretion is directly poured into the blood.
3. The pituitary gland is located at the base of the brain, it releases Thyrotropic hormone (TTH), and Growth hormone (GH). it controls the growth and controls the activity of other glands so it is called the master gland.
4. The thyroid is located in the neck. The thyroid releases thyroxine hormone which stimulates respiration and growth rate.
5. Adrenal- is located above both kidneys like a cap. It releases adrenaline hormone that helps the body to fight stress.

Final answer- The odd one out is the salivary gland.