Question

Which of the following is not secreted by exocrine glands?

• A. Mucus
• B. Saliva
• C. Milk
• D. Hormone

Answer 1

The correct option is (B):

Explanation of the correct option: ​

1. Hormones are secreted from the endocrine glands present in the body.
   
2. The endocrine glands are the ductless glands of the body and hence the hormones are released directly into the bloodstream.
   

Explanation of the incorrect options:

Option (A):

1. Milk secretion occurs from the mammary gland which is an exocrine gland.
   

Option (C):

1. ​Mucus is secreted from the mucosa cells that is present around the linings of different organs.
   
2. It protects the cells present on the inner linings.
   

Option (D):

1. Saliva is secreted in the mouth from the salivary glands.
   
2. There are three pairs of salivary glands around the mouth and the duct of these glands end at the mouth where saliva is secreted.
   

Final Answer: Hormone is not secreted by the exocrine glands.