Question

What is ductless glands?

Answer 1

Ductless glands:

1. The glands which do not have ducts and pour their secretion directly into the blood are called ductless glands.
2. They are also known as the endocrine glands and are responsible for the secretion of chemical messengers known as hormones.

For example:

1. Pituitary glands secrete trophic hormones to stimulate other glands.
2. Thyroid glands secrete thyroxine and calcitonin.