glands that secrete their products internally so they are transported by the bloodstream are called ____…

glands that secrete their products internally so they are transported by the bloodstream are called ____. fill in the blank
Answer
Brief Explanations:
Endocrine glands secrete hormones directly into the bloodstream. This is a key characteristic of endocrine glands as opposed to exocrine glands which secrete their products through ducts to an external surface or into a body cavity.
Answer:
Endocrine glands