The exocrine glands and the endocrine are the glands involved in the release of substances. The correct blanks are endocrine and exocrine.
What are endocrine and exocrine glands?
Endocrine glands lack ducts and produce and secrete substances directly into the blood system that reaches the targeted organs and tissues. The pituitary and the thyroid glands are endocrine glands.
The exocrine glands are the glands that have ducts and release their secretions through them to the targeted organ and including the salivary gland and sweat gland.
Therefore, the difference between the glands is in the duct.
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