Practice question · Match the pairs
Match each gland type to how it delivers its secretion.
- Exocrine gland
- Endocrine gland
- Sweat gland
- Thyroid gland
- Onto the skin surface through a duct
- Hormones into the circulation
- Through a duct onto a surface
- Into the bloodstream, with no duct
Hints
- The presence or absence of a duct is the dividing feature.
- Two of these are specific examples of the two general types.
Show the answer
- Exocrine gland → Through a duct onto a surface
- Endocrine gland → Into the bloodstream, with no duct
- Sweat gland → Onto the skin surface through a duct
- Thyroid gland → Hormones into the circulation
Why
The duct is what distinguishes the two, and it determines everything else, including whether the gland needs a rich blood supply. Sweat and thyroid are the standard examples of each.
Practise Epithelial Tissue and Glands
The app has 3 more questions on this lesson, and keeps your place in the course. Biology I is free to start.
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