Difference between exocrine and endocrine glands?

Exocrine glands have ducts and release enzymes/secretions; endocrine glands are ductless and release hormones into blood.

A non-nutrient chemical messenger secreted in trace amounts that acts on a specific target tissue via receptors.

Where is the pituitary gland located?

In the sella turcica, a bony cavity of the sphenoid bone.

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