Electrolysis Practice Exam

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Which type of glands are known for being ductless?

Exocrine glands
Sebaceous glands
Endocrine glands
Apocrine glands

The correct answer is: Endocrine glands

Endocrine glands are known for being ductless because they release hormones directly into the bloodstream rather than through ducts. This allows for hormones to be efficiently transported to various tissues and organs throughout the body, where they exert their effects. This direct release mechanism is crucial for regulating numerous physiological processes, including metabolism, growth, and mood. In contrast, exocrine glands do possess ducts and secrete their products, such as enzymes or sweat, onto epithelial surfaces or into body cavities. Sebaceous glands are a type of exocrine gland that specifically secretes oil into hair follicles, while apocrine glands, another type of exocrine gland, release their secretions into hair follicles in specific areas of the body, such as the armpits and groin. These glands operate through a different mechanism compared to endocrine glands and thus do not fit the criteria of being ductless.