Questions and Answers
What do exocrine glands secrete their products into?
What are exocrine glands?
Glands that secrete their products into ducts.
What defines an endocrine gland?
A gland that secretes hormones into interstitial fluid and then the blood.
Are endocrine glands vascular?
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List the endocrine glands of the human body.
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What are some organs that are not exclusively endocrine glands but contain hormone-secreting cells?
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What is the basic difference between endocrine and exocrine glands?
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What are the functions of hormones?
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Study Notes
Exocrine Glands
- Secrete products through ducts to body cavities, organ lumens, or the body's outer surface.
- Types include sudoriferous (sweat), sebaceous (oil), mucous, and digestive glands.
Endocrine Glands
- Ductless glands that release hormones directly into interstitial fluid, which then enters the bloodstream.
- Highly vascularized, relying on the cardiovascular system for hormone distribution.
Key Endocrine Glands in Humans
- Major endocrine glands include the pituitary, thyroid, parathyroid, adrenal, and pineal glands.
Additional Hormone-Secreting Organs
- Organs with hormone-secreting cells, but not exclusively endocrine include hypothalamus, thymus, pancreas, ovaries, testes, kidneys, stomach, liver, small intestine, skin, heart, adipose tissue, and placenta.
Fundamental Differences
- Endocrine glands have secretions that diffuse into interstitial fluid and blood. Exocrine secretions flow through ducts to target locations.
Functions of Hormones
- Regulate chemical composition and volume of internal environment.
- Influence metabolism, energy balance, and contraction of smooth/cardiac muscle.
- Control glandular secretions and certain immune system functions.
- Essential for growth, development, reproductive system operation, and establishing circadian rhythms.
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Description
This quiz distinguishes between exocrine and endocrine glands, exploring their functions and characteristics. Learn about the differences in how these glands secrete their products and their roles in the body. Ideal for students studying human anatomy and physiology.
