Introduction to Endocrine and Exocrine Glands
Glands are specialized organs responsible for producing and releasing substances that regulate numerous bodily processes. They are broadly categorized into endocrine and exocrine glands based on their secretion methods and targets. Endocrine glands secrete hormones directly into the bloodstream, affecting distant target organs. In contrast, exocrine glands release their products through ducts to specific locations, such as body surfaces or cavities.
Differences Between Endocrine and Exocrine Glands
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FAQs on Difference Between Endocrine and Exocrine Glands
1. Define endocrine glands.
Endocrine glands are ductless glands that secrete hormones directly into the bloodstream, regulating various physiological activities.
2. Define exocrine glands.
Exocrine glands have ducts and secrete substances like enzymes, sweat, or mucus onto body surfaces or into body cavities.
3. Why is the pancreas known as a mixed gland?
The pancreas functions as both an endocrine gland, secreting hormones like insulin into the blood, and as an exocrine gland, releasing digestive enzymes through ducts into the small intestine.
4. Are sweat glands endocrine or exocrine?
Sweat glands are exocrine glands that secrete sweat onto the skin's surface to regulate body temperature.
5. What are the two types of sweat glands?
The two types of sweat glands are eccrine glands, which produce a watery secretion to cool the body, and apocrine glands, which secrete a thicker fluid responsible for body odor.
6. What is an example of an endocrine gland?
The thyroid gland is an example of an endocrine gland; it secretes hormones that regulate metabolism.
7. Which is the longest gland in the human body?
The pancreas is the longest gland in the human body, measuring about 6 inches in length.
8. What is the master gland?
The pituitary gland is often referred to as the "master gland" because it controls other endocrine glands, regulating vital functions.
9. Which gland secretes insulin?
The pancreas secretes insulin, a hormone that helps regulate blood sugar levels.
10. What is the difference between the endocrine and exocrine pancreas?
The endocrine pancreas secretes hormones like insulin and glucagon into the bloodstream to regulate blood sugar, while the exocrine pancreas releases digestive enzymes into the small intestine via ducts to aid in digestion.
