Glands

A gland is a group of cells in the body that synthesizes substances such as hormones, enzymes, and sweat, and releases them into the bloodstream or for external use. Glands are essential for maintaining homeostasis and regulating various bodily functions.

Types of Glands

There are two main types of glands in the human body:

1. Exocrine Glands: These glands secrete their products into ducts, which then carry the secretions to the body's surface or into body cavities. Examples of exocrine glands include sweat glands, salivary glands, and sebaceous glands.
2. Endocrine Glands: These glands secrete hormones directly into the bloodstream, where they are carried to target organs or tissues. Endocrine glands include the pituitary gland, thyroid gland, adrenal glands, and pancreas.

Functions of Glands

Glands perform various functions in the body, including:

• Regulating metabolism and growth
• Maintaining fluid and electrolyte balance
• Controlling reproductive processes
• Regulating stress responses
• Aiding in digestion and nutrient absorption
• Controlling blood sugar levels

Study Guide

To study and understand the topic of glands, consider the following key points:

1. Identify and differentiate between exocrine and endocrine glands.
2. Learn about the specific glands in the human body and their functions.
3. Understand the role of hormones and their effects on target organs and tissues.
4. Explore the connection between glands and various bodily processes, such as digestion, reproduction, and metabolism.
5. Investigate disorders or diseases related to glandular dysfunction and their impact on overall health.