Tissues

In biology, a tissue is a group of similar cells that work together to perform a specific function. There are four main types of tissues in the human body: epithelial, connective, muscle, and nervous.

Epithelial Tissue

Epithelial tissue covers the body surface and lines internal organs. It serves as a protective barrier and also helps in the absorption and secretion of substances. Examples include the outer layer of the skin and the lining of the digestive tract.

Connective Tissue

Connective tissue provides support and connects different structures in the body. It includes bone, cartilage, tendons, ligaments, and adipose (fat) tissue. Connective tissue also plays a role in transporting nutrients and waste throughout the body.

Muscle Tissue

Muscle tissue is responsible for movement. There are three types of muscle tissue: skeletal, cardiac, and smooth. Skeletal muscle is attached to bones and allows for voluntary movements, while cardiac muscle is found in the heart and is responsible for pumping blood. Smooth muscle is found in the walls of internal organs and helps in involuntary movements, such as in the digestive system.

Nervous Tissue

Nervous tissue is found in the brain, spinal cord, and nerves. It is made up of neurons and is responsible for transmitting and receiving signals in the body. Nervous tissue enables the body to respond to stimuli and coordinate various functions.

Study Guide

1. What is the function of epithelial tissue?
2. Give examples of connective tissue in the human body.
3. What are the three types of muscle tissue?
4. Where is nervous tissue found in the body?
5. How do tissues work together to maintain homeostasis in the body?

Understanding the different types of tissues and their functions is essential for comprehending the complex organization of the human body. Studying tissues can also provide insights into various diseases and conditions that affect specific tissues.

[Tissues] Related Worksheets and Study Guides:

• Cells, tissues and organsScience • Fifth Grade