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Tissues & Skin
| Question | Answer |
|---|---|
| What are the four main types of tissues in the human body? | Epithelial, connective, muscle, and nervous tissue |
| What is the main focus of epithelial tissue? | It covers body surfaces, lines organs, and forms glands for protection, absorption, and secretion |
| What type of tissue connects and supports other body tissue? | Connective tissue |
| What are the three types of muscle tissue? | skeletal, cardiac, and smooth muscle |
| What does nervous tissue do? | It sends and receives electrical signals through neurons to control body functions |
| What are the two main layers of the skin? | Epidermis (outer layer), dermis (inner layer) |
| What is the function of the epidermis? | It acts as a barrier to protect the body from germs, chemicals, and water loss. |
| What is found in the dermis layer of the skin? | Blood vessels, nerves, sweat glands, oil glands, and hair follicles |
| What is the hypodermis (subcutaneous layer)? | A layer of fat and connective tissue beneath the skin that helps insulate and cushion the body |
| What protein gives skin its strength and waterproof quality? | Keratin |