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Physiology/Wk 7

Tissue & Skin-wk 4

QuestionAnswer
What are the four main types of tissues in the human body? Epithelial tissue – covers and protects surfaces. Connective tissue – supports and connects parts of the body. Muscle tissue – allows movement. Nervous tissue – sends and receives messages.
What is the structure and function of epithelial tissue? Epithelial tissue forms protective layers on body surfaces and lines organs. It controls absorption, secretion, and protection — for example, the skin’s outer layer (epidermis) is epithelial tissue.
What are the main layers of the skin, and what does each do? Epidermis: outer layer; protects against germs and water loss. Dermis: middle layer; contains nerves, blood vessels, and glands. Hypodermis (subcutaneous): deepest layer; stores fat and insulates the body.
How does the skin help maintain homeostasis? The skin helps to regulate body temperature (by sweating or constricting blood vessels), protect from infection and UV rays, and prevent dehydration by reducing water loss.
Created by: ksdean4547
 

 



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