Human Tissue Histology and Microscopy Quiz

Epithelial Tissue Overview

• Epithelial tissue is the type of tissue that covers body surfaces and lines cavities such as organs and blood vessels.
• It serves as a protective barrier and plays a role in absorption, secretion, and sensation.

Main Functions of Epithelial Tissue

• Provides protection against mechanical injury, pathogens, and chemical exposure.
• Facilitates absorption of nutrients and secretion of various substances like hormones and enzymes.
• Aids in sensation through specialized epithelial cells that can detect changes in the environment.

Study of Tissues

• Histology is the scientific study of tissues, examining their structure and function under a microscope.

Forms of Epithelial Tissue

• Two main forms exist:
  • Covering and Lining Epithelium: Forms the outer layer of skin and lines cavities and organs.
  • Glandular Epithelium: Comprises glands that secrete hormones, enzymes, and other substances.

Preparation for Microscopic Viewing

• Tissue samples must be fixed, stained, and sliced into thin sections to be examined under a microscope, allowing for detailed structural analysis.