Nov animal tissues

• What is the term for a group of differentiated and specialized cells?

  A tissue
• What is the study of tissue called?

  Histology
• How many types of specialized tissue are there in the adult human body?

  Four types
• What are the four types of specialized tissue in the adult human body?

  1. Epithelial tissue
  2. Connective tissue
  3. Muscular tissue
  4. Nervous tissue
• What is the primary function of epithelial tissue?

  To cover and line external and internal surfaces
• What is the function of connective tissue?

  To bind organs and organ components together
• What is the main function of muscular tissue?

  To enable movement through contraction
• What is the role of nervous tissue?

  To react to stimuli and facilitate communication
• How are epithelial cells arranged?

  In sheets of one or more layers
• What is the basement membrane?

  A strong non-cellular layer made up of collagen fibers
• Why do epithelial cells remain moist?

  To withstand wear and tear and replace worn cells
• What is the term for the epithelium that lines the inner spaces of the body and organs?

  Endothelium
• How is epithelial tissue classified?

  • According to shape:

  1. Squamous/Pavement Epithelium
  2. Cuboidal Epithelium
  3. Columnar Epithelium
  4. Ciliated Epithelium
  5. Glandular Epithelium
• What is the structure of squamous epithelium?

  A single layer of thin, flattened cells
• What is the function of squamous epithelium?

  Ideal for diffusion of gases
• Where is cuboidal epithelium commonly found?

  In glands and structures with secretory functions
• What is the primary function of cuboidal epithelium?

  Usually a secretory function
• What is the structure of columnar epithelium?

  Column-shaped and longer than they are wide
• What is the function of columnar epithelium?

  Plays a role in the absorption of food
• What is ciliated epithelium and where is it found?

  Comprises epithelial cells with cilia at the free edges
• What is the function of ciliated epithelium?

  Moves substances through ducts and protects the respiratory tract
• What are unicellular glandular epithelium cells called?

  Goblet cells
• What is the function of goblet cells?

  Produce mucus to lubricate intestines and respiratory passages
• What is multicellular glandular epithelium composed of?

  Clusters of cells with no non-glandular epithelium between them
• What is the function of multicellular glands?

  Produce enzymes, hormones, sweat, wax, and saliva
• What is layered epithelium?

  Cells of various shapes and sizes arranged in layers
• What is the function of areolar connective tissue?

  To bind organs and support structures
• What is adipose tissue commonly known as?

  Fat tissue
• Where is layered epithelium found?

  On the surface of the skin (epidermis)
• What is the primary function of connective tissue?

  To bind organs and organ components together
• What is the extracellular matrix in connective tissue?

  A non-living substance that holds cells together
• What are the three main groups of connective tissue?

  1. Connective Tissue Proper

  • Areolar
  • Adipose
  • Dense connective tissue

  1. Skeletal Tissue

  • Cartilage
  • Bone

  1. Blood
• What types of fibers are found in connective tissue?

  White/collagen fibers and yellow/elastic fibers
• What is the primary function of adipose tissue?

  Storage of fat for fuel and insulation
• What is the structure of tendons?

  Made up of almost all white collagen fibers arranged in parallel bundles
• What is the function of tendons?

  To attach muscle to bone
• What is the structure of ligaments?

  Composed of white collagen fibers and yellow elastic fibers
• What is the function of ligaments?

  To attach bone to bone and restrict movement
• What is yellow elastic connective tissue used for?

  To enable organs to stretch and contract
• Where is yellow elastic connective tissue found?

  In the vocal cords, trachea, bronchi, and blood vessels