1 / 29

Chapter 6:

Chapter 6:. Tissues and Membranes. A. 4 types of tissues. Epithelial tissue Connective tissue Nervous tissue Muscular tissue. I. Epithelial Tissue (p. 33). Covers the body - “sheets” (except for glands) Lines organs and body cavities No blood supply Apical Surface – free surface

yeva
Download Presentation

Chapter 6:

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Chapter 6: Tissues and Membranes

  2. A. 4 types of tissues • Epithelial tissue • Connective tissue • Nervous tissue • Muscular tissue

  3. I. Epithelial Tissue (p. 33) • Covers the body - “sheets” (except for glands) • Lines organs and body cavities • No blood supply • Apical Surface – free surface • Basement Membrane – acts as a anchor to cells • Function: protects, absorbs, secretes, filters • Examples: skin, glands, lining of the digestive and respiratory tracts

  4. Types of Epithelial Tissue • Classified according to shape 1. Squamous – thin and flat cells

  5. Cuboidal Epithelium • Cells are cube-like

  6. 3. Columnar Epithelium • Cells are tall and narrow (kidney)

  7. Classified also by layers Simple – one layer Stratified – multi layered

  8. Ciliated Pseudostratified columnar

  9. Epithelial Tissue Practice

  10. II. Connective Tissue (p. 34) • Most abundant • Supports and joins various part of the body • Good blood supply except tendons and ligaments • Examples: cartilage, bone, blood, ligaments, tendons

  11. Connective Tissue • Intercellular matrix – fills area between cells (non-living) able to bear weight • may be liquid, semi-solid, gel, hard • able to bear weight, stretch, withstand abuse

  12. Connective Tissue • B. Classification of Connective Tissue • 1. Bone (Osseous tissue) • a. Bone cells are in tiny cavities called lacunae surrounded by layers of calcified matrix • b. Protect and Support

  13. Connective Tissue - Cartilage • 1. Hyaline Cartilage: rubbery & smooth; somewhat hard • found in larynx, attaches ribs to sternum, covers ends of bone

  14. 2. Fibrocartilage • Discs in the spinal column

  15. 3. Elastic Cartilage a. found in external ear and nose

  16. Dense Fibrous Tissue • Makes up tendons and ligaments

  17. Loose Connective Tissue • Areoler tissue • Anchors body parts • Surround organs

  18. Connective – Adipose Tissue • Stores Fat • Protection from extreme temperatures

  19. III. Nervous Tissue • Carry an impulse • Two types of cells: • Neurons: • Neuroglia: support the neurons

  20. Nervous Tissue • Receive and conduct impulses • Neuron – nerve cells

  21. IV. Muscle Tissue (p. 33) • Made of specialized cells that can contract. • 3 types of :

  22. a. Skeletal Muscle • Voluntary • Striated • Movement • Multi-nucleated

  23. 2. Smooth muscle • Not voluntary • Found in various organs • Non- striated

  24. 3. Cardiac muscle • Heart • Striated • Involuntary • One nuclei per cell • Intercalated discs

  25. Membranes: 3 Types: (p. 38) • 1. Cutaneous Membranes • Skin • Epidermis: Stratified epithelium tissue • Dermis: connective tissue

  26. 2. Mucous Membrane (muscosa) • - Simple epithelium tissue • Line cavities that are open to the external environment • Many produce mucous • Lining of mouth, digestive tract, reproductive tract, urinary tract, respiratory tract

  27. 3. Serous Membrane (Serosa) • Named according to location • Line cavities that are not open to the external environment • Visceral layer: the layer against the internal organs (organs=viscera) • Parietal layer: the layer against the inside wall of the cavity

More Related