Anaphy

• Four Basic Types of Tissues

  • Epithelium
  • Connective
  • Muscle
  • Nervous
• Epithelium


  • Covers and protects surfaces, both outside and inside the body
• Connective


  • A diverse primary tissue type that makes up part of every organ in the body
• Muscle


  • Makes movement possible by contracting or shortening
• Nervous


  • Responsible for coordinating and controlling many body activities
• Epithelial Tissue


  • Mostly composed of cells with very little extracellular matrix between them
  • Covers body surfaces that include the exterior surface, lining of digestive, urinary, reproductive, & respiratory tracts, heart & blood vessels, and linings of body cavities
  • Has distinct cell surfaces: Free/Apical, Lateral, Basal
  • Has cell and matrix connections
  • Nonvascular, all gases & nutrients carried in the blood reach the epithelium by diffusing from blood vessels across the basement membrane
  • Capable of regeneration
• Major Functions of Epithelium

  • Protecting underlying structures
  • Acting as a barrier
  • Permitting the passage of substances
  • Secreting substances
  • Absorbing substances
• Classification of Epithelium (based on number of cell layers)

  • Simple (single layer of cells)
  • Stratified (more than one layer of cells)
  • Pseudostratified (special type of simple epithelium; appears to be stratified but is not)
  • Transitional (modification of stratified epithelium that can be greatly stretched)
• Types of Epithelium (based on idealized shapes of epithelial cells)

  • Squamous (flat or scale-like)
  • Cuboidal (cube-shaped, about as wide as they are tall)
  • Columnar (taller than they are wide)
• Nonkeratinized (moist) epithelium is roughly cuboidal to columnar when not stretched and squamous-like when stretched
• PHINMA EDUCATION
• HEAD


  Main portion
• BODY/SHAFT


  Enlarged end (often rounded)
• NECK


  Constricted area between head and body
• CONDELY


  Smooth, rounded articular surface
• FACET


  Small, flattened articular surface
• CREST


  Prominent ridge
• PROCES


  Prominent projection
• TUBERCLE/TUBEROSITY


  Knob or enlargement
• TROCHANTER


  Large tuberosity found only on proximal femur
• EPICONDYLE


  Enlargement near or above a condyle
• FORAMEN


  Hole
• CANAL/MEATUS


  Tunnel
• FISSURE


  Cleft
• SINUS


  Cavity
• FOSSA


  Depression