Tissues

Tissues

1. Epithelial

   • Cover surfaces or line body cavities
   • Form glands
     • Endocrine
       • Secrete into the blood and do not have ducts
     • Exocrine
       • Secrete onto surfaces via ducts
   • Simple or stratified
   • Flattened shape = squamous
   • Cube shape = cuboidal
   • Column shape = columnar
   • Microvilli
     • To increase surface area - boost absorbtion
   • Cilia
     • Create mobility

2. Connective

   • Ground substance
     • Material that supports the cells and fibres
   • Fibres
     • Supports the connective tissue
   • Cells

3. Muscular

   • Skeletal muscle
   • Cardiac muscle
   • Smooth muscle

4. Nervous

   • Neurons
     • Conducting cells : respond to stimuli and conduct impulses
   • Neuroglia
     • Supporting cells