Connective Tissue

Connective Tissue

1. CONNECTIVE TISSUE PROPER

   • LOOSE
     • Areolar
       • "Packing" material of the body, Strength, Elasticity & Support
         • Around blood vessels, nerves & organs
     • Adipose
       • "Fat"Insulates agains heat loss,Energy reserves, Protects organs
       • Follows areolar con. tissue, around heart & kidneys, within abdomen & in breasts
     • Reticular
       • Binds smooth muscle cells, Filters & removes worn-out blood cells in spleen, & microbes in lymph nodes
       • Spleen, Lymph nodes, red bone marrow, around blood vessels & muscles
   • DENSE
     • Regular
       • Provides strong attachment, whitstands pulling in one direction
         • Tendons (M to B), Ligaments (B to B)
     • Irregular
       • Withstands tension in many directions
         • Dermis of the skin, fibrous pericardium of heart, joint capsule
     • Elastic
       • Allows tissue to recoil after stretching,
         • Lung tissues walls of large arteries, trachea

2. CARTILAGE

   • Hyaline
     • Provides smooth surfaces for movement at joints, flexibility, weak
     • Most abundant; ends of long bones, nose, trachea, larynx, forms growth plates
   • Elastic
     • Strength &Elasticity, maintains shape of strictures
     • Part of external ear, epiglottis
   • Fibrocartilage
     • The strongest part, Strength & rigidity
       • Intervertebral discs, menisci of knee, pubic symphysis
   • Resists tension, compression & shear, Embryonic skeleton

3. BONE

   • Hard, calcified matrix containing collagen fibres; Osteoblasts- Osteocytes; Stores & Protects
     • Bones
   • Osseous Tissue

4. BLOOD

   • Most atypical CT, classified as CT because it consists of blood cells surrounded by blood plasma; RBC , WBC & platelets
     • Within blood vessels, within heart

5. Made of: Extracellular matrix (ground substance & fibres) + Cells

6. Binding & Supporting, Ptotecting, Insulating, Storing & Transporting