CONNECTIVE TISSUE I Bone Osseous Tissue A Composed

CONNECTIVE TISSUE

I. Bone (Osseous Tissue) A. Composed of: 1. Bone cells in cavities (lacunae) 2. Hard matrix of Calcium salts B. Used to protect and support the body

II. Hyaline Cartilage A. "Glass" B. Most common cartilage

III. Elastic Cartilage A. Provides elasticity B. Ex: External ear IV. Fibrocartilage A. Highly compressible B. Ex: Forms discs between vertebrae

V. Dense Connective Tissue A. Mainly Collagen fibers B. Examples: 1. Tendons 2. Ligaments

VI. Areolar Tissue A. Most widely distributed connective tissue B. Soft, pliable tissue C. Contains all fiber types D. Can soak up excess fluid

VII. Adipose Tissue A. Areolar tissue with mostly fat globules B. Many cells contain large lipid deposits C. Functions: 1. Insulates the body 2. Protects some organs 3. Site of fuel storage

VIII. Reticular Connective Tissue A. Network of interwoven fibers B. Forms internal network of lymph organs 1. Lymph nodes 2. Spleen 3. Bone marrow

IX. Blood A. Blood cells surrounded by fluid matrix B. Fibers are visible during clotting C. Functions as the transport vehicle for materials

MUSCLE TISSUE

I. Produces Movement II. 3 Types A. Skeletal muscle 1. Can be controlled voluntarily 2. Cells attach to connective tissue 3. Cells are striated 4. Cells are multinucleated

B. Cardiac muscle 1. Found only in the heart 2. Functions to pump blood 3. Cells attach to each other at Intercalated disks 4. Cells are striated 5. One nucleus per cell

C. Smooth Muscle 1. Involuntary muscle 2. Surrounds hollow organs 3. No striations 4. One nucleus per cell

NERVOUS TISSUE

I. Neurons II. Nuroglia III. Functions A. Send impulses throughout body B. Irritability C. Conductivity