Anatomy and Physiology: The Microscope and Tissues

Calculation of Total Magnification Multiply the magnification of the ocular lens with the magnification of the objective lens ? 10X 10X

Calculation of Total Magnification Multiply the magnification of the ocular lens with the magnification of the objective lens ? 10X 40X

Calculation of Total Magnification Multiply the magnification of the ocular lens with the magnification of the objective lens ? 10X 100X

Field of View 1X

Field of View 10x

Field of View 50x

The Classification of Tissues What is a tissue? A group of cells working together 4 types of tissues: Epithelial Tissue Muscle Tissue Connective Tissue Nervous Tissue

Epithelial Tissue Covers surfaces of the body 3 types: Squamous Functions: Protection Absorption Filtration Excretion Secretion Sensory reception 3 types: Squamous Cuboidal Columnar * Can be Simple or Stratified

Simple Squamous

Stratified Squamous

Simple Cuboidal

Stratified Cuboidal

Simple Columnar

Muscle Tissue 3 types: Smooth Skeletal Cardiac

Smooth Muscle: Found in the walls of hollow organs: Digestive tract No striations are visible Uninucleate

Skeletal Muscle Attaches to skeleton Under voluntary control Moves the limbs and other external body parts Multinucleate Obvious striations Nuclei lie on the periphery of the cells

Cardiac Muscle Found only in the heart Striations Branching and uninucleate Intercalated discs

Connective Tissue Numerous kinds of connective tissues: Cells spaced out in a non-living matrix

Connective Tissue Numerous kinds of connective tissues: Areolar Cartilage Bone Blood

Nervous Tissue

Neurons Axon Dendrite Cell Body