major types of tissue- epithelial, connective, muscular, nervous

functions of epithelial tissue- protection, secretion, absorption, filtration, excretion, senses

Structure:

simple- one layer

squamous- flat cells

stratified- multiple layers

cuboidal- cube shaped

columnar- column shaped

simple squamous shape- single layer of flat cells

simple squamous function- diffusion and filtration

simple squamous location- found in air sac of the lungs

simple cuboidal shape- single layer of cube shaped cells

simple cuboidal function- secretion and absorption

simple cubiodal location- kidney tubules, surface of ovaries

simple columnar shape- single layer of long cells, have goblet cells and microvilli

simple columnar function- secretion and absorption

simple columnar location- digestive tract and uterus goblet cells

stratified squamous shape- several layers, flat

stratified squamous function- protection

stratified squamous location- lines body cavities; skin and mouth

goblet cells- secrete mucus

microvilli- projections that increase the cell's surface area

Pseudostratified Columnar:

pseudostratified columnar shape- single layer with nuclei at various levels, can have goblet cells and cilia

pseudostratified columnar function- secretion and cilia-aided movement

pseudostratified columnar location- linings of respiratory passages, tubes of reproductive system

Transitional Epithelium:

transitional epithelium shape- thick, layered cuboidal cells

transitional epithelium function- stretchable tissue, forms barrier to block diffusion transitional epithelium location- urinary bladder

glandular epithelium- cells that are specialized to produce and secrete substances, makes up the body's glands

Connective Tissue:

connective tissue - most abundant tissue in your body, binds structures together

connective tissue function- provides support, protection, framework, fills space, stores fat, produces blood cells, fights infection

connective tissue composed of- scattered cells within a matrix, a ground substance and fibers

collagen and elastin- connective tissue

common types of connective tissue cells- mast cells, macrophages, fibroblasts

Types of Connective Tissue:

collagenous fibers- strong, flexible, not very elastic, found in bones, ligaments

elastic fibers- not as strong, very elastic, found in ears, vocal

areolar tissue (loose connective tissue)- binds skin to underlying organs, forms thin membranes throughout body

adipose tissue (fat)- protective cushion, insulation to preserve body heat, stores energy

fibrous connective tissue- thick collagenous fibers and fine network of elastic fibers- few cells, poor blood supply, thus slow healing

Important Tissue:

bone tissue- osseus tissue, rigid due to mineral salts

blood tissue- circulates throughout the body

muscle tissue- skeletal, cardiac, smooth

skeletal tissue- striated and voluntary

smooth tissue- hollow organs, involuntary

cardiac tissue- wall of the heart

Cartilage:

cartilage- all cartilage cells are called chondrocytes

hyaline cartilage- covers ends of joints, padding

elastic cartilage- external ear, larynx

fibrocartilage- tough, shock absorbing, located between vertebrae

Nerve:

nerve tissue- found in the brain, spinal cord, and nerves

neurons- transmit impulses

neuroglia- protection and support