Tissue. Tissue: Cells that are organized into groups and layers.

Tissue

TissueTissue: Cells that are organized into groups and

layers


layers

4 Kinds: Epithelial, Connective, Muscle, Nervous


layers

4 Kinds: Epithelial, Connective, Muscle, Nervous

Basement Membrane: Underside of tissue, nonliving layer

TissueEpithelial Tissue: Tissue that covers body

surface, organs, and glands.


surface, organs, and glands. Used for protection, secretion, absorption, and

excretion


surface, organs, and glands. Used for protection, secretion, absorption, and

excretionLack blood vessels, divide frequently, tightly packed

Simple Squamous Epithelium


Consist of a single layer of tightly packed, flattened cells



Form in the airs sacs of lungs, blood vessels, and body cavities



Form in the airs sacs of lungs, blood vessels, and body cavities

Thin and delicate, easily damaged

Simple Cuboidal Epithelium


Cube-shaped cells, tightly packed


Cube-shaped cells, tightly packed

Ovaries, kidneys, salivary glands, liver

Simple Columnar Epithelium


Elongated, single layer cells.



Can contain Cilia: for movement of materials



Can contain Cilia: for movement of materials

Female reproductive tubes, small and large intestines

Pseudostratified Columnar Epithelium


Single, elongated layer, but appear stratified because nuclei are located at different levels


Single, elongated layer, but appear stratified because nuclei are located at different levels

Line passages of respiratory system, trap dust and microorganisms

Stratified Squamous Epithelium


Many layers, thick tissue. New cells push older ones further out


Many layers, thick tissue. New cells push older ones further out

Outer layer of skin, esophagus, vagina, anal canal

Stratified Cuboidal Epithelium


Two-three layers of cube like cells


Two-three layers of cube like cells

Sweat glands, Salivary glands

Stratified Columnar Epithelium


Several layers of elongated cells


Several layers of elongated cells

Male urethra

Transitional Epithelium

Transitional EpitheliumSpecialized to contract and expand based upon

tension

Transitional EpitheliumSpecialized to contract and expand based upon

tension

Bladder and ureters

Glandular EpitheliumCells that produce and secrete substances into

ducts and body fluids



Exocrine Glands: secrete their product on open surfaces (Skin, digestive tract)



Exocrine Glands: secrete their product on open surfaces (Skin, digestive tract)

Endocrine Glands: Secrete into tissue fluid and blood

Tissue IllustrationDraw and illustrate the 8 types of specific tissue

Label: Nucleus, Cytoplasm, Basement membrane, and Connective Tissue

Two types of tissue per page, Use Color!!!

Describe cell and give examples of type

Use pg. 96-100 in Text

Tissue. Tissue: Cells that are organized into groups and layers.

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