Lab 4: Tissues

simple squamous epithelium location

lungs

simple cuboidal epithelium location

kidney in renal tubules

simple columnar epithelium locations

intestines

pseudostratified columnar epithelium location

trachea

hyaline cartilage location

ends of long bones

adipose tissue location

within bone marrow, under skin

dense regular connective tissue location

ligaments

areolar tissue location

surrounds blood vessels, wrapping organs

elastic cartilage location

ear and epiglottis

simple squamous epithelium function

diffusion and filtration of substances

simple cuboidal epithelium function

secretion and absorbtion of materials

simple columnar epithelium function

secretion and absorbtion of materials

ciliated pseudostratified columnar epithelium function

secretion and movement of materials such as mucus

hyaline cartilage function

provides smooth surface for joints

adipose tissue function

stores energy by storing fat

dense regular connective tissue function

links various tissues together

areolar tissue function

holds organs in place

elastic cartilage function

provides flexible support allowing structures to bend

epithelial tissue characteristics

avascular, can regenerate, forms basement membrane, between lumen and basement membrane

squamous

squashed or flattened

cuboidal

cube shaped with large central nucleus

columnar

long and rectangular with nucleus in bottom 1/3 of cell

simple

one cell layer

stratified

multilayered, only bottom layer touches basement membrane

pseudostratified

looks layered but all cells touch basement membrane

goblet cells

mucous producing cells

cilia

hair-like projections on the outer surface

microvilli

finger-like projections on the outer surface

connective tissue characteristics

fibers and ground substance

collagen fibers

thicker fibers, non-stretchy, sturdy, flexible

elastic fibers

thin fibers, very stretchy, return to shape easily

reticular fibers

serves as a framework for structure of organs

ground substance

primarily water and protein, forms extracellular matrix

loose connective (areolar) tissue

fibers are loosely arranged, vascular, with scattered fibroblasts

dense regular connective tissue

tight fibers, very organized, white fibers

dense irregular connective tissue

collagen fibers arranged in crisscrossed pattern

adipose tissue

fat tissue, empty space and squished nucleus

cartilage

contain chondrocytes found in lacunae surrounded by ground substance

bone

hard mineral matrix and contains osteocytes within lacuna

what is this

simple squamous

what is this

simple cuboidal

what is this

areolar tissue

what is this

dense regular connective tissue

what is this

simple columnar with goblet cells

what is this

pseudostratified columnar

what is this

hyaline cartilage

what is this

elastic cartilage

what is this

compact bone

what is this

adipose tissue

fibroblasts

help maintain fibers