ALL TISSUES BIO 141 LAB

for bio 141 lab

simple squamous

epithelial tissue; single layer of flat cells

stratified squamous

epithelial tissue; lines the esophagus and forms the skin epidermis

basement membrane

cells at the base of an epithelial layer are attached to this

simple cuboidal

epithelial tissue; single layer of cube shaped cells

lumen

space within a tubular part or organ, such as the space within a blood vessel

simple columnar

epithelial tissue; single layer of tall cells; contain goblet cells

goblet cells

a column-shaped cell found in the respiratory and intestinal tracts, which secretes the main component of mucus.

psuedostratified columnar

epithelial tissue; contains goblet cells; cilia; tall cells

epithelial tissue

tissue that covers outside of the body and lines organs and cavities

connective tissue

provides support for your body and connects all its parts; composed of cells, fibers, and ground substance

collagen fibers

strong, non-elastic with great tensile strength and flexibility; pink on slide

elastic fibers

thinner, not as strong as collagen fibers, randomly coiled, wavy look; dark purple on slide

reticular fibers

very thin, fine fibers that branch extensively and forma network; dark purple on slide

areolar connective tissue

loosely organized matrix with all three fibers, and fibroblast cells (flat or spindle shaped) are present; beneath epithelial tissues

fibroblast cells

responsible for the formation of fibers and aid in the production of collagen and elastin

reticular connective tissue

provides supporting framework for lymph nodes; contains reticular fibers; located in the spleen and lymph nodes

adipose connective tissue

cytoplasm and nucleus compressed to edge of the cellby large lipid droplet; adipocytes filled with fat; located in the hypodermis and breasts

dense regular connective tissue

closely packed collagen fiber bundles in parallel arrangement; parallel collagen fibers; contains fibrocyte cells; located in the tendons and ligaments

hyaline cartilage

connective tissue; contains collagen fibers; chondrocyte in lacunae; located in the ends of long bones

elastic cartilage

connective tissue; more flexible and elastic than hyaline cartilage; contains elastic fibers; chondrocyte in lacunae; located in the epiglottis and pinna of the ear

fibrocartilage

connective tissue; Alternating bundles of collagen fibers; contains collagen fibers; chondrocyte in lacunae; strongest of the 3 cartilages; located in intervertebral discs

compact bone

connective tissue; matrix is hard and calcified with many collagen fibers; contains osteocytes in lacunae within matrix; located in the skeleton

blood

connective tissue; ECM is fluid plasma; contains erythrocytes, leukocytes, platelets; located within blood vessels and chambers of the heart

ECM

extracellular matrix

striated muscle cells

myofilaments arranged in alternating light and dark regions; appear striped or striated under microscope

smooth muscle cells

myofilaments arranged in irregular bundles instead of repeating light and dark regions; no stripes

skeletal muscle tissue

voluntary control; multinucleated; striated; straight, cylindrical cells; attached to bones

cardiac muscle tissue

involuntary control; mononucleated; large nucleus; contains intercalated disks; striated; short, branched cells; located in the myocardium

smooth muscle tissue

involuntary control; mononucleated; short, slender cells; no striations

smooth muscle fibers

flattened cells with one centrally located ovoid nucleus

neurons

conduct nerve impulses

neuroglia

provide support to neurons

axon

the extension of a neuron, ending in branching terminal fibers, through which messages pass to other neurons or to muscles or glands

dendrites

branchlike parts of a neuron that are specialized to receive information

perineurium

coarse connective tissue that surrounds fascicles

fascicles

a bundle of nerve fibers within a nerve