Biol 231 Unit 1 Chap 5: Tissue Level Of Organization

extracellular matrix

fluid compartment outside cells and around tissues composed of water, proteins, and proteoglycans

body membranes

extensive tissue layers covering organs and lining body cavities

epithelial membranes

skin, serous membranes (cover + line closed body cavities) and mucous membranes (line organ systems open to the environment)

connective tissue membranes

line + cover synovial joint surfaces

epithelial tissue

classified as to shape and number of layers

squamous

flat

cuboidal

cube shaped

columnar

rectangular

simple

one-layer

stratified

multi layer

simple squamous

one layer of flat cells, alveoli, blood vessels, and movement of substances via diffusion

simple cuboidal

one layer of cube shaped cells, glands, ducts, + secretion

simple columnar

one layer of rectangular shaped cells, secretion, absorption, protection. mucosal lining of respiratory + digestive systems

pseudostratified columnar

columnar cells of differing heights, protection, mucosal lining of the responsiratory tract

stratified squamous

multiple layers of flat epithelial cells used for protection

stratified cuboidal

multiple layers of cube shaped cells. protection, sweat glands + pharynx.

stratified columnar

multiple layers of rectangular shaped cells. protection, in anus + male urethra

transitional epithelium

multiple layers of round → flat cells. stretching + protection, in the mucosal lining of the bladder + urethers

glandular epithelium

specialized secretion tissues

exocrine

secretion into ducts

endocrine

secretion into blood stream or interstitial fluid

areolar

loosely arranged collagen + elastic fibers. supports tissues + organs throughout body

adipose

fat cells. energy storage , support, protection. subcutaneous throughout the body.

reticular

made of reticular fibers. biological filtration, framework. spleen, lymph nodes, bone marrow.

dense connective

densely arranged collagen, elastic fibers that make strong flexible connections. tendons, ligaments, dermis, organ capsules.

cartilage

avascular chondrocytes

hyaline

articulating bone surfaces

fibrocartilage

intervertebral discs, pubis symphysis

blood

transport, immunity, regulation. plasma. formed elements - RBCs, WBCs, and Platelets

bone

compact + cancellous bone. serves as protection, support, movement, calcium homeostasis

muscle tissues

movement

skeletal tissue

straited, voluntary

smooth tissue

nonstraited, involuntary

cardiac tissue

striated, involuntary

nervous tissues

regulation, integration

neurons

conducting cells

glial cells

supporting

keratinized stratified squamous epithelium

skin

nonkeratinized stratified squamous epithelium

mucosal lining of esophagus, mouth, and vagina

elastic

external ear, larynx

serous membranes

cover + line closed body cavities

mucous membranes

line organ systems open to the environment