tissue types

three tungs before the sahur

epithelial tissue description

lines surfaces, may be simple or stratified, functions are secretion, absorption, and protection(SAP)

connective tissue function

structural support

simple

one layer

stratified

many layers

tissue definition

made of multiple kinds of living cells, with a nonliving extracellular matrix

muscle tissue function

contraction

nervous tissue function

neurons send signals, neuroglial cells act as support(like glue), function is to send communication signals

simple squamous shape

thin, flat, irregular from top view

simple squamous location

inner layer of blood cells and lung aveoli(has to be thin for stuff to pass through)

stratified squamous location

lines oral cavity, espohagus, anal canal, vagina, skin

simple squamous function

diffusion

stratified squamous function

protection

simple cuboidal shape

sqaureish

simple cuboidal location

kidney tubulues, reporductive organs, sweat and salivary glands

simple cuboidal function

secretion

simple columnar shape

contains cilia

simple columnar location and function

uterus to move egg, stomach to secrete protection for small intestine, microvilli increase surface area for absorption

simple columnar function

move things, protect, asborption

psuedostratified columnar description

looks layered, but isnt

psuedostratified columnar location and function

lines respiratory passageways, with cilia to sweep foreign particles out

stratified columnar description

superficial cells are columnar, deep cells are cuboidal

stratified columnar location and function

pharynx, male reproductive organs, for protection and secretion

areolar description

very random

areolar location and function

widely distributed, supports and binds organs and other tissues

adipose definition

very crowded

adipose location and function

widely distributed, used for padding and insulation

dense tissue description

closely packed together, looks loosened under microscope

dense tissue location and function

ligaments: connect bone to bone tendons: connect bone to skeletal muscle function: provide strength with little flexibility

cartilage

abundant matrix of collagenous fibers in a gel-like substance. groups of 2-4 chondrocytes surrounded by lacunae.

hyaline cartialge

protects ends of bones and supports respiratory passageways. need lungs to say ¨hi¨

elastic cartilage

forms framework of ear and larynx

fibrocartilage function

shock absorption

fibrocartilage location

knees, pelvis

compact bone definition

matrix of collagenous fibers and minerals, osteocytes in layers around a blood vessel.

compact bone location and function

bone, support, protection, attachment for muscles, forms red blood cells.

blood description

iquid, matrix called ¨plasma¨ with formed elements

blood location and functions

in blood vessels and heart chambers, transports substances, mantaining homeostasis.