Tissues Flashcards
Hierarchy of structure
-Tissues are made of collections of similar cells.
-Organs are made up of multiple tissues
-Organs and tissues work together to form organ systems
-multiple systems comprise an entire organism.
cells>tissues>organ>organ system>organism
4 primary tissue types
epithelial
-simple, stratified and secretory
connective
-blood, bone, cartilage, adipose, loose and dense
nervous
-motor, relay and sensory neuron
muscle
-skeletal, cardiac and smooth
Where do you find epithelial tissues?
cover surfaces of the body.
e.g. skin, lining of the lungs, digestive tracts
What is the function of epithelial tissues?
boundary layers, also aid absorption and secretion
3 main epithelial cell shapes
squamous, cuboidal, columnar
where are simple squamous cells shapes found
blood vessels, capillary walls, lungs
where are stratified squamous cell shape found
skin lining
where are transitional cell shapes found
bladder, urethra, prostate,
epithelial surfaces, apical surface
side of the tissue exposed to the eternal environment
epithelial surfaces, basal surface
the other side, that is attached to a connective tissue normally, called the basement membrane
functions of loose connective tissues
provide padding and insulation
functions of dense connective tissues
holds and binds body parts and other tissues together
functions of specialised connective tissues
gives strength and protection
loose connective tissues-adipose
fat under skin and around organs mainly heart, kidneys and mammery glands
function of adipose
stores fat and provides insulation