Epithelial Tissue Flashcards
a group of cells that all perform the same specific function.
tissue
example of tissue
cardiac, muscle, or nerves
covers body surfaces and organs, lines body cavities.
epithelial tissue
binds and support body parts
connective tissue
contracts producing movement
muscular tissue
responds to stimuli and transmits nerve impulses
nervous tissue
externally function of epithelial tissue
protects body from drying out, injury, and bacterial invasion
internally function of epithelial tissue
protects, sweeps up impurities, secret mucus, absorbs
composed of a single layer of cells
simple epithelial tissue
composed of two or more layers of cell
stratified epithelial tissue
types of epithelial tissues
- squamous epithelium
- cuboidal epithelium
- columnar epithelium
- pseudostratified epithelium
- transitional epithelium
which have cells with relatively large cytoplasmic volumes, are often located where secretion or active absorption of substances is an important function
columnar epithelia
two types of squamous epithelium
- simple squamous epithelium
- stratified squamous epithelium
single layer of flattened cells
simple squamous epithelium
function of simple squamous epithelium
secretion, absorption, and filtration
location of simple squamous epithelium
lines the lungs, blood vessels, and heart
many layers of flattened cells
stratified squamous epithelium
function of stratified squamous epithelium
protection
location of stratified squamous epithelium
outer layer of skin, lining the various orifices of the body.
single layer of cube-shaped cells attached to a basement membrane.
simple cuboidal epithelium
two or more layers of cube-shaped cells
stratified cuboidal epithelium
function of cuboidal epithelium
glands- secretion
kidney tubules- secretion and absoption
composed of cells that are longer than wider. nucleus found in the lower half of the cell
simple columnar epithelium
location and function of simple columnar epithelium
digestive organ- absorption
uterine tubes- propel egg to uterus
cells appear to be layered due to irregularly placed nuclei but each cell touches the basement membrane. may contains cilia- aids in movement particles.
pseudostratified epithelium
function of pseudostratified epithelium
protection, secretion, movement of mucus and sex cells
location of pseudostratified epithelium
respiratory tract, reproductive tract
tissue that changes in response to tension. found in organs that need to stretch.
transitional epithelium
location of transitional epithelium
urinary bladder, ureters, urethra