cell function
lipocytes are cells that
and how do they do that
store nutrients
they have a huge fat pocket
epithelial cells are cells that
and how do they do that
cover and line organs
they have the hexagonal structure of a beehive
what do gap junctions in epithelial tissue allow for?
what can pass through?
they allow for communication between cells
molecules, nutrients, and ions can pass through
avascular, they gotta rely on others for their oxygen + nutrients
stratified cuboidal location
large glands
nucleus is smack dab in the middle
macrophages are cells that
and how do they do that
fight disease
have legs to crawl through various tissues
and are packed with lysosomes to destroy the pathogen
what are the four major functions of epithelial tissue (in general)? (PAFS)
protection, absorption, filtration, and secretion
what are neighboring cells bound by in epithelial tissue
they are bound by specific junctions.
simple vs stratified epithelium
simple) only one layer of cell
stratified) two or more layers of cell
stratified columnar/stratified cuboidal location
+
stratified columnar/stratified cuboidal function
in large glands
+
secretion + absorbtion
nerve cells are cells that
and how do they do that
the functional type of epithelial tissue is dependent on the......
membrane attachment always follows the pattern of ____ + ____ surfaces
free + fixed surfaces
simple squamous location
+
simple squamous function
lines organs
lines blood vessels
lines lung tissue
+
allows for rapid diffusion and filtration
transitional location
+
transitional function
only in the urinary system
+
bladder fills + empties with ease, streeeetches
fibroblast and erythrocytes (red blood cells) are cells that
and how do they do that
connect body parts
they do that with their cable like fibers and great oxygen transport
what is the role of tight (impermeable junctions) in epithelial tissue?
what is the structure of impermeable junctions?
where are impermeable junctions located?
creates a leak proof surface
prevents substances from passing through extracellular spaces
like a zipper
in the GI tract
another name for the free surface
and
what the free surface is exposed to the
and
what is located here
the apical surface
body's exterior or to the cavity of the internal organ
microvilli and/or cilia
simple cuboidal location
+
simple cuboidal function
kidney tissue
ovarian tissue
glandular tissue
intestinal lining
+
protection + the secretion of mucus or digestive enzymes
skeletal muscle and smooth muscle cells
and how does it do that
because they are specifically designed to shorten forcefully
what is a desmosome and what does it allow for
(skin, muscle, and intestinal tract)
the fixed surface is called the
and is always attached to the
basal surface
basement membrane
stratified squamous location
+
stratified squamous function
oral cavity
esophagus
female reproductive organs
keratinized skin/integument
+
protection from high friction areas, or for the keratinized areas, peel away