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chapter 8 embryo
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Epithelium
lines the _________ and _________ body surfaces.
internal
external
TAPSS
is the function of the epithelium. What does it mean?
Tissue Absorption
Protection
Secretion
Sensory
Epithelium
is ________ grouped cells with little or no __________ substance or _______ fluid.
closely
intercellular
tissue
Are there blood vessels in epithelium?
no
Oxygen and nutrition come from the __________ tissue through __________.
connective
diffusion
What is the
Rapid Turnover Time
? What does it have everything to do with?
How quickly the cells can replace themselves.
Periodontal disease
Epithelial cells
reproduce by _______ so they can grow back quickly.
mitosis
What are the three classifications of layers?
simple epithelium
stratified epithelium
pseudostratified epithelium
What is
simple epithelium
?
Only ONE layer of cells above the basement membrane
What is
stratified epithelium
?
MULTIPLE layers above the basement membrane
What is
pseudostratified epithelium
?
Cells look like multiple layers because they are different heights, but
each one contacts
the basement membrane.
What are the three shapes of cells?
Squamous
Cuboidal
Columnar
Squamous cells
are __________ _____-like cells called "________". Cell height is ____ than cell width.
flattened
plate
squames
less than
Cuboidal cells
are ____-shaped with a cell height _____ to cell width.
cube
equal
Columnar cells
are _________ or tall. The cell height is ____ cell width
rectangular
greater than
Keratin
is a tough, ______, waterproof ______ that blocks bacteria and is resistant to _______.
fibrous
protein
friction
What does it mean when a tissue is
keratinized
?
The tissue
always
produces keratin because it is in place of heavy use.
What is
non-keratinized
?
The tissue usually doesn't produce keratin unless it is put under extra stress and needs the protection. It then becomes
hyperkeritinized.
Location of
simple squamous epithelium
:
Lines BV's, lymph vessels, and heart.
Location of
simple cuboidal epithelium
:
Lines salivary glands ducts
Location of
Simple Columnar epithelium
(ameloblasts)
Lines salivary glands ducts
Inner enamel epithelium
Location of
Pseudostratified epithelium
:
Lines the upper respiratory tract
Location of
stratified squamous epithelium
*
Superficial oral mucosa
Location of
keratinized stratified squamous epithelium
*
Superficial skin - epidermis
*stratified epithelium is classified by the outermost layer which is almost always _________.
squamous
Author
jackiedh
ID
42544
Card Set
chapter 8 embryo
Description
ch 8 embryo basic tissues
Updated
2010-10-16T21:04:50Z
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