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What are tissues?
group of closely associated, similar cells that perform related functions
What is histology?
study of tissue
What are the 4 general types of tissue?
epithelial, connective, muscle and nervous
Epithelial tissue are ________ packed cells
tightly
What function do epithelial tissue serve?
form outer covering and protective barrier
Where do we find epithelial tissue?
lining hollow organs, body cavities, and ducts
T/F epithelial tissue can form glands
true
What do epithelial cells allow for?
secretion and absorption
Are epithelial cells considered a long living cell? why or why not?
no they are not because die easily due to lack of blood vessels and because they divide easily
What is a basement membrane?
thin, non-living, protein layer that anchors epithelial to connective tissue
In terms of tissue naming, what does simple mean?
single layers of cells
In terms of tissue naming, what does stratified mean?
two or more layers of cells
In terms of tissue naming, what does squamous mean?
thin, flat cells
In terms of tissue naming, what does cuboidal mean?
cube shape
In terms of tissue naming, what does columnar mean?
elongated (rectangle) cells
Name the following tissue type.
simple squamous epithelium
Name the following tissue type.
stratified squamous epithelium
Name the following tissue type.
Simple cuboidal epithelium
Name the following tissue type.
stratified cuboidal epithelium
Name the following tissue type.
simple columnar epithelium
Name the following tissue type.
stratified columnar epithelium
Name the following tissue type.
pseudostratified columnar epithelium
What are the properties of simple squamous cells?
single layer, thin, flat cells
easily damaged
What are the function simple squamous cells?
diffusion in lungs, filtration in kidneys and formation of serous membrane
What tissue type is this?
simple squamous
Where can we find simple squamous cells?
lining inside of lungs and kidneys
What type of tissue type is in this image?
simple squamous epithelial tissue
What are the properties of simple cuboidal epithelial tissue?
single layer, cube-shape
What is the function of simple cuboidal epithelial tissue?
secretion and absorption
Where can we find simple cuboidal epithelial tissue?
covering ovaries, lining kidneys, and glands
What type of tissue is present in this image?
simple cuboidal epithelial tissue
What type of tissue is present in this image?
simple cuboidal epithelial tissue
What are the properties of simple columnar epithelial tissue?
single layer, elongated cells
can be ciliated or non-ciliated
In what type of tissue can we find goblet cells?
simple columnar epithelial tissue
pseduostratified columnar epithelial tissue
What are goblet cells?
pocket like cells that produce mucus
The arrows in the image are point at what?
goblet cells
Where can we find simple non-ciliated columnar epithelial tissue?
lining digestive tract (stomach, small and large intestine)
Where can we find simple ciliated columnar epithelial tissue?
upper respiratory tract and fallopian tubes
What type of tissue is present in this image?
simple ciliated columnar epithelial tissue
What type of tissue is present in this image?
simple ciliated columnar epithelial tissue
What is the function of simple columnar epithelial tissue?
absorption, secretion and protection
What are the properties of pseudostratified columnar epithelial tissue?
appears in layers, but is not
ciliated w/ goblet cells
or non-ciliated w/ no goblet cells
Where can we find pseudostratified ciliated columnar epithelial tissue?
lining respiratory tract
Where can we find pseudostratified non-ciliated columnar epithelial tissue?
lining large ducts and glands
What type of tissue is present in this image?
pseudostratified ciliated columnar epithelial tissue
What type of tissue is present in this image?
Pseudostratified ciliated columnar epithelial tissue
What is the function of pseudostratified columnar tissue?
absorption, secretion, and transportation of materials (hormones and enzymes)
What are the properties of stratified squamous cells?
many layers of flat cells
as new cells push old cells to the surface, old cells flatten
keratinized or non-keratinized
What is defined as tough, protein that accumulates in “old” cells that produces dry, tough covering- water proofing and protection?
keratin
What have dead layer of keratinized cells?
skin, hair, and nails
Where can we find stratified squamous keratinized epithelial tissue?
skin, hair and nails
Where can we find stratified squamous non-keratinized epithelial tissue?
mouth, esophagus, vagina
What is the function of stratified squamous epithelial tissue?
??
What type of tissue is present in this image?
stratified squamous keratinized epithelial tissue
What type of tissue is present in this image?
stratified squamous keratinized epithelial tissue
What type of tissue is present in this image?
stratified squamous non-keratinized epithelial tissue
What are the properties of stratified cuboidal epithelial tissue?
2-3 layers of cube shape cells
Where can we find stratified cuboidal epithelial tissue?
lining sweat, salivary and mammary glands
What is the function of stratified cuboidal epithelial tissue?
????
What type of tissue is present in this image?
stratified cuboidal epithelial tissue
What type of tissue is present in this image?
stratified cuboidal epithelial tissue
What are the properties of stratified columnar epithelial tissue?
several layers, elongated cells
Where can we find stratified columnar epithelial tissue?
pharynx, some glands, and part of urethra
What is the function of stratified columnar epithelial tissue?
???
What type of tissue is present in this image?
stratified columnar epithelial tissue
What are the properties of transitional epithelium tissue?
dome-shaped, change in shape in response to tension (expand)
Where can we find transitional epithelium?
lining urinary tract, bladder and uterus
Explain why transitional epithelium is perfect for the uterus.
during pregnancy tissue needs to be able to expand
What is the function of transitional epithelium?
?????
What type of tissue is present in this image?
transitional epithelium
What type of tissue is present in this image?
transitional epithelium
What is glandular epithelium?
specialized to produce and secret fluids
What are the two types of glands in the body?
endocrine glands
exocrine glands
What are endocrine glands?
ductless glands
What do endocrine glands produce?
secrete hormones into the blood or surrounding extracellular fluid
What are examples of endocrine glands?
pituitary, pancreas, renal, thyroid, and thymus glands
What are exocrine glands?
glands connected to the epithelium by ducts
What do exocrine glands produce?
secrete fluids onto body surfaces or into body cavities
What are examples of exocrine glands?
sweat, salivary, pancreas, and earwax glands
What kind of gland does this represent?
exocrine gland
What kind of gland does this represent?
endocrine gland
