Types of tissues Flashcards
What are the defining characteristics of the epithelial tissue class?
It always has a free surface and is anchored by a basement membrane
What are epithelial tissues categorized by?
The shape and number of layers of cells
Where can simple squamous cells be found?
The walls of the cappilaries
Where can simple cuboidal cells be found?
It lines the ducts of the pancreas and liver
Where can simple columnar cells be found?
It lines the stomach and kidneys
Where can stratified squamous cells be found?
The epidermis
Where can pseudostratified ciliated columnar cells be found?
It lines the passages of the respiratory system
Where can transitional cells be found?
It lines the the bladder
What are some characteristics of simple squamous cells?
- Circles
- One layer
- Plain looking
- Tightly fit together
- Flattened
What are some characteristics of simple cuboidal cells?
- Central, spherical nuclei
- Single layer
- Circles and tubules
- Cube shaped
- Good at absorbing and moving things across the membrane
What are some characteristics of simple columnar cells?
- A single layer of elongated cells
- Nuclei are near the basement membrane
- Column
What are some characteristics of stratified squamous cells?
- Vertical lines (stratified)
- Can see nuclei dots on the outside
- Many layers
What are some characteristics of transitional cells?
- Changes in response
- Several layers of cuboidal cells
- Varies in shape and number of layers
What are some characteristics of pseudostratified ciliated cells?
- Nuclei are at 2 or more levels
- Cells vary in shape
- Cilia with mucus
- 1 layer
- Column
What are the defining characteristics of the connective tissue class?
- Bind structures, provide support and protection, frameworks, fill spaces, repair damage, store fat.
- Abundance of extracellular matrix between them
- Can usually divide
