Chapter 5: Epithelial Tissue Flashcards
How can epithelial tissue be classified?
Its shape and whether it is stacked.
What are the different shapes epithelial tissue can take?
- Squamous
- Cuboidal
- Columnar
What are the ways epithelial tissue is classified when stacked or not?
- Simple
- Stratified
What is pseudostratified?
Columnar tissue seems to be stratified but is actually in a singular line.
What is transitional epithelium?
Tissue made up of multiple layers of cells that can change shape in response to stretching.
Where is transitional epithelial tissue found?
It lines the urinary tract.
Where are simple squamous cells found?
- Blood vessels
- Lungs
- Kidneys
- Body Cavities
What are simple cuboidal cells specialized for?
Diffusion & Absorption
What are simple columnar cells specialized for?
Absorption & Secretion
Where are the simple columnar cells found?
They line many organs.
Where are the ciliated simple columnar cells found?
Digestive tract & Fallopian tube
Where are pseudostratified columnar cells found?
Epididymis, Vas Deferens, & Urethra
Where are the ciliated pseudostratified columnar cells found?
It lines most of the respiratory tract, except for the pharynx and larynx & can be found in the fallopian tubes.
What is the function of stratified squamous cells?
Protection
Where are the stratified squamous cells found?
Esophagus, mouth, & vagina
What is the main function of stratified cuboidal cells?
Protection & Structural Reinforcement
Where are stratified cuboidal cells found?
Sweat, Salivary, & Mammary Glands
Where are stratified columnar cells found?
In the lining of the conjunctiva, pharynx, parts of the male urethra, and the anus.
What is glandular epithelial tissue?
Tissue that makes up the glands.
What types of glands are there?
- Exocrine
- Endocrine
What are exocrine glands?
They release their secretions into a duct that opens into a specific part of the body.
What are endocrine glands?
They secrete substances directly into the bloodstream.
What are the types of secretion exocrine glands perform?
- Apocrine
- Holocrine
What is apocrine secretion?
Release a part of their cell membrane along with the secreted substance.
What is holocrine secretion?
Release the entire cell that ruptures to release its secretion.
What type of secretion do endocrine glands partake in?
Merocrine
What is merocrine secretion?
Release secretions directly through the cell membrane without losing any part of the cell.
