Epithelial Tissue Flashcards
The four primary type of tissues
Epithelial, tissue, connective, tissue, muscle tissue, and nervous tissue
What does avascular mean?
It means no direct blood supply
What does innervated mean?
It has nerves.
What is regeneration?
It means always growing and replacing old cells.
What is a squamous cell?
Single layer of flat cells that are located in blood vessels. Their main function’s include diffusion and filtration.
What is a cuboidal cell?
Single layer of cube like cells that are located in kidney tubules. Their main function is secretion and absorption.
What is a columnar cell?
Single layer of column like cells and their main functions is secretion and absorption. They may contain micro-villa or cilia. Micro-villa lines the digestive tract and cilia lines the trachea.
What is pseudo-stratified columnar?
Tissue that may or may not contain cilia. Its functions are secretion and propulsion. They are located in the trachea.
What is stratified squamous?
Tissue that protect the underlying tissue from abrasion. It is located on outside of the skin.
What does cilia do?
It helps move substances through internal passageways.
What does transitional epithelia do?
It always stretching. It is located in the urine bladder.
What does glandular epithelia do?
It’s a gland that secrets a fluid classified by endocrine or exocrine.
Function of exocrine glands:
Secrets into the ducts that then release onto the body’s surface thus causing: sweating, oil , mucous, and saliva.
Function of endocrine glands:
It does not have ducts. It secrets by exocytosis and then it goes into extra cellular space.
What do goblet cells produce?
Mucous !
What is merocrine?
When the product is released by exocytosis.
What is Holocrine?
When products are released from rupture of cell glands.
