Anatomy and Physiology Flashcards
What are the three main types of epithelial cells?
- Squamous
- Cuboidal
- Columnar
describe squamous epithelial tissue
Thin flattened cells
describe cuboidal epithelial tissue
cube shaped cells
describe Columnar epithelial tissue
cylindrical cells
Simple vs stratified epithelial
simple is a single cell layer, stratified is 2 or more cell layers.
Pseudo stratified
where the cell appears to be in many layers
because of the different heights of the cells but form only 1 layer E.G.
respiratory passages, ducts & glands
where is simple squamous epithelial tissue found and what is it’s function?
lining blood vessels, and in the alveoli of the lungs.
It permit’s the exchange of nutrients, waste and gasses.
Where is Simple cuboidal epithelial tissue found, and what is it’s function?
lining the kidney tubules and glands. It secretes and reabsorbs water and small molecules.
Where is Simple columnar epithelial tissue found, and what is it’s function?
Lining most digestive organs, it absorbs nutrients and produces mucus.
Where is stratified squamous epithelial tissue found and what is it’s function?
the outer layer of skin (epidermis), in the mouth and vagina. It protects against abrasion, drying out, and infection.
where is stratified cuboidal epithelial tissue found and what is it’s function?
Lining the ducts of sweat glands, it secretes water and ions.
Where is stratified columnar epithelial tissue found and what is it’s function?
lines epididymis, mammary glands and larynx, it secretes mucus.
Stroma
the supporting framework made by cells in connective tissue.
Functions of the integumentary system
Covers & protects the body, regulates temperature, facilitates synthesis of vitamin D
Components of the integumentary system?
Skin, nails, sebaceous glands, sweat glands
