A&P - Chapter 9 (Part 1) Flashcards
What are epithelial tissue divided into? (2)
- Membranous epithelium
2. Glandular epithelium
What parts of the body does the membranous epithelium cover? (6)
- Lines serous cavities
- Blood/lymphatic vessels
- Respiratory tract
- Digestive tract
- Genitourinary tract
- Body
What part of the body does the glandular epithelium cover?
Secretory units of the endocrine and exocrine glands
Where are the glandular epithelium located?
Glands
Where are the membranous epithelium located?
Everywhere else but the glands
What are the functions of the epithelial tissue? (5)
- Protection
- Sensory function
- Secretion
- Absorption
- Excretion
What is the most important function of the epithelial tissue?
Protection
Where would you find epithelial tissue for sensory functions? (4)
Special epithelial structures in the…
- Skin
- Nose
- Eyes
- Ears
What do epithelial tissue secrete? (4)
- Hormones
- Mucous
- Digestive juice
- Sweat
Where would you find epithelial tissue for absorption? (2)
- Gut
2. Respiratory tract
Where would you find epithelial tissue for excretion?
Kidney tubules
What is there limited amount of in epithelial tissues?
Matrix material
What do epithelial tissues look like?
Tightly packed sheets of cells, with many desmosomes and tight junctions
Basement membrane
Is a platform to put everything on it
What is attached to the basement floor for epithelial tissues?
Membranous type
Is epithelial tissues vascular or avascular?
Avascular
What is epithelial tissue capable of?
Reproduction
Why do epithelial tissues reproduce so much?
Due to wear and tear
What are 3 examples of tissues that might wear and tear?
- Skin
- Gut
- Respiratory tract lining
How does epithelial tissue got its nutrients? (3)
- Diffusion
- Osmosis
- Etc…
What are the 4 classifications by shape?
- Squamous
- Cuboidal
- Columnar
- Pseudostratified columnar
What does squamous shape look like?
Flat and scale-like
What does cuboidal shape look like?
Cube shaped
What does columnar shape look like?
Taller than they are wide
- like a column
What does pseudostratified shape look like?
Fake columnar
- everything touches the basement membrane (even though it doesnt look like it
What are the 3 classification by arrangement of layers in the cell?
- Simple
- Stratified
- Transitional
How would you describe simple cells? (2)
- Single layer
2. Same shape
How would you describe stratified cells? (2)
- Multiple layers
2. Names according to the shape of the cells in the outer layer
How would you describe transitional cells?
Varying shapes that can stretch
Where would you find transitional cells?
In the bladder
