4. epithelial tissues Flashcards Preview

massage > 4. epithelial tissues > Flashcards

Flashcards in 4. epithelial tissues Deck (12)
Loading flashcards...
1

attach to goblet cells for lubrication

attach to cilia in airways and reproductive tract

absorption of nutrients in intestine

columnar epithelial cells

2

allows for stretching and recoilability

bladder lining

transitional epithelial cells

3

protection from head/cold/microbes/chemicals

water proofing

lining of heart, lungs, mucus membrane

flat sheets of very flat cells

squamous epithelial cells

4

lining ducts of sweat and oil glands of the skin

secrete mucus to protect exocrine gland ducts

cuboidal epithelial cells

5

6 characteristics of epithelial cells

continuous sheet-tightly packed cells prevent moment, gap junction allow passage.
exposed surface-open on one side, attached to "basement membrane"
avascular- have no blood vessels, nutrient obtained thru diffusion.
nerves- have many nerves to detect sensations and send information to brain.
regeneration-high capacity for renewal due to constant wear and tear.
secrete,absorb-mucus, nutrients, wastes

6

histology

study of tissues

7

physiology

function

8

pathology

disease

9

what are some protection functions of epithelial lining cells.

prevent: dehydration (waterproof)
:invasion of microbes
:damage "wear and tear" injury, chemicals

detection: sensory receptors for pain, chemicals (taste buds)

10

secrete directly into blood.
ex: hormones (insulin, throid gland, pituitary gland)

endocrine glands

11

secrete into ducts that lead out of the body

ex:mucus membranes, sweat glands, salvia glands.

exocrine glands

12

secrete into blood and ducts

ex: pancreas insulin into blood and enzymes (duct) to intestines

mixed glands