tissues Flashcards
what is epithelial tissue
3 things
covers surfaces, forms glands, separates compartments
what is connective tissue
anything that isn’t muscle, nerve or epithelial tissue
what dose connective tissue do
connects
extracellular matrix
examples - bone, blood, adipose
what is the basement membrane
what is it made up of
top to bottom
a thin layer of tissue that separates the epithelium from the underlying connective tissue
Basal lamina
reticular lamina
what are the classes of simple Epithelial tissue that are secretory and found in the gut/ovary
squamous, cuboidal, columnar
what type of stratified epithelium are used in the urinary balder- what do they do
transitional
Protective & impermeant
what epithelium are found in the trachea
Pseudostratified columnar epithelium
what are the type of stratified epithelium found in he gut
secretory
squamous
cuboidal
columnar
what do glands consist of
mostly secretory epithelial cells
where do Exocrine glands secrete
into tubes
where do endocrine secrete
into the blood
how do glands develop
from columnar epithelium with stem cells
what are the 2 types of simple exocrine gland
tubular - long Colum
ACINAR - light bulb shape
what is the compound exocrine gland
tubuloacinar
what are the two types of exocrine glands
what do they secrete
mucous galnds
secretion + water = mucus
proteoglycans (heavily glycosylated proteins)
serous glands - protein rich secretions - PANCREAS
Myoepithelial cells
found in glandular epithelium as a thin layer above the basement membrane
sweat glands, mammary glands
why are steroids only made on demand
as they leak out of cell
what are the two types of endocrine glands
proteinaceous secretion
steroid gland - adrenal cortex
what is the main epithelial cell in liver
what dose it do
Hepatocytes arranged in rows between blood vessels
secretion
what is the parenchyma
the main bulk of an organ comprising of the functional parts of an organ
what is the parenchyma of the kidney
what is its function
Epithelial cells organised into nephrons
filtration of blood, partial absorption of filtrate,
how is collagen formed
fibroblasts
triple stranded
what are the 5 problems that can occur from abnormal function of epithelial cells
over-proliferation under-proliferation over-secretion under-secretion loss of cilia / ciliary beat
what are the 3 components that make up the extracellular matrix
fibres - rope like
ground substances - jelly like substance
tissue fluid - liquid
