Epithelium and Connective Tissue Flashcards
Tissue is made of ____ and _____
cells and extracellular matrix
What is known as the suspension medium that surrounds cells?
extracellular matrix
What type of tissue is described as sheets that line and cover body surface, body cavities, and the inside and outside of hollow organs?
epithilia
The function of epithelia depends on the ___ type
cell
Where would you find epithelial tissues in the body?
skin, lining hollow organs, lining body cavities
What are the type main types of epithelia?
membranous and glandular
What type of epithelia covers the outer and inner surfaces or lines a body cavity?
membraneous
What type of epithelia secretes substances onto the surface of the epithelia?
glandular
Glandular epithelia is _____ with membranous epithelia
continuous
Secretions come out of the _____ of the gland
ducts
Epithelia having a free apical surface and an attached basal surface displays _____
polarity
What two things does the intercellular junction do?
limits transportation between cells, and creates a semi permeable membrane for letting things in and out of the cell
What does avascular mean?
no blood vessels
What must epithelia be supported by connective tissue?
to diffuse nutrients, oxygen, and to rid of waste
The ____ separates the epithelia and the connective tissue
basement membrane
Epithelia has a high rate of cell ____ and _____
cell death, regeneration
Epithelia has an abundance of _____ and limited ______
cells, extracellular matrix
What are the two parts of naming epithelia?
cell layers and cell shape
What are the two levels of epithelial cell layers?
simple and stratified (and pseudostratified)
What cell type is described as one layer of cells where they are all attached to the basement membrane?
simple
What cell type is described as more than one layer of cells where not all of the cells are attached to the basement membrane?
stratified
What type of cell appears to be more than one layer, but all cells are attached to the basal surface, though not to apical surface?
pseudostratified
What type of cell is flat, plate-line, wider than they are tall, with oval nuclei
squamous
What type of cell is as wide as they are tall with a circular nuclei?
cuboidal
What type of cell is taller than it is wide with an oval nuclei?
columnar
What type of cell produces mucus that traps foreign cells, lubricates apical surfaces, and serves as protection?
Goblet cells
What device moves mucus across apical surface and is always present with goblet cells?
cilia
cilia moves in a ______ pattern
wave-like
What type of cells is one layer with cells wider than they are tall with an oval nuclei with functions of diffusion and filtration?
simple squamous
What type of cell is one layer with cells as wide as they are tall, round nuclei, and functions for absorption and secretion?
simple cuboidal
What type of cell is one layer with cells that are taller than they are wide, oval nucleus, and functions for absorption and secretion?
simple columnar
What type of cell is multiple layers with cells wider than they are tall, oval nuclei, and function as protection?
stratified squamous
What type of cell has all cells touching the basement membrane but not the apical surface, are taller than they are wide, have cilia and goblet cells, oval nuclei, and function for protection?
pseudostratified columnar
What is another tern for respiratory epithelia?
pseudostratified columnar
What is another term for pseudostratified columnar cells?
respiratory epithelia
What type of cell has the purpose of stretching and changing shape to be cuboidal when relaxed and squamous when streched?
transitional
Where is transitional epithelia located?
urinary tract
What type of epithelia is primarily in the urinary tract?
transitional epithelia
The nuclei are always _____ in transitional epithelia
circular
Transitional relaxed cells are ____ shaped
cuboidal
Transitional distended cells are ____ shaped
apical
What is unique to transitional epithelia in the apical layer?
umbrella shape
What type of cell are all gland cells?
simple cuboital
What type of cell are all gland cells?
simple cuboidal
What type of connective tissue surrounds and protects organs, muscles, blood vessels, and nerves?
connective proper