Introduction to Histology Flashcards
when classifying epithelia what is the term if it is only one cell layer
simple
when classifying epithelia what is the term if it has two or more layers
stratified
what are the different shapes of epithelial cells
squamous, cuboidal and columnar
what shape is squamous
flat
what shape is cuboidal
square
what shape is columnar
rectangle
if the cell Is columnar where does the nucleus tend to sit
more on the base
What type of epithelial tend to function to exchange nutrients and gases
simple squamous
give some locations of simple squamous
blood vessel walls and alveoli
what type of cells are found in the oral cavity and on the skin
keratinised stratified squamous
there are multiple layers of square looking epithelia and it seems to have a layer of keratin. what am I
keratinised stratified squamous
this type of epithelia has flat surface cells and has many layers
non-keratinised stratified squamous
there is no diffusion in the oesophagus so what kind of epithelia are found here
non-keratinised stratified squamous
simple cuboidal epithelium are found where
secretion and absorption found in the glands and kidney tubules
where are simple columnar epithelia found
secretion and absorption found past the oesophagus in the GI tract
what are pseudo-stratified ciliated columnar epithelium with goblet cell
have basement membrane but not all nuclei are in line and not all touch the surface.
where are pseudo-stratified ciliated columnar epithelium found
oesophagus tract and and trachea and large respiratory airways
what are the 3 types of specialised connective tissue
blood, bone and cartilage
connective tissue proper surrounds the muscle and also found under skin
can be classified based on what
abundance of fibres and the way they are organised
what are the 3 major types of connective tissue proper
loose arteriolar, dense irregular and dense regular
which type of connective tissue contains:
lots of ground substance
loose arteriolar tissue (looks white)
which type of connective tissue contains:
a variety of different cells including macrophages, fibroblasts and adipocytes
loose arteriolar tissue
which type of connective tissue contains:
doesn’t have that many fibres (collagen and elastic)
loose arteriolar tissue
which type of connective tissue contains:
fibres in all different direction found under epithelium
loose arteriolar tissue
which type of connective tissue contains:
little ground substance
dense irregular and dense regular
what is the difference between dense irregular and dense regular connective tissue
dense regular has densely packed bundles of collagen fibres in parallel rows
dense irregular has it in different directions so it can resist stretching
where is dense irregular tissue found
in the dermis layer of skin
where is dense regular connective tissue found
in tendons and ligaments as stretch will always come from the same direction
what are the 3 types of muscle
skeletal, smooth and cardiac
