How do you spell epi-the-lium?
lining: closely apposed cells, acts as a cover
glandular: invagination or aggregation of cells that forms a solid tissue structure
types of epithelium and their function
surface attached to basement membrane
basilar
bones can can only grow in layers and not from within which is known as
appositionally
osteocytes are connected by
canaliculi
surface farthest from basement membrane
apical
the function of simple cuboidal
secretory and absorption
chondrocytes, extracellular matrix (collagen (type 2), ground substance, elastic fibers) all compose...
cartilage
contraction of a muscle depends on
myofilaments
squamous, cuboidal, columnar and urothelium
the type of epithelium that lines the bladder
urothelium
osteoblasts come from
mesenchymal stem cells in periosteum
the layer on the inside surface of trabecular bone
endosteum
The words tight, gap, desmosomes and hemidesmosomes are used to describe
the 4 types of cellular connections epithelium make.
cells that line apocrine glands
simple cuboidal
Three types of cartilage and their location
1. hyaline = joint surfaces
2. fibro = intervertebral disks, symphysis of bones to tendons
3. elastic = ear and nose
There are two myofilaments (one thick and one thin). They are _____ and they are responsible for ____.
actin (thin) & myosin (thick) and responsible for contraction.
the type of glands release chemical substances directly into the bloodstream or tissues of the body
endocrine glands
These glands release chemical substances through ducts to outside the body or onto another surface within the body
exocrine
the histological appearance of this bone is dense regular/parallel collagen arrangement; few osteocytes; osteoblasts lining surface
lamellar bone
these two components make up all connective tissue
cells and extracellular matrix
reticulin fibers
act as a "net" to hold cells of an organ together
The 3 types of fibrous connective tissue
loose, dense and reticular
group of myofibers that is surrounded by perimysium
fasciculi
simple squamous epithelium known as serosa or mesothelium cover
internal organs
this simple squamous epithelium lines blood vessels
endothelium
this determines the permeability of collagen
amount of ground substance
type of connective tissue that would be found in a structure that needs to be tough, yet pliable like a tendon or ligament
dense regular connective tissue
The 4 types of cells in connective tissues are
fibroblasts, macrophages, leukocytes and adipose.
cells in the uppermost layer of stratified squamous epithelium lose their nuclei and organelles and leave behind the keratin; forms a waterproof barrier
the process of cornification