Intro To Connective Tissue Flashcards
Mesenchyme
Common tissue of origin
most —1— type of tissues
abundant
good —1— & —2—
1-blood
2-nerve
does it have contact with the environment ?
no
what are the functions of the connective tissue?
1- Connect the epithelium to the rest of the body (basal membrane/ membrane reticularis)
2- provide structure (bone)
3- store energy (fat)
4- transports material (blood )
unstructured material that fills the space between the cells
ground substance
collagen, elastic,reticular
fibers
fibroblasts
chondroblasts
osteoblasts
hematopoietic stem cells
cells in connective tissues
most abundant cell-type in all connective tissue proper & secrete protein & Hyaluronan (cellular sement)
Fibroblast
large amoeba-like cells of the immune system
- they it pathogens and damaged cells
- when they r fixed the stay in the tissue but when free they migrate
macrophages
fat cells each stores a single, large droplet of fat
adipocytes
stem cells that respond to injury or infection
- it differentiate to fibroblasts and macrophages …etc..
mesenchymal cell
synthesize and store the brown pigment melanin
melanocytes
stimulate inflammation after injury or infection
- eg: basophils which is carried by blood
- release histamine and heparin
Mast cells
specialized immune cells in the lymphatic system
- eg: plasma cells which secrete antibodies
lymphocytes
phagocytic blood cells the respond to signals from the macrophages
- eg: neutrophils & eosinophils
microhages
elastic fibers
vocal cords & air passages
collagenous fibers
tendons & ligaments
reticular
liver
bone marrow
organ of the lymphatic system
MUCOUS CONNECTIVE TISSUE ONLY
found in the umbilical cord
mucous tissue also known as
wharton’ jelly
fibroblasts shapes
elongated or discoid
fibroblasts are proximately residents to
to collagen fibers
adipose unilocular
white fat
adipose multilocular
brown adipose tissue
white adipose
- under the skin (hypodermis)
- buttocks, abdomen, thighs (external)
- omentum, mesentery
multilocular is
2%-5% of newborn weight
loose CT
more ground substance & cells and less fibers
eg: fat
- areolar, reticula adipose
Dense CT
more fibers and less ground substance and cells
regular & irregular
the packing materials of the body
loose CT
least specialized
elastic fibers
hold blood vessels and capillary bed
- eg: under the skin (subcataneous layers)
areolar
most common adipose tissue
- stores fat & slows heat loss
white fat
most vascularized breakdown fat produces heat (for newborn)
brown fat
supportive fibers (stroma) that supports the functional cells reticular organs: - spleen -liver -lymph nodes -bone marrow
reticular tissue
gelatinous ground substance
areolar tissue
collagen fibers in parallel bundles with fibroblasts between bundles of collagen fibers
dense regular CT
irregular dense CT
fibers are arranged haphazardly
irregular dense CT resist tension
white of the eyeball
dermis of the skin
dense elastic fibers type
elastin & collagen
good
work
