Connective tissue Flashcards
connective tissue makes up every organ of the body —true or false
true
functions of connective tissue
- enclose organs
- connect tissues to one another
3.suport and movement - storage
- cushion/ insulate
- transport
- protect
three major components of extracellular matrix
- ground substance
- proteins fibers
- fluid
protein fibers of extracellular matrix
- collagen
- Reticular
- Elastic
collagen
most common protein in body
strong and flexible and inelastic
rope like
reticular
fill spaces between tissues and organs
form a network
fine collageneous
elastic
returns to original shape after distention or compression
contains molecules of protien elastin that resemble coiled spring and are cross linked
molecules of ground substance of matrix
- hylaranoic acid
- proteoglycans
- adhesive molecules
hylaranoic acid (of ground substances)
pollysaccharide
good lubrication
virtous of eye
proteoglycans (of ground substances)
protien and polysachharide
protein part attaches to hylaranic acid
traps water
adhesive molecules of ground substance
hold proteoglycan aggregates together
suffex is nectin (ie chondronectin in chartalige)
Classifications of connective tissue:
connective tissue proper
loose
dense
Clasification of CT:
Supportive
cartilage and bone
Classification of CT:
fluid
blood and hemoptyic fluid
loose connective tissue properties
fewer fibers, more ground substance
types of loose connective tissue
areolar, adipose, reticular
dense connective tissue properties
more fibers, less ground substance
areolar connective tissue properties
loose packing or “stroma”
lies underneath skin and other tissues
contains all three proteins of extracellular matrix
contains lymphocytes, macrophages, adiposyte, fibroblasts, mast cells
areolar connective tissue structure
cells within fine network of mainly collagen fibers
often merges with dense connective tissue
adipose tissue
mainly adipocytes
yellow adipose tissue
most abundant kind
scant ring of cytoplasm with large lipid droplet
nuclei flattened
white at birth than become yelloe
brown adipose tissue
found in neck, axila and kidneys
nuclei around, multiple adipose polygonal in shape and lots of cytoplasm
adipose function
insulator, protector, and site of energy storage
reticular tissue
forms supersturcutre of lymph and hemopoietic tissue
network of fine reticular fibers and cells
spaces between cells contain white cells and dendrite cells
dense regular collagenous tisssue
abundant COLLAGEN fibers that resist stretching
tendons and ligaments
tendons
connect muscle to bone
fibers not necessarily parallel
ligaments
connect bone to bone
fibers less compact and usually form flattened sheets or bands
dense regular elastic tissue
composed of collagen and elastic fibers
ABLE to stretch and recoil
found in vocal cords and NUCHAL ligament
dense IRREGULAR COLLAGENOUS tissue
collagen fibers randomly arranged network
forms innermost layer of dermis of skin, scars, capsule of kidneys and spleen
dense irregular ELASTIC tissue
bundles and sheaths of collagenous and elastic fibers in multiple directions
capable of stretch in many different directions
elastic arteries
lacunae
matrix surrounded space that house chondrocytes
perichondrium
dense irregular connective tissue that surround all cartilage and secrete cartilage cells
hyaline cartilage
large amounts of collagen fiber distributed in proteglayn matrix
matrix appears transparent
forms most of skeleton
involved in bone growth–long bones
found in areas for strong support and some flexibility
fibrocartiliage
thick collagen fibers in proteclayn matrix
slightly compressible and tough
found in areas under great pressure like joints
–knee, jaw, in bewtween vertebrae
elastic cartilage
collagen AND ELASTIC fibers embeded in proeclayn matrix
rigid but elastic properties
external ears and epilgotis
Bone
spongy and compact
osteoycetes in luncae
organic and inorganic
compact bone
arranged in concentric circles like tree ring around a central canal that contains a blood vessel
found on periphery of bones
fluid connnective tissue properites
matrix is liquid and lacks fibers
matrix is formed by other tissues
moves through vessels but both fluid and cells caxn move in and out of vessels
fluid connnective tissue properites
matrix is liquid and lacks fibers
matrix is formed by other tissues
moves through vessels but both fluid and cells caxn move in and out of vessels