4. connective tissues Flashcards
what is thixotropy?
manipulation of tissues increase tissue fluidity and flexibility
surrounds soft organs like the spleen, support cells.
branching mesh-like fiber network like cheese cloth.
reticular fibers
found in skin and blood arteries.
fibers can both stretch and recoil like rubber bands.
found in: arteries, lungs skins
elastic substance
gel like substance surrounding cells.
allows WBC’s to spread into spaces surround cells.
provide shape to tissues (eyeballs)
secrete by fibroblasts
ground substance
found in all connective tissues , cartilage, tendons, ligaments,veins and scar tissue.
fibers are strong and flexible like rope.
(25% of total body protein)
excessive (blank) tissue may reduce range of motion.
collagen fibers
contain the most collagen fibers
dense connective tissue
adipose tissue
subcutaneous layer of skin
areolar tissue
contains all three fibers types
loose connective tissue
lymph fluid: similar to blood plasma but fewer proteins
blood: plasma
liquid connective tissue
found at ends of bones, ears, and between vertebrae.
hyaline, fibrocartilage, elastic.
cartilage
parallel bundles
tendons, ligaments
dense regular
sheets or bands of fibers
deep fascia for investing Fascia
dense irregular
ears and Eustachian tubes.
epiglottis in throat
elastic cartilage
between vertebral discs
least flexible.
made densely packed fibers arranged in bundles
fibrocartilage
end of bones and of ribs and long bones
embryo skeleton
must abundant
surface of joints
rigid and flexible
hyaline cartilage
line joint cavities
line cavities that do NOT open to the outside
secrete lubricating fluids
synovial membranes
Line cavities that do NOT open to the outside
secrete lubricating fluids
contain a visceral (inside) and parietal (outside layers) with fluid in the space between. bag around organs as heart and lungs.
serous membranes
secrete lubricating fluids
found in digestive and respiratory tract
like cavities that do open to the outside.
mucus membranes
types of tissues have continual ability for regeneration.
epithelial tissues
bone tissues
which tissues have poor ability to regenerate
muscle tissue
cartilage tissue
which types of tissues have no blood supply
cartilage tissues
epithelial tissues (diffusion- replaces itself daily
proper term for when tissue can’t repair itself and scar tissue is formed.
secrete fibers and ground substance.
fibrosis or fibroblasts
tissues bond together (rom) due to increased collagen fibers secretion caused by immobility, chronic pressure, inflammation, injury steroids (cortison)
adhesion
4 changed that occur to connective tissues that result from aging
healing ability- reduced cellular blood supply, metabolic and synthesis rate. risk for chronic illiness: heart disease hypertension, stroke, diabetes, cancer.
flexibility collagen fibers in number, thickness and calcify(maintain with stretching)
muscle tissue mass (maintained with regular exercise)
adipose tissue (reduced with regular exercise)
atherosclerosis: fatty deposits on arterial walls reducing blood supply.
between skin and muscle
subcutaneous tissue
contains adipose, lymph, nerves; bursae in joints(fluid filled cavities found in joints, Elbow, knee shoulder)
superficial fascia
covers, separate muscles groups.
separates fat from muscle
purpose:connect to periosteum, holds tendons in place; prevent blood pooling in muscles
deep fascia
sudoriferous and sebaceous glands are type of
salivary gland.
exocrine