clinical importance of fascia Flashcards
fascial colloids ; what are the two states
sol (liquid)
gel (solid)
what is fascia?
a colloidal matrix with embedded collagen fibers
contractile elements
colloids respond to heat and cold/movement/tissue pH
sol state (liquid) colloid is produced by..(3)
heat
less acidic pH
mobilization - active (exercise)/passive(manipulation, massage)
gel (solid) state produced by.. (3)
cold
more acidic pH (inflammation/infection)
immobilization
what is contractile elements
several different sites of fascia have been demonstrated to contain myofibroblasts( fibroblasts with s.muscle-like feature)
contractile element in vitro evidence
human lumbar fascia
stretched isometrically for 15 min
then rested for 30-60 min/then stretched again
resistance to stretch was greater each successive stretch
contractile elements - evidence
fresh fascial samples induced to contact reversibly and repeatedly by superperfusion with…?
mepyramine
calcium chloride
adonosine
fascial innervation- what innervate all form of connective tissue?(sensory)
small caliber, neuropeptide containing, primary afferent (sensory) fibers
what motor innervate all fascia?
peripheral sympathetic efferent fibers (visceromotor)
importance of peripheral sympathetic efferent fibers
visceromotor
play a role in modulating the cellular components (mast cell) of the connective tissue and contribute to the maintenance of tissue integrity
what is myofascial continuity
muscle cells live embedded in a fascial matrix
it is the fascia that makes a muscle functional
they allow the muscles and bones to glide against one another
the fascias coalesce into tendons and entheses (attachment)
other fascias coalesce to form the ligament g
myofascial continuity - what attach to bone via sharpey’s fibers which penetrate into the dense cortical bone?
ligaments and tendons
what is sharpey’s fiber?
ligament and tendons attach to bone vis this fiber, which penetrate into the dense cortical bone
myofascial continuity - what about superficial fibers?
they are continuous with the periosteum
investing fascia carries what to muscles?
carries motor and sensory nerves to muscles
investing fascia carries nutrient arteries to what ?
fascia carries the nutrients arteries to muscle and bone
investing fascia carries what drainage and vessels?
venous drainage and lymphatic vessels
why fascia is critical to the surgeon?
is what you put your needle and thread through to sew things back together again
what is tensegrity?
a combination of tension and compression elements
examples of tensegrity?
geodesic domes
bicycle wheels
fascia and bones
examples of compression element?
geodesic strut structure
hub and rim in bicycle
lumbar spine
example of tension
spokes in bicycle