Fascia Flashcards
What is fascia? What is its primary role?
Band or sheet of connective tissue (mostly collagen) beneath the skin.
Attaches, stabilizes, encloses and separates muscles and internal organs.
By what processes does fascia communicate (i guess to itself and other tissues/organs)? Define these processes
Proprioception: knowing where you are in space
Nociception: pain sensors
piezoelectric forces (idk what this is but ill look it up)
Define tensegrity and how it functions in our body
Tension and Integrity
Structure of the body redistributes forces by distortion and deformation
What are some important function of Tensegrity
enhanced by expansion and will transfer expansion to other planes.
Think of the movement of the body and how things tense and relax in a consorted motion
How should we think of Fascia as it connects to our body?
It is one single biomechanical regulatory system
What is the most important molecule when it comes to the tensile strength of Fascia?
Collagen type 1
What is the Superficial Fascia and what is its function/important properties?
Where is it commonly found?
low layer of the skin in the reticular layer of the dermis
Determine shape of body, surrounds organs, glands, etc
Storage of adipose tissue
Viscoelastic: can shrink and expand (pregnancy/weightloss)
Most prominent in lower part of abdominal wall, perineum, limbs
Thin on dorsal side of hands and feet, sides of neck and the face
Very DENSE on scalp, palms and soles of feel
What allows fascia to be remodeled?
Myofibroblasts in response to receptor stimuli
How does deep fascia transmit forces
Elastic Fibers
Bone: periosteum, endosteum
Cartilage: perichondrium
Blood Vessels: tunica externa
Nerves: epineureum, perineurium, endoneurium
Muscles: epimysium, perimysium, endomysium
Name the deep fascia associated with Bone and describe th characteristics.
Periosteum: Dense layer of vascular connective tissue enveloping the bones except at the surfaces of the joints
endosteum: a thin vascular membrane of connective tissue. Lines the inner surface of the bone tissue. Forms medullary cavity of the long bones. Surface reabsored during long periods of malnutrition
Name the deep fascia associated with Cartilage and describe th characteristics.
Perichondrium: connective tissue that envelops cartilage where it is not at a joint
Name the deep fascia associated with Blood Vessels and describe th characteristics.
Tunica externa: adventicia, outermost layer of a blood vessel surrounding the tunica media. Mainly composed of collagen. In arteries: supported by elastic lamina
Name the deep fascia associated with Nerves and describe the characteristics.
Epineureum: outermost layer of dense irregular connective tissue surrounding a peripheral nerve. Usually surrounds multiple nerve fascicles and blood vessels that supply the nerve. Smaller branches penetrate into the perineurium
perineurium: sheath of CT surrounding a bundle of nerve fibers within a nerve
endoneurium: delicate CT around the myelin sheath of each myelinated nerve fiber in the peripheral nervous system. Made of endoneurial cells.
Name the deep fascia associated with Muscles and describe the characteristics.
epimysium: Sheath of fibrous elastic tissue surrounding a muscle
perimysium: sheath of CT surrounding a bundle of muscles
endomysium: a wispy layer of loose areolar CT that unsheathes each individual myocyte (individual muscle cells) Contains capillaries and nerves. Overlies the muscle fiber’s cell membrane.
Define Visceral Fascia and the different layers
Double Layer covering of Organs separated by a serous fluid membrane.
Parietal Layer: pain, temperature, and pressure sensitive
Serous Membrane: allows for functional organ movement. May be impeded by scar tissue after surgeries
Visceral layer
