Definitions Flashcards
afferent
sensory impulses from the periphery to the posterior horn of the spinal cord
Allodynia
the perception of pain from a normally non-painful stimulus
Ankylosis
pathological fusion of bones across a joint
Anterior Motion Segment
made up of any two vertebral bodies and an IVD; weight bearing
Axonotmesis
type II nerve injury disruption of not only the myelin sheath but the axon as well.
Bradykinin
released from damaged muscle tissue; inflammatory process and sensitizes nociceptors
C fibers
small slow non myelinated nerves carrying pain sensation; nociceptors
Creep
is a progressive deformation of a structure under a constant, steadily applied load. when a load is applied to a viscoelastic structure, it immediately deforms under the lead
Dorsal rami
innervate the skin and intrinsic muscles of the back
Dermatogenous pain pattern
seen inn nerve root compression; pain pattern follows course of a dermatome; sharp or burning pain; radicular pain
Efferent
motor impulses form the anterior horn of the spinal cord to the periphery
Elasticity
the tendency of tissue under load to return to its original size and shape after removal of the load. Ex. Rubber bands and ligaments
Endoneurium
CT that surrounds individual nerve fibers
Epineurium
CT that surrounds entire nerve and its major branches
Facets
responsible for directions of motion (directional guidance)
Facilitation
increase in afferent stimuli causes a decreased threshold for firing. continued stimulation result in hyperactive stimulated
Golgi tendon Organ GTO
receptors located at the end of muscle that detect muscle tension inhibits muscle contraction when stimulated
Homeopathy
treats patients with heavily diluted preparations primarily from plant and mineral sources
Hyperemia
presence of excess blood in the vessels supplying a particular region of the body hyper-active responses (hypersympathicotonia)
Hysteresis
loss of energy when the disc or other viscoelastic structures are subjected to repetitive cycles of loading and unloading. It absorbs or dissipation of energy by a distorted structure.
Meniscoid
intra-articular synovial tabs; may prevent a joint from having full mobility
Motion segment
functional unit of the spine consisting of two vertebral bodies, the disc in between those bodies, the articular facets as well as the ligaments binding the two vertebrae to one another. The vertebral bodies and the disc make up the anterior motion segment, while the posterior motion segment consists of the articular facets
Muscle Spindle
a receptor that is sensitive to the length (stretch) of intrafusal fiber
Neurapraxia
Type 1 nerve injury involves a reversible conduction block characterized by local ischemia and selective demyelination of the axon sheath