Classification of Peripheral Nerves Flashcards
A Fiber Characteristics
Large Fibers
Myelinated
Fast Conduction Rate
A Alpha Fibers
Alpha motor neurons
Muscle Spindle Primary Endings
GTO: Golgi Tendon Organs
Touch
A Beta Fibers
Touch
Kinesthesia
Muscle Spindle Secondary Endings
A Gamma Fibers
Touch
Pressure
Gamma Motor Neurons
A Delta
Pain
Touch
Pressure
Temperature
Sensory Component: Muscle Spindle (Primary Afferent Endings)
Primary Afferent Endings:
- Low Threshold stretch
Sensory Component: Muscle Spindle (Secondary Afferent Endings)
Secondary Afferent Endings:
Receptors that respond to changes in length
Golgi Tendon Organ (GTO)
Responds to tension or stretch of a tendon
Characteristics of B fibers
Medium Fibers
Myelinated
“Reasonably” fast conduction rate
Pre - ganglionic fibers of the ANS
Characteristics of C Fibers
Small Fibers
Poorly or unmyelinated fibers
Slowed Conduction rate
Postganglionic fibers of the sympathetic nervous system
Exteroceptors for (pain, temperature, touch)
