Shared Flashcard Set

Details

Somatosensory System
Somatosensory System
6
Other
Graduate
02/13/2012

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Cards

Term
Classes of Peripheral Axons (conduction velocities)
Definition

Aα (Group I) (70-120 m/s)

Aβ(Group II) (40-70 m/s)
Aδ(Group III) (12-36 m/s)

C (Group IV) (0.5-2 m/s) 

Term
Name Different Mechanoreceptors, Fiber Types, response type, and role in perception
Definition

Merkel's Cell (Aβ) SAI Pressure Form and Texture

Meissner Corpuscle (Aβ) RA Flutter and Motion

Ruffini Corpuscle (Aβ) SAII Skin Stretch?

Pacinian Corpuscle (Aβ) Vibration

Term
Name Thermoreceptors, Fiber Type, and role in perception
Definition

Warm (C fibers) Warmth

Cold (C fibers) Cold

Term
Name Nociceptors, fiber type, and their role in perception
Definition

Small, Myelinated (Type Aδ) Sharp Pain

Unmyelinated (Type C) Burining Pain

Term
Name Proprioceptors, Fiber Type, and their role in perception
Definition

Joint Afferents (Aα) Protect against hyperextension

Golgi tendon organs (Aα) Muscle Tension

Muscle Spindles Type I (Aα) Muscle length and velocity

Muscle Spindles Type II (Aβ) Muscle length

Ruffini Corpuscle (SAII, Aβ) Joint Angle?

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