Vestibular System
Simple Invertebrate Vestibular systems:
Organs of Human Vestibular System: --works under similar principle.
Semicircular Canals:
Dizziness from alcohol :
Saccule :
Utricle:
Motion Sickness:
Cutaneous Perception
Touch:
Skin Types: 2 types
Hairy Skin:
Glabrous Skin:
Skin Layers:
Epidermis:
Dermis:
Subcutaneous tissue:
Mechanoreceptors: - respond to mechanical stimulation of skin.
Slowly Adapting (SA) fibers:
Merkel Receptor: (SA1)
Ruffini Cylinder: (SA2)
Rapidly Adapting (RA) fibers:
Meissner Corpuscle: (RA1)
Pacinian Corpuscle: (RA2)
Density of Nerve Fibers:
Two-point thresholds:
Organization of Touch in the Brain:
Brain's Receptive Fields:
Topographical Organization:
Passive vs Active Touch:
Passive:
Active:
Manner of active touch is determined by properties of the object.
Active touch linked with kinesthesis and proprioception.
Kinesthesis:
Proprioception:
Temperature:
