Sensory System — Review Flashcards
6 subsets of neurological function
- Mental Status
- Cranial Nerves
- Motor Function
- Reflexes
- Sensory Status
- Coordination, Gait, and Balance (Cerebellar)
Information goes toward the CNS
Sensory/Afferent
Information going away from the CNS
Motor/Efferent
Primary somatosensory cortex
Postcentral Gyrus (Parietal Lobe)
Brodmann’s Area 312
Postcentral Gyrus (Parietal Lobe)
Allows conscious awareness of sensation and ability to localize it;
discriminatory sensation
Postcentral gyrus (Primary Somatosensory Cortex)
Understanding of what is being felt
Somatosensory Association Area
Executive functioning
Cerebral cortex
Little Man
Homonculus
Referring to Homunculus: location of the sensation for the Face
Lateral side
Referring to Homunculus: sensation for upper extremities and trunk (thorax and abdomen)
Top of the parietal cortex
Referring to Homunculus: sensation of the lower extremities and genitalia
Medial side
Sensory receptors: pain and temp
Free nerve endings
Sensory receptors: light touch
Merkel discs
Light touch and entwines with hair follicles
Root hair plexuses
Light touch in hairless skin
Encapsulated Meissner’s corpuscles
Deep pressure and stretch
Ruffini’s corpuscles
Deep pressure and vibration
Pacinian corpuscles
Visceral pain, nausea, hunger and fullness
Pacinian corpuscles
Overall body position during movement and acceleration;
Kinesthetic sense
Joint position sense/Propioception
Sensors of propioception
Muscle spindles
Golgi tendon
Joint kinesthetic receptors
