Sensory Pathways - Ascending Flashcards
Types of Receptors
Encapsulated and unencapsulated
Encapsulated receptors
Pacinian corpuscles
Unencapsulated
Pain or temperature
Dendritic Zone
Receptors on or near the surface of the body
Modality
Each type of sensation
GSS
General Somatic Sensation
GSA
General Somatic Afferent
Cruciate Sulcus
Landmark denoting the separation between the frontal cortex and the parietal cortex.
Location of the Somatosensory Cortex
Caudal to the motor cortex (motor cortex is in the frontal lobe). The cranial aspect of the parietal cortex.
Sensory Acuity
How close together you can sense two points of stimuli as being separate
Decussation
Crossing midline
Dorsal Columns/funiculus
Where the white matter runs through
Ataxia
Cerebellar disturbance, afferent kinaesthetic deficit
Hyperalgesia
Tissue damage releases chemicals which increase sensitivity to nociceptors. Heightened response to touch