CNS I Exam 2 I Spinal Thalamic Tracts

Question 1

Tract Gracilus: type of information & termination sites

Answer 1

Type of information: Two point touch discrimintaion
Kinestetic information
Vibratory sensation

Termination: Nucleus Gracilus (MO) -> VPL (Thalmus) -> Posterior Central Gyrus (Cerebellum)

Question 2

Ceuneatus Tract: type of information & synapse points

Answer 2

Type of information: Two point touch discrimintaion
Kinestetic information
Vibratory sensation

Termination points: Nucleus Cuneatus (MO) -> VPL (Thalmus) -> Central posterior Gyrus (Cerebrum)

Question 3

Lateral Spinal Thalamic Tract: Type of information it carries and where it terminates

Answer 3

Type of information: Pain and tempeture

Synapse point: Rexed Lamina 2-5 (Gray mater of the spinal cord) -> VPL nuclei (Thalamus) -> Posterior central Gyrus (cerebral Cortex)

Question 4

Anterior Spinothalamic tract: Information type and synapse points

Answer 4

Information Type: Light touch and pressure

Synapse point: Rexed Lamina 3 or 4 - 5 (gray matter of the spinal cord)-> VPL nuclei (Thalamus)-> posterior Central Gyrus (Cerebral Cortex)