1. LEFT RIGHT What is the result of this Lesion? Answer:
What Pathway is this? (sensory modality and region)
Answer: Pain and Temperature from the Body
What is the major Tract in this Pathway?
Answer: Lateral Spinothalamic Tract
LEFT
RIGHT
What is the result of this Lesion?
Answer:
Ipsilateral (Left) loss of Temperature focally at the lesion (sacral dermatome)

2. LEFT RIGHT What is the result of this Lesion? Answer:
Ipsilateral (Left) loss of Pain and Temperature for ~2 dermatomes below the level of the lesion. Note Lower segments (thoracic, lumbar, sacral) would not be affected if the lesion is focal.

3. LEFT RIGHT What is the result of this Lesion? Answer:
Bilateral (Left and Right) loss of Pain and Temperature at ~2 dermatomes below the level of the lesion.

4. LEFT RIGHT What is the result of this Lesion? Answer:
Contralateral (Left) loss of Pain and Temperature for thoracic dermatomes and below.

5. LEFT RIGHT What is the result of this Lesion? Answer:
Contralateral (Left) loss of Pain and Temperature in the Body.

6. LEFT RIGHT What is the result of this Lesion? Answer:
Contralateral (Left) loss of Pain and Temperature in the Body.

7. LEFT RIGHT What is the result of this Lesion? Answer:
Contralateral (Left) loss of all Somatosensation in the Body (Pain, Temperature, Touch, Pressure, Vibration, etc).

8. LEFT RIGHT What is the result of this Lesion? Answer:
Contralateral (Left) loss of all Somatosensation in the Foot/Leg (Pain, Temperature, Touch, Pressure, Vibration, etc).

9. What is the name of this Structure?
What Pathway is this? (sensory modality and region)
Answer: Pain and Temperature from the Head and Face
What is the Tract name for the second order axons after they have crossed the midline?
Answer: Ventral Trigeminothalamic Tract
Left
Right
Midbrain
Pons
What is the name of this Structure?
Spinotrigeminal tract
Medulla
What is the name of this Structure?
Ventral
Trigemino-
thalamic tract
Left
Right

10. What is the result of this Lesion?
Left
Right
Answer:
Ipsilateral (Left) loss of all Somatosensation in the Face and Head (Pain, Temperature, Touch, Pressure, Vibration, etc).
Spinotrigeminal tract
Ventral
Trigemino-
thalamic tract
Left
Right

11. What is the result of this Lesion?
Left
Right
Answer:
Ipsilateral (Left) loss of Pain and Temperature from the Head and Face.
Spinotrigeminal tract
Ventral
Trigemino-
thalamic tract
Left
Right

12. What is the result of this Lesion?
Left
Right
Answer:
Contralateral (Left) loss of Pain and Temperature from the Head and Face.
Spinotrigeminal tract
Ventral
Trigemino-
thalamic tract

13. What is the result of this Lesion?
What Pathway is shown in orange? (sensory modality and region)
Answer: Fine Discrimination Touch from the Head and Face
Left
Right
What is the result of this Lesion?
Answer:
Contralateral (Left) loss of Pain and Temperature, AND Fine Discrimination Touch from the Head and Face.
Spinotrigeminal tract
Ventral
Trigemino-
thalamic tract

14. What Pathway is this? (sensory modality and region)
Answer: Fine Discrimination Touch from the Body
What is the name of the Tract consisting of the 2nd order axons?
Answer: Medial Lemniscus

15. What is the result of this Lesion?
Answer:
Ipsilateral loss of all Sensory Modalities (Pain, Temp, Fine Discrim Touch, Proprioception) at the level of the lesion.

16. What is the result of this Lesion?
Answer:
Ipsilateral loss of Fine Discrimination Touch on the legs.

17. What is the result of this Lesion?
Answer:
Ipsilateral loss of Fine Discrimination Touch in the upper Body.

18. What is the result of this Lesion?
Answer:
Contralateral loss of Fine Discrimination Touch on the Lower Body.

19. What is the result of this Lesion?
Answer:
Contralateral loss of Fine Discrimination Touch on Upper and Lower Body.

20. What is the result of this Lesion?
Answer:
Contralateral loss of Fine Discrimination Touch on Upper and Lower Body.

21. What is the result of this Lesion?
Answer:
Contralateral (Left) loss of all Somatosensation in the Leg (Pain, Temperature, Touch, Pressure, Vibration, etc).

22. What is the result of this Lesion?
Answer:
Contralateral loss of of all Somatosensation on Upper and Lower Body. (Pain, Temperature, Touch, Pressure, Vibration, etc).