Quiz 2 Drawings Flashcards
What is the name of this pathway? (A)
medial lemniscus
It’s officially after 2˚ neurons decussate
What type of sensation is the medial lemniscus pathway for?
fine touch and vibration for the body
What is this path? (A)
medial lemniscus sytem
Where is the dorsal spinocerebellar tract located?
within the lateral funiculus
What is D?
Dorsal spinocerebellar tract
What kind of neurons are found in Clarke’s nucleus?
2˚ neurons for lower body
What is the level of Clarke’s nucleus?
C8-L3
What is C?
Clarke’s Nucleus (nucleus dorsalis)
What is nucleus Z neuron? (1˚ 2˚ 3˚ 4˚)
3˚ proprioceptive neuron for lower body
What is B?
nucleus Z
What is this medial lemniscus system pathway for?
proprioception for the body
What is 3?
spinal trigeminal nucleus
What is 2?
pontine trigeminal nucleus
What is 1?
mesencephalic nucleus
What is B?
Gasserian (trigeminal) ganglion
What is the trigeminal system pathway for?
proprioception, vibration, fine touch for the face
What pathway is this? (A)
trigeminal system
What is B?
spinothalamic tract
What is this tract? (A)
spinothalamic tract
Primary 1˚ neurons are always found in the DRG EXCEPT for this:
Trigeminal System
- Proprioception for the face is found in the Mesencephalic Nucleus
- Vibration and fine touch for the face is found in the Gasserian (Trigeminal) Ganglion
What somatotopic region is #1 for?
face
What somatotopic region is #2 for?
upper extremity
What somatotopic region is #3 for?
trunk
What somatotopic region is #4 (both a and b) for?
lower extremity and peritoneum and pelvis
What is the function of the green area/#5?
secondary somatosensory cortex
What is the function of the orange area/ (7+8)?
primary somatosensory cortex
What is the function of the blue area/(6+9)?
somatosensory assocation cortex
What anatomical landmark is #4?
post central gyrus
What anatomical landmark is #8?
posterior paracentral lobule
What anatomical landmark is #6?
superior parietal lobule
What anatomical landmark is #9?
precuneate gyrus of the parietal lobe
