Somatotopic organization — Flashcards

Flashcard 1: The UMNs of the motor cortex that receive input from the VL nucleus (thalamus) send descending axons via the contralateral _____ tract

Answer: corticospinal

Flashcard 2: corticospinal tract (CST)

Answer: motor innervation

Extra: caudal medulla Number 5

Flashcard 3: The axons of upper motoneurons of peripheral nerves are found in the _____ tract

Answer: corticospinal

Extra:  Watch associated Bootcamp video [https://app.bootcamp.com/med-school/neuroanatomy/videos/spinal-cord-tracts?index=2] https://onlinemeded.org/spa/neuroscience/brainstem/acquire?ref=anki 

Flashcard 4: Corticobulbar fibers arise in the _____ cortex

Answer: primary motor

Extra:  Watch associated Bootcamp video [https://app.bootcamp.com/med-school/neuroanatomy/videos/spinal-cord-tracts?index=6] https://onlinemeded.org/spa/neuroscience/cranial-nerves/acquire?ref=anki 

Flashcard 5: ID Tracts: _____

Answer: Corticospinal and Corticobulbar tracts

Extra:  https://onlinemeded.org/spa/neuroscience/brainstem/acquire?ref=anki Netters: Other: 

Flashcard 6: Corticobulbar fibers arise in the _____ cortex

Answer: primary motor

Flashcard 7: The corticospinal tract is located _____ (medially or laterally) throughout the brainstem

Answer: medially

Flashcard 8: Neurons of the red nucleus (midbrain) that receive input from the emboliform and globose nuclei send descending axons via the contralateral _____ tract

Answer: rubrospinal