Spinal cord injury levels and their effects — Flashcards

Flashcard 1: Neurons of the red nucleus (midbrain) that receive input from the emboliform and globose nuclei send descending axons via the contralateral _____ tract

Answer: rubrospinal

Flashcard 2: Corticobulbar fibers arise in the _____ cortex

Answer: primary motor

Flashcard 3: corticospinal tract (CST)

Answer: motor innervation

Extra: caudal medulla Number 5

Flashcard 4: The axons of upper motor neurons (UMNs) that synapse with lower motor neurons in the **spinal cord** 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

Flashcard 5: 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 6: In the midbrain, the _____ tracts are located in the middle 3/5 of the crus cerebri (basis pedunculi).

Answer: corticospinal and corticobulbar

Extra: The crus cerebri is the anterior portion of the cerebral peduncle. It contains the following descending tracts: - Medial 1/5: Frontopontine fibers - Middle 3/5: Corticospinal and corticobulbar fibers - Lateral 1/5: Temporopontine, parietopontine, and occipitopontine fibers

Flashcard 7: The UMNs of the motor cortex that receive input from the VL nucleus (thalamus) send descending axons via the contralateral _____ tract

Answer: corticospinal

Flashcard 8: The corticospinal tract is located _____ (medially or laterally) throughout the brainstem

Answer: medially