Medulla Oblongata Transverse Sections

Level - Decussation of pyramids

Cavity - Central canal

What is the Nuclei?

Nuclei - Nucleus gracilis, nucleus cuneatus, spinal nucleus of cranial nerve V, accessory nucleus

Level - Decussation of pyramids

Cavity - Central canal

What are the Motor Tracts?

Motor Tracts - Decussation of corticospinal tracts, pyramids

Level - Decussation of pyramids

Cavity - Central canal

What are the Sensory Tracts?

Sensory Tracts - Spinal tract of cranial nerve V, posterior spinocerebellar tract, lateral spinothalamic tract, anterior spinocerebellar tract

Level - Decussation of medial lemnisci

Cavity - Central canal

What is the Nuclei?

Nuclei - Nucleus gracilis, nucleus cuneatus, spinal nucleus of cranial nerve V, accessory nucleus, hypoglossal nucleus

Level - Decussation of medial lemnisci

Cavity - Central canal

What are the Motor Tracts? (1)

Motor Tracts (1) - Pyramids

Level - Decussation of medial lemnisci

Cavity - Central canal

What are the Sensory Tracts?

Sensory Tracts - Decussation of medial lemnisci, fasciculus gracilis, fasciculus cuneatus, spinal tract of cranial nerve V, posterior spinocerebellar tract, lateral spinothalamic tract, anterior spinocerebellar tract

Level - Olives, inferior cerebellar peduncle

Cavity - Fourth ventricle

What is the Nuclei?

Nuclei - Inferior olivary nucleus, spinal nucleus of cranial nerve V, vestibular nucleus, glossopharyngeal nucleus, vagal nucleus, hypoglossal nucleus, nucleus ambiguus, nucleus of tractus solitarius

Level - Olives, inferior cerebellar peduncle

Cavity - Fourth ventricle

What are the Motor Tracts? (2)

Motor Tracts (2) - Pyramids

Level - Olives, inferior cerebellar peduncle

Cavity - Fourth ventricle

What are the Sensory Tracts?

Sensory Tracts - Medial longitudinal fasciculus, tectospinal tract, medial lemniscus, spinal tract of cranial nerve V, lateral spinothalamic tract, anterior spinocerebellar tract

Level - Just inferior to pons

Cavity - Fourth ventricle

What is the Nuclei?

Nuclei - Lateral vestibular nucleus, cochlear nuclei

Level - Just inferior to pons

Cavity - Fourth ventricle

What are the Motor Tracts?

Motor Tracts - None?

Level - Just inferior to pons

Cavity - Fourth ventricle

What are the Sensory Tracts?

Sensory Tracts - No major changes in distribution of gray and white matter