NA1 Site map:

NA1: Major ascending and descending pathways

1.1: Ascending somato-sensory pathways

1.1.1: Spino-thalamic pathway > Projected onto sagittally sectioned brain
1.1.1: Spino-thalamic pathway > In plan view from behind
1.1.1: Spino-thalamic pathway > Quiz

: Tabs: Key concepts; Further info; Animation; Labelling exercise

: Tabs: Pathway & Further info; Animation; Labelling exercise.
: Pathway & Further info links to: Somatosensory cortex; Thalamus; Internal capsule; Spino-thalamic tract

1.1.2: Dorsal column-medial lemniscus pathway > Projected onto sagittally sectioned brain
1.1.2: Dorsal column-medial lemniscus pathway > In plan view from behind
1.1.2: Dorsal column-medial lemniscus pathway > Quiz

: Tabs: Key concepts; Further info; Animation; Labelling exercise

: Tabs: Pathway & Further info; Animation; Labelling exercise.
: Pathway & Further info links to: Cuneate tract; Gracile tract; Thalamus; Medial lemniscus; Cuneate nucleus; Gracile nucleus

1.1.3: Spino-reticular pathway > In plan view from behind

: Tabs: Pathway & key concepts; Animation; Labelling exercise

1.1.4: Trigeminal sensory pathway > Route to the cortex

1.1.4: Trigeminal sensory pathway > Trigeminal sensory nucleus & sensory inputs (Advanced)

: Tabs: Pathway & key concepts; Animation; Labelling exercise.
: Pathway & further info links to: Trigeminal nerve
: Tabs: Advanced concepts; Further info.
: Further info links to: Trigeminal nerve; Trigeminal Spinal Tract; Spinal sensory nucleus of V

1.1.5: Spino-cerebellar pathway > In plan view from behind


1.1.5: Spino-cerebellar pathway > including spino-olivary tract (Advanced)
1.1.5: Spino-cerebellar pathway > Quiz

: Tabs: Pathway & further info; Animation; Labelling exercise.
: Pathway & further info links to: Thoracic cord somato-sensory tracts; Cerebellum
: Advanced Pathway links to: Inferior olive; Spino-olivary tract

1.2: Descending cortical (pyramidal) motor pathways

1.2.1: Corticospinal pathway > Projected onto brain
1.2.1: Corticospinal pathways > In plan view from behind



1.2.1: Corticospinal pathways > Termination of lateral corticospinal tract
1.2.1: Corticospinal pathways > Quizzes

: Tabs: Key concepts; Animation
: Tabs: Pathway & further info; Animation.
: Pathway & further info links to: Motor cortex; Internal capsule; Lateral corticospinal tract; Ventral/anterior corticospinal tract; Pyramidal decussation in medulla
: Tabs: Key concepts; Further Information

: Tabs: Quiz; Labelling exercise

1.2.2: Corticobulbar pathway > Projected onto brain & coronal section
1.2.2: Corticobulbar pathway > In plan view from behind

1.2.2: Corticobulbar pathway > Bundles to cranial nerver motor nuclei
1.2.2: Corticobulbar pathway > Quizzes

: Tabs: Key concepts; Animation

: Tabs: Pathway & further info; Animation
: Pathway & further info links to: Motor cortex; Corticobulbar tract
: Tabs: Key concepts; Animation

: Tabs: Quiz; Labelling exercise

1.2.3: Corticospinal & corticobulbar pathways > Somatotopic localization in the motor cortex
1.2.3: Corticospinal & corticobulbar pathways > Summary
1.2.3: Corticospinal & corticobulbar pathways > Quiz

1.3: Descending motor (extrapyramidal) pathways from brainstem

1.3.1: Descending motor (extrapyramidal) pathways > In plan view from behind
1.3.1: Descending motor (extrapyramidal) pathways > Brainstem motor pathways in detail
1.3.1: Descending motor (extrapyramidal) pathways > The MLF
1.3.1: Descending motor (extrapyramidal) pathways > Reticulospinal pathway of descending pain control
1.3.1: Descending motor (extrapyramidal) pathways > Quiz

: The MLF links to: Open medulla > MLF

1.4: Effects of lesions to somatosensory and motor pathways

1.4.1: Effects of lesions on ascending somatosensory pathways > Spinothalamic tract lesions
1.4.1: Effects of lesions on ascending somatosensory pathways > Dorsal column tract lesions

: Tabs: Key concepts; Animation

: Tabs: Key concepts; Animation

1.4.2: Effects of lesions on pyramidal motor pathways > Lesions to lateral corticospinal tract > above pyramidal decussation
1.4.2: Effects of lesions on pyramidal motor pathways > Lesions to lateral corticospinal tract > below pyramidal decussation
1.4.2: Effects of lesions on pyramidal motor pathways > Lesion to a spinal motor neuron

: Tabs: Key concepts; Animation
: Key concepts links to: Axonal degeneration in CNS
: Tabs: Key concepts; Animation

: Tabs: Key concepts; Animation
: Key concepts links to: Axonal degeneration > lesion of a peripheral nerve

1.4.3: Effects of spinal hemisection > Brown-Séquard syndrome
1.4.3: Effects of spinal hemisection > Quiz

: Tabs: Key concepts; Animation