Functional Neuroanatomy Spinal Cord Practicum 2

Anterior Spinal Artery

Denticulate Ligament

Anterior Spinal Artery

Anterior Spinal Artery

Ventral Root

Dorsal Root

Denticulate Ligament

Posterior Column Fasciculus Gracilis

Large Fiber Entry Zone

Central Canal

Anterior Spinal Artery

Dorsal Rootlet

Lissaeur’s Tract & Small Fiber Entry Zone

Substantia Gelatinosa

Lateral Corticospinal Tract

Anterior Horn Motor Neuron

Spinothalmic Tract

Anterior Horn Motor Neurons

Posterior Column

Large Fiber Entry Zone

Posterior Spinocerebellar Tract

Clarke’s Nucleus

Anterior Spinocerebellar Tract

Ventral Root Fibers

Central Canal

Lissauer’s Tract & Small Fiber Entry Zone

Substantia Gelatinosa

Lateral Corticospinal Tract

Spinothalamic Tract

Anterior Horn Motor Neurons (Distal Muscles)

Anterior Horn Motor Neurons (Proximal Muscles)

Dorsal Rootlet

Posterior Spinocerebellar Tract

Lateral Horn

Anterior Spinocerebellar Tract

Spinothalmic Tract

Central Canal

Posterior Column (Fasciculus Gracilis)

Large Fiber Entry Zone

Lissaeur’s Tract & Small Fiber Entry Zone

Substantia Gelatinosa

Lateral Corticospinal Tract

Ventral Root Fibers

Anterior Horn Motor Neurons

Anterior Medial Fissure

Dorsal Rootlet

Posterior Spinocerebellar Tract

Lateral Corticospinal Tract

Large Fiber Entry Zone

Anterior Spinocerebellar Tract

Posterior Column (Fasciculus Gracilis)

Spinothalmic Tract

Posterior Column (Fasciculus Cuneatus)

Substantia Gelatinosa

Anterior Horn Motor Neurons (Distal Muscles)

Anterior Horn Motor Neurons (Proximal Muscles)

Ventral Root Fibers

Central Canal

Anterior Corticospinal Tract

Large Fiber Entry Zone

Dorsal Rootlet

Posterior Spinocerebellar Tract

Lateral Corticospinal Tract

Anterior Spinocerebellar Tract

Spinothalmic Tract

Central Canal

Anterior Corticospinal Tract

Posterior Column (Fasciculus Gracilis)

Posterior Column (Fasciculus Cuneatus)

Substantia Gelatinosa

Accessory Nerve Fibers

Anterior Horn Motor Fibers (Accessory Muscles)

Anterior Horn Motor Fibers (Proximal Muscles)

Ventral Root Fibers

Anterior Horn Motors Neurons (Proximal Muscles)

Posterior Columns (Joint Position, Vibration, Pressure)

Fasciculus Cuneatus

Fasciculus Gracilis

Dorsal Root

Dorsal Spinocerebellar Tract

Ventral Spinocerebellar Tract

Lateral Spinocerebellar Tract (Pain & Temperature)

Ventral Root

Anterior Horn (Motor Neurons)

Distal Limb Movements

Lateral Corticospinal (Pyramidal Tract)

Rubrospinal Tract

Axial & Proximal Limb Movements

Lateral Reticulospinal Tract

Vestibulospinal Tract

Ventral Reticulospinal Tract

Tectospinal Tract

Ventral Spinthalamic Tract (Pressure Touch - Minor Role)

Ventral (Uncrossed) Corticospinal Tract (Distal Limb Movements - Minor Role)