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Identify these structures using transvers spinal cord model. Refer to pg 316/318

Central Canal

Tiny fluid-filled channel in the center of the spinal cord

Dorsal median sulcus

shallow longitudinal groove on the dorsal surface of the spinal cord

Ventral gray horn

Greater horns towards the anterior of the spinal cord. pg 318.

Dorsal root

the sensory branch of each spinal nerve

Ventral root

made of motor neurons that carry impulses from the spinal cord to muscles or glands

Posterior Funiculus

Dorsal white column beteween the dorsal horns.

Lateral Funiculus

Lateral white column located on the sides of the horns.

Anterior Funiculus

Ventral white column located in the front between the great horns.

Anterior Median Fissure

a longitudinal groove running vertically along the anterior midlline of the spinal cord

Lateral Gray Horn

small horns sticking out to each side of the gray matter in the spine. The horns point laterally.

Dorsal Root Ganglion

a nodule on a dorsal root that contains sensory cell bodies.

Spinal Nerves

31 pairs. Arise from the fusion of ventral and dorsal roots of the spinal cord. These are mixed nerves containing both motor and sensory.

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