The Spine

Question 1

Cervical Enlargement

Answer 1

Serve the head and neck.

Question 2

Lumbar Enlargement

Answer 2

Serve the lower limbs.

Question 3

Conus Medullaris

Answer 3

The spinal cord ends in a cone-shaped structure.

Question 4

Cauda Equine

Answer 4

Collection of nerve roots; Extends from the Conus Medullaris. Think of a horse tail!

Question 5

Filium Terminale

Answer 5

Fibrous extension of the Conus Medullaris. Extends to the coccyx.

Question 6

Gray Matter: What portion of the axon do you find here?

Answer 6

Neuronal bodies.

Question 7

White Matter: What portion of the axon do you find here?

Answer 7

Axons.

Question 8

Central Canal: What is the fluid that circulates through this canal?

Answer 8

CSF

Question 9

Dorsal Root: What portion of the neuron do you find here?

Answer 9

1. You find SENSORY neurons in this area.
2. Neuronal bodies.

Question 10

Dorsal Root Ganglion: What portion of the neuron do you find here?

Answer 10

Neuronal cell bodies.

Question 11

Ventral Root: What portion of the neuron do you find here?

Answer 11

1. You find MOTOR neurons in this area.

Question 12

How many spinal nerves do we have?

Answer 12

31 spinal nerves.

Question 13

Do spinal nerves carry sensory or motor information or both?

Answer 13

Both.