Neuroanatomy : Spinal

Question 1

What are the main vertebrae regions of the spine?

Answer 1

Cervical (C1-C7)
Thoracic (T1-T12)
Lumbar (L1-L5)
Sacral (S1-S5)

Question 2

What is the dorsal root of the spinal cord?

Its role

Answer 2

Dorsal nerve roots carry sensory neural signals to the central nervous system (CNS) from the peripheral nervous system (PNS).

Question 3

What is the ventral root of the spinal cord?

Its role

Answer 3

ventral root carrys motor information from the spinal cord to the rest of the body

Question 4

State the main function(s) of the spinal cord.

Answer 4

SC contains motor neurons that innervate skeletal muscle

Receives sensory info from periphery and transmits this to the brain

Question 5

Tetraplegia definition

Paraplegia definition

Answer 5

Full or partial loss of sensation and movement in all 4 limbs
Full or partial loss of sensation and movement in both legs

Question 6

Which part of the cell is grey matter in the spinal cord?

Answer 6

Neuronal cell bodies

Question 7

Which part of the cell is white matter in the spinal cord?

Answer 7

Axon bundles

Question 8

Tetraplegia info.

Answer 8

Full or partial loss of sensation and movement in all four limbs & torso
Caused by damage to the cervical region (C1-C7)

Question 9

Paraplegia info.

Answer 9

Full or partial loss of sensation and movement in both legs

Caused by damage in the thoracic (T1 - T12), Sacral (S1-S5) or lumbar region (L1-L5)