Cell Columns In Gray Matter

Question 1

Pericornual Cells

Answer 1

I. Relay centers for pain and temperature (basic spinal reflex)

Question 2

Substantial gelatinosa

Answer 2

2. Involved in “editing” pain (input of pressure, touch, and stretch), diminish pain, by moving, rubbing, shaking injured body part

Question 3

Nucleus Proprius

Answer 3

3. contains cell bodies of neurons in several tracts, e.g., lateral spinothalamic tract (pain and temperature)->sends full pain/ sensory information

Question 4

Nucleus Dorsalis

Answer 4

4. (Clarke’s column) C8-L2,3 only, involved in proprioception (lower limbs specifically) of the lower body

Question 5

Intermediolateral cell column

Answer 5

5. (Ventral horn cells)- contain cell bodies of lower motor neurons, both alpha

Question 6

Motor nuclei (ventral horn cells)

Answer 6

6. Contain cell bodies of lower motor neurons, both alpha and gamma which innervates skeletal muscle

Question 7

Rexed Laminae in grey matter I

Answer 7

Pericornual cells

Question 8

Rexed lamina of grey matter II

Answer 8

Substantial gelatinosa

Question 9

Rexed Laminae III-V part of VI

Answer 9

Nucleus proprius

Question 10

Rexed Laminae VII

Answer 10

Intermediate zone includes nucleus dorsal is and intermedia lateral column

Question 11

Rexed Laminae VIII

Answer 11

Part of ventral horn, projection to lamina IX

Question 12

Rexed laminae IX

Answer 12

Motor nuclei (ventral horn)

Question 13

Rexed laminae X

Answer 13

Ventral and dorsal gray commissures