Spinal Cord

Question 1

Spinal Cord

Answer 1

transmits nerve impulses and controls spinal reflexes

Question 2

How many spinal nerves are there?

Answer 2

31 pairs

Question 3

Ventral root (motor root)

Answer 3

sends nerve impulses from the spinal cord to the skeletal muscles of somatic nervous system
-enters anterior or ventral side of spinal cord

Question 4

Dorsal Root (sensory root)

Answer 4

sends impulses from sensory organs and receptors to the PNS to the spinal cord
-enters posterior or dorsal side of spinal cord

Question 5

Spinal Reflex

Answer 5

-works for our protections
-instead of sending to the brain, the spinal cord evaluates and makes decision to give immediate response (involuntary)
-work with gray matter in spinal cord
-ex. touching something hot and jerking away