Q&A Spinal Nerves

Question 1

What nervous structures pass from the spinal cord to the periphery

Answer 1

Spinal Nerves (LMN, lower motor neurons)

Question 2

Where do the spinal nerves leave the vertebral column?

Answer 2

Intervetrebral formamen

Question 3

What arises from the spinal cord to form a spinal nerve

Answer 3

Dorsal (sensory) and ventral (motor) roots

Question 4

What are the two main branch sod spinal nerves?

what do they carry

Answer 4

Dorsal and ventral branches (mixed motor and sensory fibers)

Question 5

What areas do the ventral and dorsal motor branches of the spinal nerves supply motor innervation?

Answer 5

Ventral: muscles ventral to the transverse process of the vertebrae process of the vertebrae ;
Dorsal: muscles dorsal to the transverse processes, sensory innervation not exactly the same

Question 6

What spinal nerve branches supply sensation from the skin of the abdominal wall and back

Answer 6

Dorsal: back (above the transverse process) and upper flank (area just below the transverse process), ventral:rest