Spinal Cord

Question 1

Dorsal horn

Answer 1

Sensory relay

Question 2

Ventral horn

Answer 2

Origin of GSEs

Question 3

Lateral horn

Answer 3

Site of IML (Origin of preganglionic sympathetics)

Question 4

Sympathetic chain ganglia

Answer 4

Chain of ganglia, roughly associated with vertebral levels, 3 in cervical, variable in lumbar

Question 5

Dorsal primary ramus

Answer 5

One of the two spinal nerves, comes from and goes to the skin of the back (posterior body wall) and the intrinsic muscles of the back

(Transversospinalis muscle) erractor spinus, multifudus, etc)

Question 6

Ventral primary ramus

Answer 6

Larger than dorsal primary ramus, innervates the skin and the body wall of the anterolateral surfaces of the body as well as the limbs