Unit 3: The thoracic Ventral Rami

Question 0

The grey ramus communicans joins to the ventral rami of the thoracic spinal nerve (proximal/distal) to the exit of the white ramus communicant.

Answer 0

proximal

Question 1

Each of the thoracic ventral rami connects to the adjacent sympathetic ganglion through the (grey, white, or both) rami communicans.

Answer 1

Both

Question 2

Name the thoracic ventral rami which are distributed to the thoracic wall only.

Answer 2

T3-T6

Question 3

Name the muscles, where intercostal nerves run between them.

Answer 3

Outside: Internal Intercostals Inside: Subcostalis and Innrmost Intercostals

Question 4

Name three structures, which intercostal nerves pierce to become the anterior cutaneous nerve of the thorax.

Answer 4

Internal intercostal muscle, external intercostal membrane, & pectoralis major

Question 5

Name the nerve, which supplies the abdominal skin in the upper part of the infrasternal angle.

Answer 5

Anterior Cutaneous Nerve of T6

Question 6

Name six muscles, which are innervated by first to sixth thoracic ventral rami.

Answer 6

External intercostal, internal intercostal, subcostalis, innermost intercostal, serratus posterior superior, & transversus thoracis

Question 7

Name two nerves, which might supply the upper digitations of the external oblique abdominal muscle

Answer 7

T5 and T6

Question 8

Name the nerves, which supply the skin over the scapular and latissimus dorsi.

Answer 8

Posterior branch of lateral cutaneous N

Question 9

Name the nerve which supplies the skin around the umbilicus.

Answer 9

Anterior cutaneous of T10

Question 10

Name three nerves which innervate the serratus posterior inferior.

Answer 10

T9-T11

Question 11

Name the nerve, which passes behind the lateral arcuate ligament.

Answer 11

T12 or Subcostal Nerve

Question 12

Name the nerve which supplies the pyramidalis.

Answer 12

T12 or Subcostal Nerve

Question 13

Name the nerve which supplies the anterior gluteal skin up to the greater trochanter.

Answer 13

lateral cutaneous branch of the subcostal nerve

Question 14

Name the nerves, which might cause the clicking rib syndrome by subluxation.

Answer 14

Intercostal Neves

Question 15

Name the nerves, which might cause rectus abdominis syndrome.

Answer 15

Anterior cutaneous branches of an intercostal