thoracic nerve

Question 0

what will each nerve divide into?

Answer 0

posterior and anterior primary ramus

Question 1

how many pairs of thoracic nerve roots are there?

Answer 1

12

Question 2

what does the posterior primary ramus divide into?

Answer 2

medial and lateral branch

Question 3

what are the muscles supplied by the medial branch?

Answer 3

semispinalis(upper six), longissimus (lower six), multifidi

Question 4

what is the sensory area supplied by the medial branch of the posterior ramus?

Answer 4

skin paraspinally

Question 5

do the lateral branches of the thoracic spinal nerves carry motor or sensory information

Answer 5

both motor and sensory

Question 6

how to the lateral branches of the thoracic spinal nerves increase in size

Answer 6

from superior to inferior

Question 7

what muscles are supplied by the lateral branches of the thoracic spinal nerves

Answer 7

longissimus, iliocostalis, and levator costorum

Question 8

where does the lateral branches of the thoracic spinal nerves supply sensory information to?

Answer 8

skin near the costal angles

Question 9

the anterior primary rami of the thoracic spinal nerves follow what course in relation to ribs

Answer 9

they follow the course of the rib above the nerve

Question 10

aside from contributing to the brachial plexus what other branch does the T1 anterior primary ramus give off?

Answer 10

a smaller branch that forms the first intercostal nerve

Question 11

what anterior primary rami contribute to the intercostobrachial nerve

Answer 11

T2 and T1(sometimes)

Question 12

each intercostal nerves gives off which branch

Answer 12

lateral cutaneous branch

Question 13

what does the lateral cutaneous branch of the anterior primary rami divide into? and what do they supply?

Answer 13

anterior branch and posterior branch, supplying the overlying skin

Question 14

where do intercostal nerves terminate and what do they supply

Answer 14

in the anterior cutaneous branches , that supply the skin close to midline

Question 15

what muscles do the intercostal nerves give off muscular branches to supply?

Answer 15

internal intercostals, external intercostals, serratus posterior, transversus thoracis, transverse abdominal (7-11) internal abdominal oblique (7-11), external abdominal oblique(7-11), rectus abdominus(7-11)

Question 16

aside from muscles what else will the intercostal nerves supply

Answer 16

adjacent blood vessels, bones, joints, and ligaments

Question 17

what is the largest thoracic nerve

Answer 17

subcostal nerve (T12)

Question 18

what plexus does the subcostal nerve contribute to

Answer 18

lumbar plexus

Question 19

how far does the subcostal nerve supply the skin

Answer 19

as far inferior as the superior buttocks

Question 20

how does each thoracic nerve communicate with the sympathetic trunk

Answer 20

both white and gray ramus communicans

Question 21

where is the gray ramus located in relation to the white ramus

Answer 21

medial