THORAX- PART 1

Question 1

anterior rami t1-11

Answer 1

intercostal nerves

Question 2

anterior rami t12

Answer 2

SUBCOSTAL Nerve

Question 3

typical intercostal nerve

Answer 3

3-6th and run along the posterior intercostal space between the parietal pleura and the internal intercostal membrane
-near the angle of the ribs the nerves are between the inner most intercostal muscle and the intercostal the continue in the costal groove

Question 4

What happens when the nerves wrap around and get to the sternum?

Answer 4

they innervate the costal cartilage and enter the subcutaneous tissue as anterior cutaneous branches

Question 5

atypical intercostal nerves

Answer 5

1st and 2nd and 7th through 11th
-the 1st and 2nd run on the internal surface of the rib instead of the costal groove

Question 6

why do we have to anesthetize two or more intercostal nerves

Answer 6

bc there is overlapping of adjacent dermatones
-make sure to get the nerves superior and inferior to the rib

Question 7

what lies most superior to the intercostal grooves

Answer 7

veins

Question 8

where to posterior intercostal veins end

Answer 8

azygos/hemizygos

Question 9

what muscles are involved when pt with dyspnea is trying to break

Answer 9

sternecleidomastoid, upper trap and scalene

Question 10

level of manubrium

Answer 10

t3 t4 and is anterior to aorta arch