thoracic wall

Question 1

suprasternal notch @

Answer 1

T2

Question 2

sternal angle @

Answer 2

T4-T5

Question 3

xiphosternal @

Answer 3

T9

Question 4

costal margin @

Answer 4

L3

Question 5

thoracic outlet syndrome

Answer 5

symptoms involving structures in superior thoracic aperature (trachea, esophagus, vessels, and n’s)

Question 6

upper limit of thoracic cavity

Answer 6

suprapleural membrane

Question 7

true ribs

Answer 7

upper 7, attached to sternum

Question 8

false ribs

Answer 8

8-10 indirectly attached thru cartilage

Question 9

floating ribs

Answer 9

11+12

Question 10

diaphragm innervation

Answer 10

C345

sensory:
- central: phrenic
- peripheral: innercostal
motor: phrenic

Question 11

external intercostal muscle mvmt

Answer 11

elevate ribs

Question 12

internal intercostal mucles mvmt

Answer 12

depress ribs

Question 13

ext intercostal direction

Answer 13

hands in pockets

Question 14

int intercostal direction

Answer 14

hands in neighbors pockets, at rt angles to ext IC

Question 15

innermost intercostal muscle action

Answer 15

depresses ribs

Question 16

innermost intercostal muscles

Answer 16

transversus thoarcis
innermost intercostal
subcostal

Question 17

internal thoracic A branches

Answer 17

superior epigastric

musculophrenic

Question 18

sup epigastric course

Answer 18

goes under rectus abdominis

Question 19

musculophrenic course

Answer 19

laterally and down alont the costal cartilage margin

Question 20

ant and post IC A’s do what

Answer 20

anastomose

Question 21

posterior intercostal vein

Answer 21

drains into azygous venous system

Question 22

ant intercostal veins

Answer 22

drain into internal thoracic vein

Question 23

intercostal nerves

Answer 23

innervate all IC muscles
Ventral T2-T11
somatic motor
somatic sensory
sympathetic

Question 24

subcostal nerve

Answer 24

ventral T12

travels in costal grooves

Question 25

ant/post thorax mvmt

Answer 25

pump handle mvmt of ribs 2-6 and sternum

Question 26

vertical dimension thorax mvmt

Answer 26

increased be depression and contraction of the diaphragm

Question 27

lateral dimension thorax mvmt

Answer 27

increased by bucket handle mvmt of lower ribs 7-10

Question 28

ant/post mvmt at costotransverse joint

Answer 28

pump handle, upper ribs, rotation

Question 29

lateral mvmt at costotransverse joint

Answer 29

bucket handle, lower ribs, gliding

Question 30

articulation of ribs and vertebrae

Answer 30

rib articulates with the superior facet of the same level vertebrae and the inferior facet of the vertebrae at the level above it
very little mvmt

Question 31

VAN

Answer 31

runs below costal grooves of ribs between 2nd and 3rd muscle layers