Muscles Of Thoracic Wall Flashcards Preview

Thorax & Abdomen > Muscles Of Thoracic Wall > Flashcards

Flashcards in Muscles Of Thoracic Wall Deck (4)
Loading flashcards...
0
Q

Internal Intercostal

A
Origin: Inferior border of ribs
Ins: Superior border of ribs
Inv: Intercoastal Nerve
Action: during forced inspiration....
Interosseous part depresses ribs
Interchondral part elevates ribs
1
Q

External Intercostal

A

Origin: Inferior border of ribs
Ins: Suoerior border of ribs
Inv: Intercostal nerve
Action: elevates ribs during forced inspiration

2
Q

Innermost Intercostal

A

Origin: Inferior border of ribs
Ins: Superior border of ribs
Inv: Intercostal nerve
Action: weakly depresses ribs

3
Q

Subcostal

A

Origin: Internal surface of lower ribs near angles
Ins: Superior border of 2nd or 3rd ribs below
Inv: Intercostal Nerve
Action: during forced inspiration….
Interosseous part depresses ribs
Interchondral part elevates ribs