Muscles Flashcards
1
Q
From outwards to inwards what is the order of the muscles of the thoracic wall?
A
external intercostal, internal intercostal, innermost intercostal
2
Q
What is the innervation of the intercostal muscles?
A
intercostal nerve
3
Q
What is the superior attachment of the intercostal muscles?
A
inferior border of ribs
4
Q
What is the inferior attachment of the intercostal muscles?
A
superior border of ribs below
5
Q
What is the main action of the external intercostal muscles?
A
during forced inspiration, elevate ribs
6
Q
In what direction are the fibres orientated in the external intercostal muscles?
A
inferoanteriorly
