Attachment of the first rib is all except
The first rib has several attachments which are listed below; Anterior scalene muscle: scalene tubercle Middle scalene muscle: between groove for the subclan aery and transverse tubercle Intercostal muscles: from the outer border Subclavius muscle: arises from the distal shaft and first costal cailage First digitation of the serratus anterior muscle Parietal pleura: from the inner border Costoclavicular ligament: anterior to the groove for the subclan vein Ref -<a href="
Scalenus posterior
Scalenus anterior
Scalenus medius
Parietal pleura
Thorax