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Axillaryarteyppt by dr.meher
1. Subclavian artery
Scalenus Anterior muscles divides the artery into 3 parts :
Right subclavian artery Left subclavian artery
Origin : brachiocephalic artery
Course : arches upward and laterally over the pleura
and btw the sclaneus ant and med muscles
At the upper border of the 1st rib it becomes axillary
artery
Origin : arch of aorta in the thorax
Course : ascends to the root of the neck and arches
laterally similar to the right subclavian artery
2. 1st part
Extends fro the origin of the subclavian artery to MEDIAL
border of scal. Anterior muscle
Giving 3 branches
Vertebral artery
Thyrocervical trunk
internal thoracic artery
2nd part
Lies behind the scal. Anterior muscle
Gives following branches
Cost cervical trunk (backward over the dome of the plura
dividing into
Superior intercostal artery
Deep cervical artery
3rd part
Extends from the Lateral Border of Scal. Anterior Muscle
Cross the post triangle of the neck to the lateral border of the
1st rib becoming Axillary artery , closely related to the nerves
of brachial plexus
Occasionally giving branches
• Superficial cervical arteries
• Suprascapular arteries
3.
4. Continuation of subclavian
artery
Exteds from outer border of
1st rib upto lower border of
Teres major muscle
Continues as brachial artery
Closely related to brachial
plexus cords
Pectoralis minor muscle
divides the artery into 3 parts.
5. Axial artery pulsastion can be felt against
the lower part of the lateral wall of axilla
In order to check bleeding from the distal part of limb
- The artery can be compressed against the humerus in the
lower part of the lateral wall of axilla