Axilla
,Synonym: Arm pit
• Pyramidal shaped space b/n the
upper part of arm & lateral
thoracic wall
• gives passage to important
vascular structures passing
between the neck and the upper
limb
Boundaries:
Apex, base & 4 walls (anterior,
posterior, medial & lateral)
, Apex : truncated, directed upward and medially to
the root of the neck
Cervico - axillary canal
Front- clavicle
Behind- scapula
Medially- 1st rib
Structures passing -
Axillary vessels, cords of
brachial plexus, long
thoracic nerve & lymph
trunk
, Base:
Directed below , concave
Boundaries –
Front - anterior axillary fold
Behind - posterior axillary fold
Medially - thoracic wall
• Anterior axillary fold - lower
border pectoralis major
• Posterior axillary fold - lower
border of latissimus dorsi and
teres major
,Synonym: Arm pit
• Pyramidal shaped space b/n the
upper part of arm & lateral
thoracic wall
• gives passage to important
vascular structures passing
between the neck and the upper
limb
Boundaries:
Apex, base & 4 walls (anterior,
posterior, medial & lateral)
, Apex : truncated, directed upward and medially to
the root of the neck
Cervico - axillary canal
Front- clavicle
Behind- scapula
Medially- 1st rib
Structures passing -
Axillary vessels, cords of
brachial plexus, long
thoracic nerve & lymph
trunk
, Base:
Directed below , concave
Boundaries –
Front - anterior axillary fold
Behind - posterior axillary fold
Medially - thoracic wall
• Anterior axillary fold - lower
border pectoralis major
• Posterior axillary fold - lower
border of latissimus dorsi and
teres major
