Post on 26-Dec-2015
AXILLA
• A pyramid-shaped.• it is a space
between the upper part of the arm and the side of the chest
• Transmit major neurovascular structures between neck & thorax and upper limbs.
• Axilla has an apex, a base and four walls.
Axilla is a space4 Sided pyramidApex connected to the neck=InletBase Arm pit= OutletAnterior wallPosterior wallMedial wallLateral wall
Apex
directed upward. called Cervicoaxillary
canal. Boundaries:• Clavicle anteriorly.• Upper border of the
scapula posteriorly.• Outer border of the
first rib medially.
CL
A
V
IC
L E
1
R
IB
1. Cords and branches of the brachial plexus
2. Axillary artery and its branches.
3. Axillary vein and its tributaries.
4. Axillary lymph nodes.
5. Axillary lymphatic vessels
6. Axillary fat.7. Loose connective
tissue.8. Axillary sheath
Axillary a. & v.
Brachial plexus
Contents of the axilla