Roll over mouse to demonstrate axilla



The space between the upper part of the upper arm laterally and the upper part of the chest wall medially. Its walls are as follows

The anterior wall is muscular and made up of the following muscles


Pectoralis major


Pectoralis minor




Clavipectoral fascia

Posterior wall is made up of the following muscles




      Teres major


Latissimus dorsi


Lateral wall is made up of the upper part of humerus and conjoint muscles of coracobrachialis and short head of biceps brachii.

Medial wall is made up of the upper 4 digitations of serratus anterior together with the upper four intercostal spaces containing the intercostals muscles.

Base: The base of the axilla is formed simply by the axillary fascia.

It contains the following


BONES: Upper four ribs and costal cartilage

Muscles: Pectoralis major, pectoralis minor, subclavius, latissimus dorsi, subscapularis, serratus anterior.


Arteries: Axillary artery and branches


Veins: Axillary veins and tributaries


Nerves: Branches of brachial plexus


Others: Fat, lymphatic vessels and nodes.

Elementary dissector Advanced dissector

Full lecture

Practical: Living anatomy
               Museum anatomy

Pectoral locator Pectoral rotator Pectoral assembler


There is nothing in anatomy not found in this website

Electronic School of Medicine
Creator: Oluwole Ogunranti


DIGITAL LOCATOR OF PECTORAL REGION: Layer 1- skin; Layer 2- superficial fascia, including breast; Layer 3 deep fascia; Layer 4- superficial musclea; Layer 5, intermediate muscles, Layer 6- deep muscles; Layer 7- pectoral joints; Layer 8- layer of bones.  Rollover mouse to label; click to display.




























Lymph drainage
Clinical anatomy

Clinical examination
Surgical approach to axilla
Putti-Platt procedure to shoulder
See body map

Main Subject Course Links

eAnatomy eAnesthesia eBiochemistry eChemical pathology eCommunity Health
eDermatology eENT eGynecology eHematology eImaging
eMedicine eMedical microbiology eObstetrics eOphthalmology ePathology
ePediatrics ePharmacology ePhysiology ePsychiatry    eSurgery/eOrthopedics
eLab eOSCE eProcedures eInvestigations eSchool/Videopage
eOrgans eLocator Anatomy Museum eDissector eFractures/Dissect-it-yourself
All diseases eClerking eTreatment eDoctor ePatient