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Download MBBS Anatomy PPT 18 Axilla Notes

Download MBBS (Bachelor of Medicine, Bachelor of Surgery) Human Anatomy ppt lectures Topic 18 Axilla Notes. - anatomy ppt free download human anatomy ppt lectures, medicine notes ppt, anatomy handwritten notes pdf, mbbs 1st year anatomy notes pdf download, best anatomy notes pdf, human anatomy notes pdf, anatomy easy notes pdf, anatomy notes online, anatomy short notes, Anatomy ppt, Powerpoint Presentations and lecture notes.

This post was last modified on 05 April 2022

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1. Definition of Axilla

2. Boundaries

3. Cervico-Axillary Canal

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4. Spaces/ Gateways in posterior wall

5. Axillary folds & Sheath

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6. Contents of Axilla

7. Axillary artery- Parts & Branches

8. Axillary Vein & Lymph nodes

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9. Applied Anatomy

Axil a (arm pit)

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? Axil a is gateway to upper limb,

providing an area of transition

between neck & arm

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? Between upper arm & thoracic

wall

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? Boundaries

-Apex

-Base

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-Anterior wall

-Posterior wall

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-Medial wall

-Lateral wall


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What is Axilla?

? A region (the axillary space) associated

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with armpit.

? It actually begins around cervicoaxillary

canal, at edge of first rib.

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? It continues to armpit, with bottom being

axillary fascia. (remember? The lower

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attachment of the clavipectoral

membrane?)

? It has musculoskeletal boundaries that are

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lateral, medial, anterior and posterior.

AXILLARY SPACE

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MUSCLES

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Subscapularis M

Major structures

inside: Axil ary sheath

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Latissimus dorsi M

and contents!

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Teres major M

Most of the rest of the

space is adipose tissue.

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Pectoralis major M

Serratus anterior M

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Pectoralis minor M

Boundaries of Axilla

Apex/cervico-axial canal/Inlet

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?Directed towards the root of the neck
?Boundaries:

? Front: clavicle

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? Behind: upper border of scapula
? Medially: outer margin of 1st rib

?Transmits axillary vessels and brachial
plexus

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? Anterior wal :

? pectoralis major

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? pectoralis minor

? subclavius

? clavipectoral fascia

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Posterior wal :

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? Scapula

? Subscapularis

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? Teres major

? Latissmus dorsi (forms posterior axillary fold

Gateways in the posterior wall

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? Quadrangular space

? provides a passageway for nerves

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and vessels passing between the

axil a and the more posterior

scapular and deltoid regions

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? Boundaries are formed by:

? the inferior margin of the

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subscapularis/teres minor

muscles

? the surgical neck of the humerus;

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? the superior margin of the teres

major muscle

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? axil ary nerve and posterior

circumflex humeral artery and

vein passes through it

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Gateways in the posterior wall

? Triangular spaces

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? Upper triangular space: When

viewed from anteriorly, it is

formed

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? by:

? Medial margin of the long head

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of the triceps brachii

? Superior margin of the teres

major muscle;

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? Inferior margin of the

subscapularis/teres minor

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muscles.

? Circumflex scapular artery &

vein pass into this space.

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Gateways in the posterior wall

? Lower triangular interval is

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formed by:

? long head of the triceps

brachii muscle;

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? the shaft of the humerus;

? the inferior margin of the

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teres major muscle

? The radial nerve passes out of

the axil a traveling through

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this interval to reach the

posterior compartment of the

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arm.
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