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Questions and Answers
What structures form the anterior wall of the axilla?
What structures form the anterior wall of the axilla?
- Teres major, latissimus dorsi, subscapularis
- Axillary artery, axillary vein, brachial plexus
- Coracobrachialis, short head of biceps brachii, humerus
- Pectoralis major, clavipectoral fascia, pectoralis minor (correct)
What is the continuation of the axillary artery?
What is the continuation of the axillary artery?
- Subclavian artery
- Inferior vena cava
- Superior vena cava
- Brachial artery (correct)
Which part of the axillary artery gives rise to 3 branches?
Which part of the axillary artery gives rise to 3 branches?
- Posterior/deep part
- Proximal/superior part
- Distal/inferior part (correct)
- Outer border of 1st rib
Where does the lateral wall of the axilla converge with the anterior and posterior walls?
Where does the lateral wall of the axilla converge with the anterior and posterior walls?
Which structure is found in the contents of the axilla?
Which structure is found in the contents of the axilla?
What forms the posterior wall of the axilla?
What forms the posterior wall of the axilla?
What is the most common site for boils according to the given text?
What is the most common site for boils according to the given text?
Which area of the body do axillary lymph nodes drain according to the text?
Which area of the body do axillary lymph nodes drain according to the text?
What is the most severe paralysis related to the brachial plexus birth injury according to the text?
What is the most severe paralysis related to the brachial plexus birth injury according to the text?
What causes Klumpke's paralysis according to the text?
What causes Klumpke's paralysis according to the text?
Which muscle is mainly affected in Erb's paralysis according to the given text?
Which muscle is mainly affected in Erb's paralysis according to the given text?
What deformity is associated with injury to the nerve to serratus anterior according to the text?
What deformity is associated with injury to the nerve to serratus anterior according to the text?
Flashcards
What structures form the anterior wall of the axilla?
What structures form the anterior wall of the axilla?
Pectoralis major, clavipectoral fascia, and pectoralis minor muscles form the anterior wall of the axilla.
What is the continuation of the axillary artery?
What is the continuation of the axillary artery?
The axillary artery becomes the brachial artery as it continues down the arm.
Which part of the axillary artery gives rise to 3 branches?
Which part of the axillary artery gives rise to 3 branches?
The distal or inferior part of the axillary artery branches into three distinct blood vessels.
Where does the lateral wall of the axilla converge with the anterior and posterior walls?
Where does the lateral wall of the axilla converge with the anterior and posterior walls?
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Which structure is found in the contents of the axilla?
Which structure is found in the contents of the axilla?
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What forms the posterior wall of the axilla?
What forms the posterior wall of the axilla?
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What is the most common site for boils?
What is the most common site for boils?
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Which area of the body do axillary lymph nodes drain?
Which area of the body do axillary lymph nodes drain?
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What is the most severe paralysis related to the brachial plexus birth injury?
What is the most severe paralysis related to the brachial plexus birth injury?
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What causes Klumpke's paralysis?
What causes Klumpke's paralysis?
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Which muscle is mainly affected in Erb's paralysis?
Which muscle is mainly affected in Erb's paralysis?
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What deformity is associated with injury to the nerve to serratus anterior?
What deformity is associated with injury to the nerve to serratus anterior?
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Study Notes
Axilla Structure
- The anterior wall of the axilla is formed by the pectoralis major muscle, pectoralis minor muscle, and subclavius muscle.
- The lateral wall of the axilla converges with the anterior and posterior walls at the anterior axillary fold.
Axillary Artery
- The axillary artery is a continuation of the subclavian artery.
- The part of the axillary artery that gives rise to 3 branches is the second part.
Axilla Contents
- The axilla contains the axillary artery, axillary vein, and brachial plexus.
Axilla Walls
- The posterior wall of the axilla is formed by the subscapularis muscle, teres minor muscle, and teres major muscle.
Clinical Notes
- Boils are most commonly found in the axillary region.
- Axillary lymph nodes drain the upper limb, except for the hand.
- The most severe paralysis related to the brachial plexus birth injury is Erb's paralysis.
- Klumpke's paralysis is caused by injury to the lower trunk of the brachial plexus.
- Erb's paralysis mainly affects the deltoid muscle.
- Injury to the nerve to serratus anterior leads to a "winged scapula" deformity.
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Description
This quiz covers the anatomical details of the axilla, including its boundaries, such as the apex, anterior, posterior, and medial walls, and the structures that contribute to these boundaries. It also discusses the layers and fascia of the axilla.
