The Axilla | Boundaries and Contents

The video provides an overview of the axilla, a pyramid-shaped space in the armpit region, serving as a passageway for nerves and blood vessels. It details the axilla's boundaries, including the anterior, posterior, medial, and lateral walls, and discusses its contents like the axillary artery, vein, and brachial plexus. The video also explores the apex and base of the axilla, emphasizing the importance of understanding its anatomy for medical applications.

What is the primary function of the axilla?

• To support the shoulder joint

• To protect the heart

• To serve as a passageway for nerves and blood vessels

• To store fat

Which muscles form the anterior wall of the axilla?

• Latissimus dorsi and teres major

• Subscapularis and infraspinatus

• Serratus anterior and thoracic wall

• Pectoralis major and minor

What composes the medial border of the axilla?

• Pectoralis major

• Serratus anterior and thoracic wall

• Latissimus dorsi

• Coracobrachialis

Which structure is NOT part of the apex of the axilla?

• Clavicle

• Humerus

• First rib

• Superior border of the scapula

What is the base of the axilla primarily composed of?

• Pectoralis major

• Axillary fascia

• Serratus anterior

• Subscapularis

Why is it advised not to lean on axillary crutches?

• It can cause shoulder dislocation

• It can cause skin irritation

• It can lead to muscle atrophy

• It can damage blood vessels and nerves in the axilla

What major structures pass through the axilla to supply the arm?

• Femoral artery and vein

• Radial and ulnar nerves

• Axillary artery, vein, and brachial plexus

• Carotid artery and jugular vein