Neurovasculature of the shoulder and arm

This tutorial explores the neurovascular anatomy of the shoulder and arm, focusing on the arteries, veins, and nerves. It begins with an introduction to the topic, followed by a detailed examination of the arterial supply, including the subclavian, axillary, and brachial arteries. The venous drainage is then discussed, highlighting both deep and superficial veins. The tutorial also covers the nerves of the shoulder and arm, emphasizing the brachial plexus and its branches. Clinical notes on radial nerve injury are provided, concluding with a summary of key points.

What analogy is used to introduce the neurovascular structures in the tutorial?

• A compass

• A multi-folding road map

• A GPS device

• A smartphone

Which artery is a continuation of the subclavian artery?

• Axillary artery

• Ulnar artery

• Radial artery

• Brachial artery

What mnemonic is suggested to remember the branches of the axillary artery?

• Save the Lions and Protect Simba

• Save the Tigers and Protect Simba

• Save the Lions and Protect Nala

• Save the Tigers and Protect Nala

Which vein is formed by the union of the radial and ulnar veins?

• Axillary vein

• Brachial vein

• Basilic vein

• Cephalic vein

What is the term used to describe veins that accompany an artery?

• Veni comitantes

• Veni collaterals

• Veni conduits

• Veni companions

Which nerve innervates the supraspinatus and infraspinatus muscles?

• Axillary nerve

• Suprascapular nerve

• Radial nerve

• Musculocutaneous nerve

From which part of the brachial plexus does the musculocutaneous nerve arise?

• Superior trunk

• Lateral cord

• Medial cord

• Posterior cord

Which nerve is the largest in the upper limb?

• Radial nerve

• Axillary nerve

• Median nerve

• Ulnar nerve

What is a common cause of radial nerve injury?

• Shoulder dislocation

• Elbow dislocation

• Humeral fracture

• Wrist fracture

Which symptom is NOT associated with radial nerve injury?

• Inability to straighten the arm

• Weakness in the wrist

• Numbness in the thumb

• Loss of sensation in the little finger