Neurovascular Pop Quiz

The brachial artery is a direct continuation of which artery?

• Ulnar artery

• Axillary artery

• Radial artery

• Subclavian artery

Which nerve provides motor innervation to the deltoid muscle?

• Radial nerve

• Axillary nerve

• Musculocutaneous nerve

• Suprascapular nerve

The profunda brachii artery primarily supplies which of the following structures?

• Biceps brachii

• Coracobrachialis

• Triceps brachii

• Pectoralis major

The elbow joint receives its arterial supply primarily from which of the following arteries?

• Brachial artery

• Ulnar recurrent arteries

• Radial recurrent arteries

• All of the above

A patient presents with a midshaft humeral fracture. Which artery is most at risk of injury?

• Profunda brachii artery

• Axillary artery

• Radial artery

• Subclavian artery

A man has an incision sited that runs 8cm from the deltopectoral groove to the midline. Which one of the following is not at risk of injury?

• Cephalic Vein

• Pectoralis Major

• Shoulder joint capsule

• Axillary Artery

A 22-year-old student presents to the emergency department. Earlier today he went to the gym to lift weights. He was bench pressing 120kg when he felt a sharp pain on the right side of his chest and heard a snapping noise. His friend was able to come to his aid and ensure the weight didn't hurt him. He feels the right side of his chest is swollen and reports bruising on his right arm. On examination, you find the patient's chest is asymmetrical, with the musculature on the right looking 'bunched up'. The patient's history and examination indicate a tear of his pectoralis major tendon. Where does this tendon usually insert?

• Lesser tubercule of the humerus

• Pectineal line

• Greater tubercule of the humerus

• Lateral lip of the intertubercular sulcus

Difficulty raising the shoulder might indicate damage to which of the following nerves?

• CN XI

• CN X

• CN IX

• C4

The nerve supply to the deep muscles of the back comes from the _______ primary rami.

The blood supply to the pectoralis major does NOT come from a direct or indirect branch of the ________ artery.

• internal carotid

• subclavian

• thoracoacromial

• internal thoracic