Brachial Plexus

What is the nerve prone to injury in surgical neck fracture of the humerus?

• axillary nerve

• radial nerve

• median nerve

• musculocutaneous nerve

• ulnar nerve

What is the nerve prone to injury in midshaft fracture of the humerus?

• axillary nerve

• radial nerve

• median nerve

• musculocutaneous nerve

• ulnar nerve

Regarding the brachial plexus, the posterior cord is formed by

• anterior division of upper & middle trunk (C5, C6, C7)

• posterior division of upper, middle & lower trunk (C5, C6, C7, C8, T1)

• anterior division of lower trunk (C8, T1)

• posterior division of upper, middle, and anterior division of lower trunk (C5, C6, C7, C8, T1)

• posterior division of lower trunk (C8, T1)

What is the nerve prone to injury in lower plexus injury of the brachial plexus?

• axillary nerve

• radial nerve

• median nerve

• musculocutaneous nerve

• ulnar nerve

What is the nerve prone to injury in supracondylar fracture of the humerus?

• axillary nerve

• radial nerve

• median nerve

• musculocutaneous nerve

• ulnar nerve

Which of the following reflexes can be used to test for function of spinal nerves C7 & C8?

• Biceps tendon reflex

• Brachioradialis tendon reflex

• Triceps tendon reflex

Check all the muscles that are not supplied by the brachial plexus.

• levator scapulae

• serratus anterior

• trapezius

• latissimus dorsi

• sternocleidomastoid

Which man would be more likely to get lower brachial plexus injury?

• the left one

• the right one

Which of the following match between the branch of the axillary artery and the space it passes through is correct?

• Suprascapular artery; triangular space

• Posterior circumflex humeral artery; triangular interval

• Circumflex scapular artery; triangular space

• Profunda brachii; triangular interval

• Subscapular artery; quadrangular space

When ligating the axillary artery from the posterior, what anatomical landmark should be noted in order to ensure that the blood supply to the hand is blocked effectively?

• subscapular artery

• suprascapular artery

• circumflex scapular artery

• dorsal scapular artery

• profunda brachii