A football player suffers a separated shoulder. Which joint is likely injured?

A stabbing injury to the bicep causes difficulty in elbow flexion. Which nerve is likely damaged?

Hitting the medial epicondyle causes tingling in the 4th and 5th digits. Which nerve is involved?

A patient cannot abduct her shoulder after a humeral neck fracture. Which nerve is injured?

Carpal tunnel syndrome results from compression of which nerve?

A patient cannot flex the first three digits or oppose the thumb (Hand of Benediction). Which nerve is injured?

A friend calls you in a panic saying that after bumping some part of his arm (he can't remember) his medial two lumbricals curled up to resemble a part of a claw. What nerve did your friend likely injure?

Which nerve is injured at the radial groove of the humerus?

Which nerve is injured at the medial epicondyle?

Which nerve is injured at the distal end of the humerus?

A patient is following up in your office after being injured in a car crash. He tells you that the ER doctor explained to him that because he injured his deltoid he will be unable to abduct his arm, but is confused because he can still abduct it about 15 degrees. You explain to him this is because he is using what muscle to initiate the abduction?

A colleague tells you that one of his patient has a lesion of the dorsal scapular nerve. What muscles are affected by this lesion?

A tennis player comes into your practice complaining of a rotator cuff injury. Which muscles could be injured?

You explain to a patient that she has an injury to her thoracodorsal nerve and that she should expect to have trouble with what actions?

A patient complains of a loss of sensation in the lateral portion of his forearm. Which cutaneous nerve is damaged and from which nerve of the brachial plexus did it come?

Your friend calls you on her way back from the doctor's office and tells you that she has a fractured surgical neck of the humerus. She said that the doctor told her to expect not to be able to abduct her shoulder because her deltoid and teres minor muscles had the nerve innervating them damaged. She is concerned though because she has lost sensation in her shoulder and forgot to ask her doctor about that. You tell her that it is likely due to an injury of which nerve that came from which nerve of the brachial plexus?

Your brother, who is also a medical student, has carpal tunnel syndrome. He asks why he can still feel his fingers since he knows his injury is due to a medial nerve compression. You explain to him that the cutaneous branch of the medial nerve doesn't pass through the carpal tunnel. What is the name of this branch?

You are walking with a friend when he bangs his medial epicondyle on a table. He complains about the tingling sensation down his arm and into his medial two digits because he banged his ulnar nerve, but can't explain why he has lost sensation in the medial part of his palm and hand? You explain to him that it is because the ulnar nerve's two cutaneous branches are?

Your gross anatomy lab instructor points to a space and tells you that it is the cubital fossa and asks you what its contents are. You respond:

There is an upper and lower triangular space. What is contained in each?

You find a space bordered by Teres Major, Teres Minor, Triceps brachii, and the humerus. Your classmate tells you that this is the quadrangular space. What is contained in the quadrangular space?

The serratus anterior is a muscle required to raise your hand above your head. Which nerve innervates it?

A patient comes in with a winged scapula and an inability to raise his arm over his head. You immediately suspect an injury to which muscle?

You have a friend who, for some reason, likes to flex his forearms to show off. Which muscle is used for forearm flexion?

The deltoid is involved in many movements of the arm, but not adduction. Which muscle, in addition to flexing, also is used in arm adduction?

Two critical components of the rotator cuff, the supraspinatus and infraspinatus, are both innervated by which nerve?

A lesion on the C8 Spinal nerve root will affect all of the following except:

A pt. is showing weakness in elbow flexion. What might be damaged?

A lesion on the anterior division of the lower trunk just before it becomes the medial cord will affect all of the following except:

Honeymooner's palsy would affect what muscles the most?

A pt. cannot pinch their right index and thumb fingers together at the tips to make the "OK" sign (Try to remember when you use this test). What other muscle might be affected if the nerve that supplies the muscle of this action is damaged?

Weakness in shoulder retraction could be due to a lesion on which structure?

Medial winging of the scapula would indicate damage to which of the following:

You detect weakness in a pt.'s hypothenar muscles. You also find weakness in a pt.'s triceps. Without performing further testing, what do you suspect might be damaged?

Which of the following muscles are NOT innervated by the C5 Spinal nerve?

All of the following are innervated by the Deep Ulnar Nerve except:

Damage to the Lower Trunk of the Brachial Plexus would lead to all of the following except:

Damage to the Radial Nerve might manifest as:

A pt. comes into your clinic after having surgery on their biceps tendon in the cubital fossa. There was a complication in the surgery and now they have weakness in their FA flexors that is not due to muscle damage and they can still pronate their forearm. What nerve structure may have been damaged?

Damage to the anterior division of the upper trunk of the Brachial Plexus would affect:

Damage to the posterior division of the lower trunk would affect all of the following except:

Damage to the middle trunk would affect which of the following most?

Weakness in muscles involved in scapular stabilization might indicate damage to all of the following except:

A lesion on the C8 spinal nerve might lead to decreased sensation to all of the following except:

What portion of the brachial plexus are in the axilla?