At Arm's Length
Pass Me a Joint
Baby Got Back
(and shoulder)
(and shoulder)
You're Getting on My Last Nerve...
Clinical Correlates
100
Name this bone.
What is hamate?
100
Unique motion of the thumb shown below.
What is opposition?
100
I am innervated by the accessory nerve.
What is trapezius?
100
I innervate levator scapulae and the rhomboids
What is dorsal scapular nerve?
originates from anterior rami of C5
100
Damage to this nerve causes winged scapula.
bonuses: what muscle does it innervate? what cervical nerves is it composed of?
What is long thoracic n.?
innervates serrates anterior - originates off superior trunk of brachial plexus and is composed of C5, C6, C7
200
We can be seen in the triangular interval of the arm (a nerve and an artery).
radial n. & profunda brachii a.
200
Allows you to rock your head forward and back (aka: head banging)
What is the atlanto-occipital joint?
(articulations = occipital condyles & superior articular facets of atlas)
200
This muscle initiates abduction of the arm.
Bonus: where does it insert?
What is supraspinatus?
Tendon inserts on greater tubercle of the humerus
200
These 2 cords make up the median nerve.
What are the lateral and medial chords?
200
Popeye deformity, seen below, is typically caused by the proximal rupture of what muscle? (be specific)
What is the long head of biceps brachii?
proximal rupture = muscle moves distally toward the elbow
300
This artery is the main supply to the muscles in the posterior compartment of the forearm.
What is the deep brachial artery?
(common interosseous and radial also contribute)
300
The atlantoaxial joint is an example of this.
What is pivot joint?
rotational motion (look left and right)
300
The three muscles that attach to the coracoid process
pec. minor + short head of the biceps + coracobrachialis
300
I innervate subscapularis and one other muscle.
Bonus: what's the other muscle?
What is the lower/inferior subscapular nerve (off the posterior cord)?
Also innervates teres major
300
Patient presents with severe pain over anatomical snuffbox after falling on an outstretched hand. Likely diagnosis?
What is a fracture at the scaphoid neck?
400
Name this bone.
What is trapezium?
400
This is an example of what kind of joint?
What is condyloid joint?
Allows movement in two planes - flexion/extension and abduction/adduction
400
The action of the two rotator cuff muscles that insert on the greater tubercle of the humerus
laterally rotate and adduct the arm
(teres minor and infraspinatus)
400
The long thoracic nerve is derived from these roots.
What is C5, C6, & C7?
400
A patient presents with inability to extend the fingers fully at the interphalangeal joints (most pronounced on digits 4 & 5). What nerve has been damaged?
What is ulnar n.? (ulnar claw)
500
This muscle has the most distal origin of all ante brachium muscles.
What is pronator quadrates?
500
These joints allow for limited extension, lateral motion, and torsion of the spine (maintains flexibility and stability).
What are the uncovertebral joints?
500
What muscles create/surround the quadrangular space?
What are teres minor, teres major, & the long head of triceps brachii?
500
There are two nerves that originate off the superior trunk. What are they and what do they supply?
What are n. to subclavius (supplies subclavius...) and suprascapular n. (supplies supraspinatus and infraspinatus)?
500
A patient presents with wrist-drop. What nerve is affected, and where specifically is the lesion/damage?
What is the radial n. between the heads of the supinator?