Brachial Plexus
What structure(s) does the ulnar nerve travel through that can be a common site of entrapment?
Tunnel of Guyon
What muscle is innervated by the thoracodorsal nerve?
Latissimus Dorsi
What nerve supplies the lateral shoulder around the region known as the regiments patch?
Upper Lateral Cutaneous Nerve
What does TOS stand for? How would you define it?
Tony - Chug a diet 7-Up and don't burp for 1 minute.
Thoracic Outlet Syndrome, it is compression of the nerves and/or arteries traveling with the brachial plexus with common entrapment sites at the scalenes, subclavius, and pec minor.
+700 if you do it
Reflexes are good for testing what type of issue?
Spinal root legions/spinal injuries/spinal disease
What nerve arises from the superior trunk and innervates two of the rotator cuff muscles?
Suprascapular nerve
Name the muscles that comprise the rotator cuff and the nerves that innervate them.
Rhonan - Let Tony 5-star you
Supraspinatus and Infraspinatus - suprascapular nerve
Teres Minor - Axillary nerve
Subscapularis - Upper/Lower Subscapular nerve.
If you do it +1000, if you don't -200
What are two regions of the hand the recurrent median nerve supplies cutaneous distribution to?
Palmer branch - Anterior thumb and palm of first three digits to base of MCP joint.
Palmer Digital branch - Anterior digits of 2-3, DIP of posterior 2-3, DIP and medial edge of thumb.
Verbalize and demonstrate Adson's test for Anterior Scalene syndrome and what indicates a positive test.
in relation to examined side - ipsilateral rotation, contralateral flexion, and extension, patient may be encouraged to take a deep breath. if radial pulse is weakened or reproduction of symptoms occur, exam is positive.
Verbalize and demonstrate Wright's test for hyperabduction syndrome and what indicates a positive test.
Name one of the two nerves that arise from the brachial plexus, what muscle(s) they innervate and what there cutaneous distributions are?
Dorsal Scapular Nerve - Rhomboids major/minor, levator scapulae, the skin between the scapula and the spine.
Long Thoracic Nerve - Serratus anterior, no cutaneous distribution.
What are the muscles innervated for the anterior interosseus nerve in the forearm?
Flexor Pollicis Longus
Flexor Digitorum Profundus
Pronator Quadratus
Posterior Cutaneous Nerve of the arm
Posterior Cutaneous Nerve of the Forearm
Superficial Radial Nerve
Verbalize and demonstrate how you would perform the test for the latissimus dorsi.
Patient lies supine, support opposite ASIS, internally rotate arm, resist abduction force applied by physician.
Explain Froment's Paper test and what you are testing for.
Adduct thumb to pinch paper, if DIP of thumb flexes to perform test successfully, ulnar nerve is not innervating adductor pollicis correctly and AIN is working to compensate.
What space is a common site of entrapment of the axillary nerve and what muscles make this structure?
Quadrangular space, Long Head of the Triceps brachii, Teres Major, Teres Minor, Humerous
Which muscles are primarily responsible for ab/adduction of all the fingers and what are they innervated by?
Palmer and Dorsal interossei, Ulnar Nerve
This nerve begins as a cord in the brachial plexus, but becomes a cutaneous nerve in the forearm. What are these two nerves?
Tory: Facetime Reid and ask him if the rash in his crotch is clearing up
Musculocutaneous nerve and Lateral Antebrachium Cutaneous nerve.
If he's in the car with others - 500
If he's alone or doesn't answer - 200
Explain what the pinch test (sign of OK) is testing for and how to determine a positive test?
AIN, AIN supplies flexor pollicis longus and flexor digitorum profundus to flex DIP, if patient is unable to perform Sign of OK, there is an interference in the nerve telling these muscles to function.
What are some ways to differentiate between Pronator Teres Syndrome and Carpal Tunnel Syndrome?
What are the five branches of the brachial plexus and what muscles do they innervate?
Musculocutaneous - Biceps brachii, Brachialis, Coracobrachialis
Axillary - Deltoid and Teres minor
Radial - Triceps brachii, Anconeus, Supinator, Brachioradialis, extensors of the forearm
Median - Forearm Flexors, Forearm Pronators, Flexor pollicis longus/brevis, abductor pollicis brevis, oponens pollicis
Ulnar - Flexor carpi ulnaris, Flexor digitorum profundus, multiple hand muscles
What muscle forms the Arcade of Frohse?
Two heads of the Supinator
Describe the cutaneous pattern of the upper extremity.
Upper Lateral Cutaneous Nerve
Lower Lateral Cutaneous Nerve
Posterior Cutaneous Nerve of the Arm
Medial Cutaneous Nerve of the Arm
Lateral Antebrachial Cutaneous Nerve
Medial Cutaneous Nerve of the Forearm
Posterior Cutaneous Nerve of the Forearm
Median Nerve - Palmer and Digital branches
Ulnar Nerve - Palmer, Digital, and Dorsal branches
Superficial Radial Nerve
Name all 5 MSR tests we have discussed and what they include?
Not typing this, sorry lol.
With a partner, demonstrate examining the 5 dermatomes of the upper extremity.
C5 - Lateral Brachium
C6 - Anterolateral Antebrachium to tip of thumb
C7 - Anterior Antebrachium to tip of digits 2-4
C8 - Anteromedial Antebrachium to tip of 5th digit
T1 - Medial Brachium to mid Antebrachium