C-spine
origins of the SCM
mastoid process and superior nuchal line
Actions of pec minor
scapular depression, protraction, downward rotation
helps with rib elevation during forced respiration
Biceps insertion?
Triceps insertion?
radial tuberosity
olecranon process
Where do EPL and EPB originate?
interosseous membrane
What 3 nerves come off the posterior cord of the brachial plexus?
upper and lower subscapular nerves, thoracodorsal nerve
insertion of levator scap
root of the scapular spine
Lat insertion?
and name another muscle that attaches there.
intertubercular sulcus of humerus
pec major and teres major
What 2 muscles originate at the lateral supracondylar ridge of the humerus
ECRL and brachioradialis
Name a muscle innervated by the deep branch of the ulnar nerve
Adductor pollicis, deep head of FPB
What nerve innervates the muscles of mastication?
V3 (mandibular branch of the trigeminal nerve)
Actions of: splenius capitus and cervicis?
and semispinalis capitus and cervicis?
What kind of muscles are these?
both do extension
splenius does IPSILATERAL rotation (angles in)
sempispinalis does CONTRALATERAL rotation (angles out)
postvertebral
Name an action of the upper, middle AND lower trap
U: scapular elevation
M: retraction
L: depression
U+L= upward rotation
Innervation of teres major + minor
Teres major=
Teres minor=
Name a muscle that either originates or inserts at the palmar aponeurosis
palmaris longus inserts, palmaris brevis originates
Which 2 cranial nerves contribute to the gag reflex?
9 (afferent/sensory part) and 10 (efferent/motor part)
Action AND innervation of serratus posterior superior
Elevates and depresses the ribs
VPR
What nerve root does the dorsal scapular nerve arise from?
Name 2 muscles it innervates.
C5
levator scap, rhomboids
How would you test the strength of the following muscles?
Biceps
Brachialis
Brachioradialis
Elbow flexion with supination
With pronation
With neutral grip
Name a muscle that inserts at each of the following bones:
- pisiform
- hook of hamate
- trapezium
- 5th metacarpal
pisiform: FCU, abductor digiti minimi
hook of hamate: FCU, FDMB, ODM
trapezium: FPB, APB, OP
5th met: FCU, ECU, ODM
Describe the posture of the affected arm.
C5-6 (upper trunk)
Waiter's tip deformity (shoulder IR, elbow extended and pronated, palm faces out)
A= 1st rib
M= 1st rib and posterior groove for subclavian artery
P= 2nd rib
Name 5 muscles that originate/insert to the clavicle.
SCM, traps, subclavius, pec major and deltoid
Name 5 muscles that originate on either the medial or lateral epicondyle (your pick)
Lateral: ECRB, ED, EDM, ECU, supinator, anconeus
Medial: PT, FCR, PL, FCU, FDS
Name 3 muscles innervated by the AIN.
Will these muscles be affected in carpal tunnel?
FDP (digits 2+3), FPL, PQ
NO (this is above the entrapment site... these can be affected in pronator teres syndrome though)
Name at least 2 cranial nerves that exit from the superior orbital fissure.
Name at least 2 cranial nerves that exit from the jugular foramen.
Superior orbital fissure= 3, 4, 6, V1 (ophthalmic division of the trigeminal nerve)
Jugular foramen= 9, 10, 11