Getting on Your Nerves
prefixed
___ BNP presents a superior root of C4 and an inferior root of C8
postfixed
___ BNP presents a superior root of C6 and an inferior root of T2; inferior trunk may be compressed by 1st rib producing neuromuscular symptoms
posterior
___ division includes: axillary and radial branches
anterior
___ division includes: musculocutaneous, median, and ulnar branches
trapezius
accessory nerve (CN XI) innervates what muscle?
flexors
all muscles of the anterior compartment of the arm and forearm are ___ and are supplied by the lateral and medial cords of the BNP
extensors
all muscles of the posterior compartment of the arm and forearm are ___ and are supplied by the posterior cord of the BNP
flexor
anterior divisions of BNP supply anterior (___) compartments of upper limb
deltoid; teres minor
axillary nerve innervates which muscles?
musculocutaneous
coracobrachialis, biceps brachii, and brachialis are innervated by the ___ nerve
axillary
cords of BNP are named according to their relationship to ___ artery
axillary
deltoid and teres minor are innervated by the ___ nerve
levator scapulae; rhomboids
dorsal scapular nerve innervates which muscles?
ulnar
flexor carpi ulnaris and 1/2 flexor digitorum profundus are innervated by the ___ nerve; [if you had give up one this would be the nerve you forfeit]
pectorals
lateral and medial pectoral nerves innervate what muscle pair?
thoracodorsal
latissimus dorsi is innervated by the ___ nerve
dorsal scapular
levator scapulae and rhomboids (minor and major) are innervated by the ___ ___ nerve
serratus anterior
long thoracic nerve innervates what muscle?
teres major; lower subscapularis
lower subscapular nerve innervates which muscles?
median
most flexor muscles in forearm and 5 hand muscles are innervated by the ___ nerve; [also known as worker's nerve] ***
coracobrachialis; biceps brachii; brachialis
musculocutaneous nerve innervates which muscles?
lateral medial pectoral
pectorals (major and minor) are innervated by both the ___ and ___ ___ nerves
extensor
posterior divisions of BNP supply posterior (___) compartments of the upper limb
triceps brachii; anconeus; brachioradialis; ALL extensor muscles of forearm
radial nerve innervates which muscles?
long thoracic
serratus anterior is innervated by the ___ ___ nerve
subclavius
subclavian nerve innervates what muscle?
subclavian
subclavius is innervated by the ___ nerve
supraspinatus; infraspinatus
suprascapular nerve innervates which muscles?
suprascapular
supraspinatus and infraspinatus are innervated by the ___ nerve
t
t/f all branches are divided into two regions: supraclavicular (arise from roots and trunks of BNP and are approachable through neck) and infraclavicular/terminal branches (arise from cords of BNP and are approachable through axilla)
t
t/f factors affecting the stability of synovial joints: shape of articular surfaces, degree of bone to bone fit, cartilage/labrums/menisci; muscle tone; negative atmospheric pressure; capsular ligaments
t
t/f infraclavicular branch includes: musculocutaneous, median, ulnar, axillary, and radial nerves [also includes 7 other nerves]
t
t/f long thoracic nerve exits through anterior scalene muscle
t
t/f supraclavicular branch includes: dorsal scapular, long thoracic, subclavian, and suprascapular nerve
t
t/f the median nerve supplies no muscles in brachium
t
t/f the radius and ulna, along with the interosseous membrane between them, can be used as the divisions between the anterior and posterior compartments of the forearm
lower subscapular
teres major and lower subscapularis are innervated by the ___ ___ nerve
scalene
the BNP passes through the ___ triangle
humerus
the ___ can be used as a division between the anterior and posterior compartments of the arm
latissimus dorsi
thoracodorsal nerve innervates what muscle?
accessory (CN XI)
trapezius is innervated by the ___ nerve
radial
triceps brachii, anconeus, brachioradialis, ALL extensor muscles of forearm are innervated by the ___ nerve
flexor carpi ulnaris; 1/2 flexor digitorum profundus
ulnar nerve innervates which muscles?
upper subscapularis
upper subscapular nerve innervates which muscle?
upper subscapular
upper subscapularis is innervated by the ___ ___ nerve