KINES: 2SE Flashcards
full range of GH joint flexion
0-120 deg
shoulder complex joint that connects the entire upper ex to the body
sternoclavicular joint
which is true about sternoclavicular disc
sup attachment is pivot point for elevation and depression and disk is part of manubrium
sup attachment is pivot point for elevation and depression and disk is part of clavicle
sup attachment is pivot point for protaction and retraction and disk is part of manubrium
sup attachment is pivot point for protaction and retraction and disk is part of clavicle
sup attachment is pivot point for elevation and depression and disk is part of manubrium
which happens during shoulder elevation
anterior clavicular rot
inferior roll of humeral head
posterior tipping of scapula
inferior glide of clavicle at SC joint
inferior glide of clavicle at SC joint
for a paitent who manifests shoulder subluxation in dependent position, what dynamic structure should be checked
supraspinatus
2 primary agonists for scaption
anterior deltoid and supraspinatus
patient w painful shoulder abd only at 60-120 deg, but pain subsides afterwards. which is not a biomechanical exp
suprahumeral space is opened after 120 deg abd
supraspinatus is only active at early ranges where pain was observed
superior roll of humeral head approximates the greater tub to suprahumeral arch
inadequacy of scapular mechanics affects the position of coracoid and acromion process
supraspinatus is only active at early ranges where pain was observed
if suprascapular nerve is affected, what muscle is primarily responsible for shoulder ER regardless if pos in coronal plane
teres minor only
which is incorrect abt scapulohumeral rhythm
during setting phase scapular muscles primarily acts as synergists
more movement by the GH joint compared to scapulothoracic, SC and AC joints
clavicle moves prior to scapular movement
all are correct
clavicle moves prior to scapular movement
during shoulder abd, the steer muscles should contract especially at 90 deg shoulder abd. what role did these muscles assume during shoulder abd
synergists
which of the ff is correct abt the brachioradialis
spurt muscles that provides stabilizing force through elbow joint
more active in a fully pronated forearm than in midprone
aside from elbow flexion, it also acts as a pronator and supinator of forearm
produces weaker elbow force compared to bracialis and biceps brachii bc of unipennate
aside from elbow flexion, it also acts as a pronator and supinator of forearm
which is true abt elbow flexors
all primary elbow flexors are innervated by median nerve
ECRL acts as a weak elbow flexor
all muscles are in active insuff at elbow flexion, supination and shoulder flexion
brachialis is activated prior to biceps brachii
brachialis is activated prior to biceps brachii
muscles active when doing hammering
brachioradialis, brachialis, biceps brachii
which of the ff is true during seated push-up
biceps brachii is the agonist and triceps brachii is the antagonist at elbow joint
triceps brachii is the agonist and biceps brachii is the antagonist at elbow joint
both biceps and triceps co-contract to stabilize elbow joint
both biceps and triceps are not active
both biceps and triceps co-contract to stabilize elbow joint
true about forearm pronation
radius crosses over ulna; ulnar head rests on dorsal lip of ulnar notch
radius crosses over ulna; ulnar head rests on ventral lip of ulnar notch
ulna crosses over radius; ulnar head rests on dorsal lip of ulnar notch
ulna crosses over radius; ulnar head rests on ventral lip of ulnar notch
radius crosses over ulna; ulnar head rests on dorsal lip of ulnar notch
correct transmission of force during FOOSH injury
hand - radius - interossesous membrane - ulna - humerus
true about cubitus valgus
greater in female than male
explained by the lateral aspect of trochlea extending farther than medial
angle is measured from the longitudinal axes of humerus and radius
greater in female than male
morse type
elbow ext is greater when shoulder flexed. elbow ext with forearm supinated is greater than when it is pronated
only 2nd statement is correct
what exp elbow stability in extended
primarily by increased bony congruence and taut ligaments and secondarily by muscle control
what is the site of entrapment of the ulnar nerve proximal to the elbow joint
arcade of struthers
which of the following muscles would contract synergistically to prevent radial dev of wrist when the extrinsic muscles of the thumb contract
FCU
ECU
FCR
ECR
ECU
which finger has both proximal and distal interossei wings
second
which of the following fibro-osseous tunnels contain both FDP and FDS
C2
true about volar plate except
fibrocartilage impregnation of the capsule superficial to metacarpal head
firmly attached to the base of the proximal phalanx distally and to the metacarpal proximally
increases joint congruency and prevents hyperextension of the joint
firmly attached to the base of the proximal phalanx distally and to the metacarpal proximally
what type of joint is second metacarpal
plane
which is used as reference to measure angle of torsion
humeral head and neck and axis through humeral condyles
what is the plane of movement and axis of scapular upward motion
coronal; z-axis
what is the resting position of the scapula
5cm from midline through 2nd-7th ribs
which of the ff describes posterior scapular tipping
superior border moves anteriorly; inferior angle moves posteriorly
superior border moves posteriorly; inferior angle moves anteriorly
lateral border moves anteriorly; medial angle moves posteriorly
superior border moves posteriorly; inferior angle moves anteriorly
which of the ff is a correct ligament-function rela
interclavicular - limits depression
trapezoid - limits clavicular posterior rotation
superior GH - limits shoulder abd
interclavicular - limits depression
what is the passive insuff of medial head of tricpes
none of these
the ff form the rotator interval capsule except
superior GH
superior joint capsule
supraspinatus tendon
coracohumeral
supraspinatus tendon
among the rotator cuff tendons, which muscle is most commonly injured in the suprahumeral space
supraspinatus
what scapular motion is described as the movement of the superomedial border inferiorly and but the inferior angle superiorly
upward rotation
plane and axis of shoulder horizontal adduction
transverse plane; y-axis
which provides compressive force while internally rotating the GH joint
supraspinatus
infraspinatus
teres minor
subscapularis
subscapularis
what branch of radial nerve is impinged in the fibrous arch of the supinator muscle
posterior interosseous nerve
paresthesia on the hand during resisted pronation implies affectation of this nerve
median nerve
what structure acts to lift the elbow joint capsule out of the way during elbow flexion
biceps brachii
which of the ff is correct about anconeus
none of these
functional range of the elbow complex
100 degree-arc in sagittal plane; 100 degree-arc in transverse plane
active insufficiency of extensor carpi radialis brevis
elbow flexion, wrist extension and radial deviation
which of the ff is correct about the coronoid process
in extension, it is articulating with the coronoid fossa
in flexion, it is articulating with the coronoid fossa
it is always articulating w the coronoid fossa regardless of elbow pos
in flexion, it is articulating with the coronoid fossa
considered as the workhorse among elbow flexors
brachialis
considered as the workhorse among elbow extensors
medial head of triceps brachii
which of the ff muscles do not contribute to forearm pronation
pronator teres
pronator quadratus
FCR
biceps brachii
biceps brachii
the compound radiocarpal joint surface is oblique and angled slightly
volarly and ulnarly
which of the ff carpal bones is considered as location of the axis of flexion and extension
capitate
during radial deviation
the whole carpal bones as a unit slides ulnarly
what muscle is innervated by the ulnar nerve
APB
OP
adductor pollicis
adductor pollicis
which is commonly injured among carpal ligaments
scapholunate
which extensor tendon occupies the third dorsal compartment
extensor pollicis longus
true about VSI except
union of the lunate and triquetrum is disrupted
the lunate and scaphoid go into extension
distal carpal row extend
the lunate and scaphoid go into extension
which of the following does not provide an extensor moment surface
oblique retinacular ligament at the DIP joint
proximal wing tendon of palmar interossei
distal wing tendon of dorsal interossei at the IP joint
proximal wing tendon of palmar interossei
which power grips recruit the most activity of the interossei muscles
spherical
denervation of the median nerve will lead to atrophy of the thenar muscle causing this type of deformity
ape hand
