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Anatomy Written > joints & bones of u.l > Flashcards

joints & bones of u.l Flashcards

1
Q

What bones compose the shoulder girdle

A

clavicle & scapula

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2
Q

what type of joint is the sternoclavicular joint?

A

plane synovial joint

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3
Q

what ligaments make the sternoclavicular joints?

A

-interclavicular ligaments
-costoclavicular ligaments
-ant. & post. sternoclavicular ligaments

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4
Q

What movements can be perfomed by the sternoclavicular joint?

A

1.cirucmduction
2.rotation (axis of clavicle)
3.protaction&rotraction (transverse plane , vertical axis)
4.Elevation & depression (frontal plane , saggital axis)

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5
Q

What accesory is found i n the sternoclavicular joint?

A

articular discs

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6
Q

What type of joint is the acromioclavicular joint?

A

plane synovial joint

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7
Q

What are the ligaments of the acromioclaviculafr joint?

A

coracoclavicular ligaments (conoid & trapezoid lig.)
acromioclavicular ligaments
coracoacrommial ligaments

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8
Q

what movements are usually associated with the movements of the acrmioclavicular joint?

A

movements of the scapula(which are usually associcated with movements of the sjoulder joint and humerus )

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9
Q

What movements can be perfomed by the acromioclavicular joints?

A

-rotraction&protraction (transverse plane, vertical axis)
-elevation & depression (frontal plane& saggital axis)
-circumduction
-rotation (along axis of clavicle)

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10
Q

What accesory doe sthe acromioclavicular joint have ?

A

articular dics

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11
Q

What is the other name of the shoulder joint?

A

glenohumeral joint

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12
Q

What are the articular facets of the glenohumeral joint?

A

the glenoid labrum and head of humerus

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13
Q

What ligaments make up the glenohumeral joints?

A

-coracohumeral ligampent
-coracoacromial ligament
-glenohumeral ligament

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14
Q

What movements can be perfomed by the glenohumeral joint

A

-abduction&adduction (coronal plane, saggital axis)
-flexion&extension (transverse plane, saggital axis )
-rotation
-circumduction

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15
Q

What are the accessory structures of the glenohumeral joint?

A

-Glenoid labrum:cartilaginous largin that enlarges the articular cavity
-Bursae: sacs filled with synovial fluid
-fibrous capsule : envelops joint from glenoid labrum to anatomical neck + contains origin for tendon of long bicep muscle

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16
Q

What muscles participate in the flexion of the glenohumera joint?

A

4: deltoid & biceps brachii & pectoralis major & coracobrachialis

D.B.P.C

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17
Q

What muscles participate in the extension of the glenohumeral joint?

A

4:deltoid & triceps brachii & teres major & latissimus dorsi.
D.T.T.L

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18
Q

What muscless participate in the abduction of the glenohumeral joint?

A

(3) : deltoid & biceps brachii & supraspinatous.

D.B.S

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19
Q

What muscles participate in the adduction of the glenohumeral joint?

A

(6) : deltoid & triceps brachii & pectoralis major & teres major &
coracobrachialis & latissimus dorsi.
D.T.P.T.C.L/ DTL PCT

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20
Q

What muscles participate in the internal rotation of the glenohumeral joint?

A

deltoid & biceps brachii & pectoralis major & teres major &
subscapularis & latissimus dorsi

D.B.P.T.S.L

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21
Q

What muscles participate in the external rotation of the glenohumeral joint?

A

deltoid & teres minor & infraspinatus

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22
Q

How do we call the muscles that form a thick “cuff” over the glenohumeral joint?

A

rotator cuff muscles

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23
Q

What are the roator cuff muscles?

A

Supraspinatus
Infraspinatus
Teres MINOR
Subscapularis
originate on scapula and inser on humerus

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24
Q

What are the function(s) of the roator cuff muscles?

A

to stabilize the shoulder joint and elevating and rotating the arm
-primary stabilizers because its ligaments are weak
-prevent dislocation of humerus

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25
What are the bones of the elbox joint?
humerus radius ulna
26
What are the joints of the elbow joint?
proximal radioulnar joint humeroulnar joint humeroradial joint
27
Type , articular facets , movement of proximal radioulnar joint
type: pivot synovial joint articular facets: articular circumference of radius and notch of ulna movements: supination & pronation
28
Type , articular facets , movement of humeroulnar joint
type : pivot joint (axial joint) articular facet : trochlea of humerus & trochlear notch of ulna movement: flexion - extension
29
Type , articular facets , movement of humeroradial joint
type: ball and socket articular facets: capitulum of humerus and articular facet of radius movements it's multiaxila so
30
What are the ligaments of the elbow joints?
-ulnar collateral liagments -radial collateral ligaments -annular ligaments of radius
31
what are the accesories of the elbow joint?
capsule sacciform recess
32
What muscles participate in the flexion of the elbow?
biceps brachii brachialis brachioradialis pronator teres B.B.B.P
33
What muscles participate in the extesions of the elbow?
anconeus triceps brachii
34
What muscles participate in the supination of the elbow joint?
supinator biceps brachii brachioradialis
35
What muscles participate in the pronation of the elbow joint?
pronator teres pronator quadratus brachioradialis
36
What is the other name of the wrist joint?
radiocarpal joint
37
What are the articulating surfaces of the wrist joint?
distand end of radius with its articular disc and promixal row of carpal bones (except pisiformis)
38
What are the ligments of the wrist joint
palmar and dorsal radiocarpal ligaments ulnar and radial collateral ligaments
39
what type of joint is the wrist joint?
condyloid or elipsoid joint (biaxial joint)
40
What movements can be perfomed by the wrist joint?
flexion-extension adduction-abduction
41
What muscles perform the flexion of wrist joint?
flexor carpi radialis flexor carpi ulnaris with assistance of flexor digitorum superficialis
42
What muscles perform the extension of wrist joint?
extensor carpi radialis longus&brevis extensor carpi ulnaris with assitance of extensor digitorum
43
what muscles adducts the wrist joint
extensor carpi ulnaris flexor carpi ulnaris
44
what muscles abducts the wrist joint
extensor carpi radialis longus&brevis abductor pollicis longus flexor carpi radialis
45
What branches of 3 nerves innervated the wrist?
Median nerve – Anterior interosseous branch. Radial nerve – Posterior interosseous branch. Ulnar nerve – deep and dorsal branches.
46
what bones are in the distal row of carpal bones?
trapezium, trapezoid, capitate, and hamate.
46
What bones are in the proximal row of carpal bones?
scaphoid, lunate, triquetrum, and pisiform
47
What type of joint is the metacarpophalangeal joint?
condyloid synovial joint (biaxial)
48
What are the articular surfaces of the MCP joint?
metarcapal heads and bases of proximal phalanges
49
What movements can be performed by the MCP joint in thumb ?
flexion-extension adduction -abduction axial rotation
50
What mucles flexes the MCP in thumb in thumb?
flexor pollicis brevis and longus
51
What muscles extends the MCP joints in thumb ?
extensor pollicis brevis and longus
52
what muscle adducts the MCP joints in thumb?
adductor pollicis
53
what muscles abducts the MCP joints in thumb ?
abductor pollicis longus & brevis
54
what muscles rotates the MCP joints in thumb ?
simultaneous contraction of the flexor pollicis brevis and abductor pollicis brevis.
55
What movements in the MCP joints od 2-5th digits?
flexion-extension adduction-abduction
56
What muscle performs flexion in 2-5th digits ?
flexor digitorum superficialis& profundus, lumbricals, flexor digiti minimi (5th digit).
57
What muscle performs extension in 2-5th digits ?
extensor digitorum, extensor indicis (2nd digit), and extensor digiti minimi (5th digit).
58
What muscle performs adduction in 2-5th digits ?
palmar interossei muscles
59
What muscle performs abduction in 2-5th digits ?
dorsal interossei muscles. -Abduction of the fifth digit is also produced by the abductor digiti minimi.
60
Which nerve innervates the MCP joints?
posterior interosseus nerve ; branch of the radial nerve deep terminal branches of ulnar nerve palmar branches of median nerve
61
what type of joint is the ITF ?
hinge synovial joint
62
what muscle flexes the ITF joint
flexor digitorum superficialis - primary
63
what muscles extends the ITF joint
extensor digitorum, lumbricals, and interossei muscle
64
what innervates the ITF joint
palmar digital nerve
65
Which supporting structure resists dorsal dislocation of the proximal interphalangeal joint?
volar plate

Anatomy Written (6 decks)

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