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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
Q

What are the bones of the elbox joint?

A

humerus
radius
ulna

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26
Q

What are the joints of the elbow joint?

A

proximal radioulnar joint
humeroulnar joint
humeroradial joint

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27
Q

Type , articular facets , movement of proximal radioulnar joint

A

type: pivot synovial joint

articular facets: articular circumference of radius and notch of ulna

movements: supination & pronation

28
Q

Type , articular facets , movement of humeroulnar joint

A

type : pivot joint (axial joint)

articular facet : trochlea of humerus & trochlear notch of ulna

movement: flexion - extension

29
Q

Type , articular facets , movement of humeroradial joint

A

type: ball and socket

articular facets: capitulum of humerus and articular facet of radius

movements it’s multiaxila so

30
Q

What are the ligaments of the elbow joints?

A

-ulnar collateral liagments
-radial collateral ligaments
-annular ligaments of radius

31
Q

what are the accesories of the elbow joint?

A

capsule
sacciform recess

32
Q

What muscles participate in the flexion of the elbow?

A

biceps brachii
brachialis
brachioradialis
pronator teres

B.B.B.P

33
Q

What muscles participate in the extesions of the elbow?

A

anconeus
triceps brachii

34
Q

What muscles participate in the supination of the elbow joint?

A

supinator
biceps brachii
brachioradialis

35
Q

What muscles participate in the pronation of the elbow joint?

A

pronator teres
pronator quadratus
brachioradialis

36
Q

What is the other name of the wrist joint?

A

radiocarpal joint

37
Q

What are the articulating surfaces of the wrist joint?

A

distand end of radius with its articular disc and promixal row of carpal bones (except pisiformis)

38
Q

What are the ligments of the wrist joint

A

palmar and dorsal radiocarpal ligaments
ulnar and radial collateral ligaments

39
Q

what type of joint is the wrist joint?

A

condyloid or elipsoid joint (biaxial joint)

40
Q

What movements can be perfomed by the wrist joint?

A

flexion-extension
adduction-abduction

41
Q

What muscles perform the flexion of wrist joint?

A

flexor carpi radialis
flexor carpi ulnaris
with assistance of flexor digitorum superficialis

42
Q

What muscles perform the extension of wrist joint?

A

extensor carpi radialis longus&brevis
extensor carpi ulnaris
with assitance of extensor digitorum

43
Q

what muscles adducts the wrist joint

A

extensor carpi ulnaris
flexor carpi ulnaris

44
Q

what muscles abducts the wrist joint

A

extensor carpi radialis longus&brevis
abductor pollicis longus
flexor carpi radialis

45
Q

What branches of 3 nerves innervated the wrist?

A

Median nerve – Anterior interosseous branch.

Radial nerve – Posterior interosseous branch.

Ulnar nerve – deep and dorsal branches.

46
Q

what bones are in the distal row of carpal bones?

A

trapezium, trapezoid, capitate, and hamate.

46
Q

What bones are in the proximal row of carpal bones?

A

scaphoid, lunate, triquetrum, and pisiform

47
Q

What type of joint is the metacarpophalangeal joint?

A

condyloid synovial joint (biaxial)

48
Q

What are the articular surfaces of the MCP joint?

A

metarcapal heads and bases of proximal phalanges

49
Q

What movements can be performed by the MCP joint in thumb ?

A

flexion-extension
adduction -abduction
axial rotation

50
Q

What mucles flexes the MCP in thumb in thumb?

A

flexor pollicis brevis and longus

51
Q

What muscles extends the MCP joints in thumb ?

A

extensor pollicis brevis and longus

52
Q

what muscle adducts the MCP joints in thumb?

A

adductor pollicis

53
Q

what muscles abducts the MCP joints in thumb ?

A

abductor pollicis longus & brevis

54
Q

what muscles rotates the MCP joints in thumb ?

A

simultaneous contraction of the flexor pollicis brevis and abductor pollicis brevis.

55
Q

What movements in the MCP joints od 2-5th digits?

A

flexion-extension
adduction-abduction

56
Q

What muscle performs flexion in 2-5th digits ?

A

flexor digitorum superficialis& profundus,
lumbricals,
flexor digiti minimi (5th digit).

57
Q

What muscle performs extension in 2-5th digits ?

A

extensor digitorum, extensor indicis (2nd digit), and
extensor digiti minimi (5th digit).

58
Q

What muscle performs adduction in 2-5th digits ?

A

palmar interossei muscles

59
Q

What muscle performs abduction in 2-5th digits ?

A

dorsal interossei muscles.

-Abduction of the fifth digit is also produced by the abductor digiti minimi.

60
Q

Which nerve innervates the MCP joints?

A

posterior interosseus nerve ; branch of the radial nerve

deep terminal branches of ulnar nerve

palmar branches of median nerve

61
Q

what type of joint is the ITF ?

A

hinge synovial joint

62
Q

what muscle flexes the ITF joint

A

flexor digitorum superficialis - primary

63
Q

what muscles extends the ITF joint

A

extensor digitorum, lumbricals, and interossei muscle

64
Q

what innervates the ITF joint

A

palmar digital nerve

65
Q

Which supporting structure resists dorsal dislocation of the proximal interphalangeal joint?

A

volar plate

Anatomy Written (6 decks)

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