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kines 2nd shift > shoulder bones > Flashcards

shoulder bones Flashcards

1
Q

the bones making up the shoulder complex

A

sternum, scapula, clavicle, humerus (proximal to midpart)

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2
Q

the true joints of shoulder complex

A
  • sternoclavicular joint (sc jt)
  • acromioclavicular joint (ac jt)
  • glenohumeral joint (gh jt)
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3
Q

false/functional joints of shoulder complex

A
  • scapulothoracic joint (st jt)
  • subacromial/suprahumeral joint
  • bicipital/intertubercular sulcus
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4
Q

muscles of the shoulder concept (divisions muna)

A
  • muscles connecting UE to thoracic wall
  • muscles connecting UE to vertebral column
  • muscles connecting scapula to humerus
  • muscles of the arm
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5
Q

t shaped vertical bone that forms the anterior portion of the chest wall centrally

A

sternum

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6
Q

forms part of the bony framework of neck and thorax

A

manubrium

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7
Q

pair of oval shaped found at manubrium which articulate w clavicle

A

clavicular facets

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8
Q

located at lateral edge of the manubrium, attachments for first two ribs

A

costal facets

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9
Q

located at the superior aspect of manubrium between clavicular facets

A

jugular notch/suprasternal notch

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10
Q

angle formed between the manubrium and body of sternum (manubriosternal junction)

A

sternal angle/angle of louis

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11
Q

largest part of sternum

A

body of sternum

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12
Q

the articulation that connects the xiphoid process with the body of the sternum

A

xiphisternal joint

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13
Q

most inferior and smallest part of sternum. with it’s tip located at t10

A

xiphoid process

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14
Q

strut or collar bone. the only attachment between trunk and UE. most fractured bone at middle to lateral thirds where the curvature changes)

s shaped bone that lies horizontally in the superior and anterior part of thorax superior to the 1st rib

A

clavicle

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15
Q

medial 2/3 of clavicle; lateral third

A

convex; concave

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16
Q

directed medially and a little downwards and forwards, to articulate with clavicular notch of the manubrium

it is usually irregular and pitted, is quadrangular (sometimes triangular)

A

sternal end of clavicle

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17
Q

broad, flat, lateral end, articulates with acromion of scapula

A

acromial end

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18
Q

roughned oval impression near the inferior surface, near the sternal end; lies on inferior surface

A

impression for costoclavicular ligament

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19
Q

shallow depression found on the middle one third of the inferior surface of the clavicle

A

groove for subclavius muscle

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20
Q

lies on the inferior surface, close to posterior border. attachment of the conoid ligament of the coracoclavicular ligament

A

conoid tubercle

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21
Q

a narrow, roughened strip. runs forward and laterally from the lateral side of conoid tubercle, almost as far as the acromial end

A

trapezoid line

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22
Q

significance if sternal end of clavicle

A

the upper most part is slightly roughened for attachment of interclavicular ligament, sternoclavicular capsule and articular disc

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23
Q

significance of impression for the costoclavicular ligament

A

costoclavicular ligament connects the clavicle to the upper surface of the first rib and its cartilage

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24
Q

significance of groove for subclavius muscle

A

attachment for subclavius muscle

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25
Q

significance of conoid tubercle

A

attachment for conoid part of coracoclavicular ligament

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26
Q

significance of the trapezoid line

A

attachment of trapezoid part of coracoclavicular ligament

27
Q

a large, flat, triangular bone which lies on the posterolateral aspect of chest wall, covering parts of 2nd to 7th ribs

shoulder blade

A

scapula

28
Q

angles of scapula

A

superior, inferior, lateral angle

29
Q

angle located at the junction of the superior and medial border (T2)

A

superior angle

30
Q

angle marked by shallow glenoid cavity

A

lateral angle

31
Q

angle that lies over the 7th rib, or over the 7th intercostals space (T7)

A

inferior angle

32
Q

significance of superior angle of scapula

A

separates the attachments of subscapularis and teres minor and major

33
Q

significance of lateral angle

A

attachment for rhomboids major, minor, levator scapula

34
Q

significance of inferior angle

A

gives origin to the inferior belly of omohyoid

35
Q

this border runs from the inferior angle to the lateral angle of the scapula

A

lateral (axillary) border

36
Q

border approx 2 inches from the spinous process of the thoracic vertebra; extends from the inferior to the superior angle

A

medial border (vertebral)

37
Q

border that is thin, sharp, and shortest. at its anterolateral end, it is separated from the root of the coracoids process by the suprascapular notch

A

superior border

38
Q

slightly concave; tilted upwardly about 5 degrees relative temperature the scapular medial border, which articulates with the humeral head to form GH joint

A

glenoid fossa

39
Q

found at the posterior surface of the scapula, located superior to the spine of scapula

A

supraspinous/supraspinatus fossa

40
Q

found at the posterior surface of the scapula, inferior to the spine of scapula

A

infraspinous fossa

41
Q

shallow convcavity found at the anterior surface of scapula

A

subscapular fossa

42
Q

a less distinct tubercle located superior to glenoid cavity

A

supraglenoid tubercle

43
Q

large triangular tubercle located inferior to glenoid fossa

A

infraglenoid tubercle

44
Q

an anterolateral projection of the spine, arches over gh jointband articulates w clavicle

shoulder’s summit

A

acromion process

45
Q

a hook like structure that projects anterolaterally and is positioned directly inferior to the lateral part of clavicle

A

coracoid process

46
Q

projection on the upper part of the dorsal surface of scapula; corresponds to T3 vetebral level

A

spine of scapula

47
Q

small but distinct, lies immediately medial to the root of coracoid process

A

suprascapular notch

48
Q

the region between the lateral angle of the scapula and the attachment of spine to the posterior surface of scapula

A

spinoglenoid notch

49
Q

the longest at largest bone in the upper limb

A

humerus (prox to midpart)

50
Q

forms less than half of a spheroid, faces medially and superiorly

A

humeral head

51
Q

significance of humeral head

A

articulate w the much smaller glenoid cavity of scapula

52
Q

neck that is very short and is formed by a narrow constriction immediately distal to the head; lies between the head and greater and lesser tubercles, laterally between the head and the shaft more medially

A

anatomical neck of humerus

53
Q

neck that is a constriction in the humerus just distal to tubercles, where the head tapers to the shaft; named bc of fracture often happen here

A

surgical neck

54
Q

significance of surgical neck

A

weaker than proximal regions of the humerus. one of the sites if humeral fracture. axillary nerve can be damaged by fractures of this region

55
Q

large rounded prominent landmark on proximal end of the humerus. lateral in position, has three large smooth facets for mm tendon attachment

A

greater tubercle

56
Q

tubercle that projects anteriorly

A

lesser tubercle

57
Q

significance of greater tubercle

A
  • superior facet: attachment of supraspinatus
  • middle facet: attachment of infraspinatus
  • inferior facet: attachment of teres minor
58
Q

significance of lesser tubercle

A

attachment of subscapularis

59
Q

separates the lesser and greater tubercles and continues inferiorly onto the proximal shaft of the humerus

A

intertubercular groove (bicipital groove/sulcus);

parts: medial lip, lateral lip, floor

60
Q

significance of bicipital sulcus

A

tendon of long head of biceps brachii passes thru this

medial lip: teres major attachment
lateral lip: pecs major attachment
floor: latissimus dorsi

61
Q

continuous inferiorly from the lateral lip of bicipital groove, V shaped, located on the lateral surface of the humerus

A

deltoid tuberosity

62
Q

significance of deltoid tuberosity

A

attachment of deltoid muscle

63
Q

passes diagonally down the humerus and parallel to the sloping posterior margin of deltoid tuberosity process

A

spiral/radial groove

64
Q

significance of radial groove

A

accommodates the radial nerve

kines 2nd shift (8 decks)

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