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zFunctional Anatomy > Movement of the shoulder > Flashcards

Movement of the shoulder Flashcards

1
Q

What are the bones of the shoulder girdle?

A

scapula, clavicle, manubrium, sternum, humerus

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2
Q

What are the four joints of the shoulder girdle?

A
  • sternoclaviclar joint
  • acromioclavicular joint
  • glenohumeral joint
  • scapulothoracic joint
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3
Q

Sternoclavicular joint

A
  • saddle joint

- flexion and extension, abduction and adduction, some rotation

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4
Q

Acromioclavicular joint

A
  • plane
  • gliding, small amounts of movement, stable
  • keeps relationship between clavicle and scapula in elevation of UL
  • prevents anterior displacement of clavicle
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5
Q

Glenohumeral joint

A
  • ball and socket
  • most mobile, therefore unstable (shallow)
  • keeps bicep in place
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6
Q

Scapulohumeral rhythm

A

combination of movements in the joints of the shoulder girdle

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7
Q

What are the anterior axio-appendicular muscles of the upper limb?

A
  • pectoralis major
  • pectoralis minor
  • subclavius
  • serratus anterior
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8
Q

What are the posterior axio-appendicular muscles of the upper limb?

A
  • trapezius
  • levator scapulae
  • rhomboids minor
  • rhomboids major
  • lattissumis dorsi
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9
Q

What are the scapulohumeral muscles of the upper limb?

A
  • deltoid
  • supraspinatus
  • infraspinatus
  • teres minor
  • teres major
  • subscapularis
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10
Q

What are the rotator cuff muscles?

A
  • supraspinatus
  • infraspinatus
  • teres minor
  • subscapularis
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11
Q

Pectoralis major

A

P: Clavicular head: medial 1/2 of clavicle. Sternal head: anterior surface of sternum and superior 6 costal cartilages
D: lateral lip of intertubecular sulcus of humerus
Action: adduction and internal rotation of humerus. Clavicular: flexes humerus. Sternal: extends humerus from flexed
Innervation: lateral and medial pectoral nerve

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12
Q

Pectoralis minor

A

P: anterior surface of 3rd-5th ribs near costal cartilages
D: coracoid process
Action: draws scapula anteriorly and inferiorly against thorax, stabilises scapula

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13
Q

Serratus anterior

A

P: external lateral surface of ribs 1-8
D: anterior surface of medial border of scapula
Action: protracts (punching movement) and upwardly rotates scapula; stabilsies scapula against thoracic wall
Innervation: long thoracic nerve

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14
Q

Trapezius

A

P: superior nuchal line, occipital protuberance, nuchal ligament, spinous process C7-T12
D: spine of scpaula, lateral 1/3 clavicle
Action: moves scapular. Descending (superior): elevation and upward rotation. Middle: retraction. Ascending (inferior): depress, rotate
Innervation: accessory nerve

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15
Q

Latissimus dorsi

A

P: spinous process T6-T12, thoracolumbar fascia (TLF), inferior 3.4 ribs, iliac crest
D: floor of intertubecular sulcus of humerus
Action: adduction, extension, internal rotation of GHJ
Innervation: thoracodorsal nerve

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16
Q

Levator scapulae

A

P: transverse processes C1-4
D: superior angle, medial border, base (root) of spine of scapula
Action: elevate scapula, side flexion of neck, control scapula in UL movement
Innervation: dorsal scapular nerve

17
Q

Rhomboid minor

A

P: spinous processes C7-T1, nuchal ligament
D: medial border on base of spine of scapula
Action: retract and rotate scapula, fix scapula to throacic wall
Innervation: dorsal scapular nerve

18
Q

Rhomboid major

A

P: spinous processes T2-5
D: medial border of scapula from spine to inferior angle
Action: retract and rotate scapula, fix scapula to thoracic wall
Innervation: dorsal scapular nerve

19
Q

Deltoid

A

P: lateral 1/3 clavicle (anterior), acromion (middle), scapular spine (posterior)
D: deltoid tuberosity of humerus
Action: abduction, flexion, extension, of GHJ
Innervation: axillary nerve

20
Q

Supraspinatus

A

P: supraspinatous fossa
D: greater tubercle of humerus (superior)
Action: initiates and assists abduction in GHJ, stabilsies head of humerus in glenoid fossa
Innervation: suprascapular nerve

21
Q

Infraspinatus

A

P: infraspinous fossa
D: greater tubercle of humerus (middle)
Action: external rotation of GHJ, stabilises head of humerus in glenoid fossa
Innervation: suprascapular nerve

22
Q

Teres minor

A

PL middle part of lateral border of scapula
D: greater tubercle of humerus (inferior)
Action: external rotationof GHJ, stabilises head of humerus in glenoid fossa
Innervation: axillary nerve

23
Q

Subscapularis

A

P: subscapular fossa
D: lesser tubercle of humerus
Action: medial rotation of GHJ, stabilise head of humerus in glenoid fossa
Innervation: lower subscapular nerve

24
Q

Teres major

A

P: posterior surface of inferior angle of scapula
D: medial life of intertubecular sulcus of humerus
Action: adduction and medial rotation of GHJ
Innervation: lower subscapular nerve

zFunctional Anatomy (10 decks)

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