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1 Upper limb anatomy > 2 The Scapula > Flashcards

2 The Scapula Flashcards

1
Q

What is the scapula commonly known as?

A

The shoulder blade

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2
Q

What does scapula articulate with?

A

The humerus
The clavicle

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3
Q

What is the joint between the scapula and humerus?

A

Glenohumeral joint

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4
Q

What is the joint between the sacpula and clavicle?

A

Acromioclavicular joint

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5
Q

What is the shape of the scapula?

A

Triangular flat bone

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6
Q

How many muscles attach to the scapula?

A

17

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7
Q

What is the anterior surface of the scapula called?

A

Costal surface (as faces towards the ribs)

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8
Q

What is the concave depression on the costal surface?

A

The subscapular fossa

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9
Q

Which rotator cuff originates from the subscapular fossa?

A

Subscapularis

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10
Q

Where is the coracoid process?

A

Superior-lateral costal surface
It lies just underneath the clavicle

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11
Q

Which muscles are attacheted to/originate from the coracoid process?

A

Pectoralis major - attach
Coracobrachialis - originate
Biceps brachii - originate

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12
Q

What does lateral border of scapula face?

A

Humerus

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13
Q

What is the name of the cavity where the glenohumeral joint is?

A

Glenoid fossa

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14
Q

What is the name of the tubercle directly above the glenoid fossa?

A

Supraglenoid tubercle

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15
Q

What is the name of the tubercle directly below the glenoid fossa?

A

Infragelnoid tubercle

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16
Q

What is attached to posterior surface of scapula?

A

SIT(notS) of rotator cuff muscles

17
Q

What attaches to infraglenoid tubercle?

A

Long head of biceps brachii

18
Q

What is the most prominent feature on posterior surface of scapula?

A

The spine

19
Q

What are the two divisions of posterior surface of scapula?

A

Divided by the spine both convex
Above: supraspinous fossa
Below: infraspinous fossa (larger)

20
Q

What muscle originates from supraspinous fossa?

A

Supraspinatus

21
Q

What muscle originates from infraspinous fossa?

A

Infraspinatus

22
Q

What is the projection off the spine of the scapula?

A

Acromion

23
Q

What does acromion articulate with and arch over?

A

Articulates with clavicle -acromioclavicular joint
Arches over the glenohumeral joint

24
Q

What type of joint is acromioclavicular joint?

A

Synovial gliding/plane

25
Q

What type of joint is sternoclavicular joint?

A

Synovial saddle

1 Upper limb anatomy (13 decks)

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