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Anatomy I- Erin > Shoulder > Flashcards

Shoulder Flashcards

1
Q

What are the different types of fibrous joints?

A
  • sutures
  • syndesmoses
  • gomphoses
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2
Q

What are the different types of cartilaginous joints?

A
  • symphyses

- synchondroses

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3
Q

Characteristics of synovial joints.

A 
-joint capsule 
   \+inner synovial membrane
   \+outer fibrous capsule
-hyaline cartilage
-articular disc
-very mobile
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4
Q

What does synarthrosis, amphiarthrosis, and diarthrosis mean?

A
  • synarthrosis: no movement
  • amphiarthrosis: little movement
  • diarthrosis: a lot of movement
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5
Q

What are the different movements at synovial joints?

A
  • nonaxial: no axis of movement
  • uniaxial
  • biaxial
  • multiaxial
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6
Q

What are the different joints of the arm?

A
  • acromioclavicular
  • glenohumeral
  • humeroulnar (elbow)
  • radioulnar (proximal and distal)
  • sternoclavicular
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7
Q

Movements of acromioclavicular joint

A
  • diarthrotic

- gliding and rotation of scapula on clavicle

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8
Q

Movements of glenohumeral joint

A
  • diarthrotic
  • multiaxial
  • flexion, extension, abdustion, adduction, circumduction, rotation
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9
Q

Movements of humeroulnar joint

A
  • diarthotic
  • uniaxial
  • flexion, extension
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10
Q

Movement of proximal radioulnar joint

A
  • diarthrotic
  • uniaxial
  • pronation and supination
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11
Q

Movement of distal radioulnar joint

A
  • diarthrotic
  • uniaxial
  • rotation
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12
Q

Movement of sternoclavicular joint

A
  • diarthrotic

- multiaxial

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13
Q

What are the general groups of shoulder muscles?

A
  • axioappendicular

- scapulohumeral

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14
Q

What is the labrum?

A

-rim of cartilage to which the capsule attaches

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15
Q

What are the different bursa in the shoulder?

A
  • subacromial
  • subdeltoid
  • subcoracoid
  • subscapular

*communicate with each other, but not the synovial cavity

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16
Q

What is impingement syndrome?

A
  • tendonitis of supraspinatus tendon
  • bursitis of subacromial
  • essentially inflamed whatever restricts shoulder
17
Q

What the rotator cuff muscles?

A
  • subscapularis
  • supraspinatus
  • infraspinatus
  • teres minor
18
Q

Origin, insertion, action, and innervation of DELTOID

A

origin: lateral 1/3 of clavicle, acromion and spine of scapula
insertion: deltoid tuberosity
actions: flexes, medially rotates, abducts, extends, and laterally rotates
innervation: axillary nerve

19
Q

Origin, insertion, action, and innervation of TERES MAJOR

A

origin: post. surface of inferior angle of scapula
insertion: medial lip of intertubercular groove
actions: adducts and medially rotates humerus
innervation: lower subscapular nerve

20
Q

Origin, insertion, action, and innervation of SUPRASPINATUS

A

origin: supraspinous fossa of scapula
insertion: sup. facet of greater tubercle
actions: works with deltoid in abduction, stabilizes shoulder
innervation: suprascapular

21
Q

Origin, insertion, action, and innervation of SUBSCAPULARIS

A

origin: subscapular fossa
insertion: lesser tubercle of humerus
actions: medially rotates and adducts humerus, stability
innervation: upper and lower subscapular nerve
- largest rotator cuff muscle (tears are rare)

22
Q

How can the subscapularis contribute to rotator cuff tendonitis?

A
  • common sports injury

- subscapularis injuries can lead to bicipital tendon instability and biceps tendonitis

23
Q

Origin, insertion, action, and innervation of INFRASPINATUS

A

origin: infraspinous fossa
insertion: middle facet of greater tubercle
actions: laterally rotates humerus, stability
innervation: suprascapular nerve

24
Q

Origin, insertion, action, and innervation of TERES MINOR

A

origin: middle part of lateral border of scapula
insertion: inferior facet of greater tubercle
actions: laterally rotates humerus, stability
innervation: axillary nerve

25
Q

What can cause rotator cuff injuries?

A
  • repetitive overhead activities
  • bone spurs
  • abnormally shaped acromion
26
Q

What nerve and artery can be found in the quadrangular space?

A
  • axillary nerve

- post. circumflex humeral artery

27
Q

What can be found in the triangular space and triangular interval?

A

space: circumflex scapular artery
interval: deep brachial artery and radial nerve

28
Q

What are the two solid joint classifications?

A

fibrous and cartilagenous

Anatomy I- Erin (11 decks)

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