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Kinesiology > Chapter 10 (Shoulder Joint) > Flashcards

Chapter 10 (Shoulder Joint) Flashcards

1
Q

Describe the shoulder joint.

A
  • Ball-and-socket
  • Most movable but least stable
  • Moves in all 3 planes
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2
Q

What are joint motions in the sagittal plane?

A

Flexion, extension, hyperextension

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3
Q

What are joint motions in the frontal plane?

A

Abduction, Adduction

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4
Q

What are joint motions in the tranverse plane?

A
  • External + Internal rotation

- Horizontal abduction + adduction

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5
Q

Name some scapular landmarks.

A
  • Gleniod fossa - Subscapulae fossa
  • Infraspinous fossa - Supraspinous fossa
  • Axillary border - Labrum
  • Acromion Process - Vertebral border
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6
Q

Describe gleniod fossa

A

Shallow, egg shape

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7
Q

Provides attachment for the subscapularis

A

Subscapulae Fossa

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8
Q

Describe the infraspinous fossa

A

Above the spine, infrapinous attachment

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9
Q

Sits above spine of fossa, supraspinous attachment.

A

Supraspinous Fossa

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10
Q

Provieds attachment for the teres major and minor

A

Axillary border

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11
Q

Fibrocartilage ring that helps deepen the socket to give the head of the humerus more room

A

Labrum

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12
Q

Provides attachment for the middle deltoid

A

Acromion attachment

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13
Q

What are the landmarks of the humerus?

A
  1. Head 2. Neck (2 types)
  2. Shaft 4. Greater + Lesser tubercles
  3. Deltiod Tuberosity 6. Bicipital groove
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14
Q

This deepens the articular cartilage, surrounds the gleniod fossa

A

Labrum

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15
Q

How many rotator cuffs are there and what do they do?

A
  • 4

- help keep the head of humerus “rotating” against the glenoid fossa during joint motion

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16
Q

What is thoracolumbar fascia?

A

Superficial fibrous tissue sheet which provides attachment for latissimus dorsi

17
Q

What helps give shoulder some stability?

A

Ligaments, joint capsule, rotator cuff muscles, shoulder muscles

18
Q

What is sublaxation?

A
  • Joint comes out of place.
  • Humerus comes out of joint socket.
  • Due to paralysis and muscle weakness and loss of tone, lack of socket depth.
  • Humerus need to be put back into joint before proceeding with ROM
19
Q

What are the muscles of the shoulder joint?

A
  • deltoid -supraspinatus
  • Pectoralis major -latissimus dorsi
  • teres major -teres minor
  • infraspinatus -subscapularis
  • coracobrachialis -bicep brachi
  • triceps brachi
20
Q

What are the 4 rotator cuff muscles?

A
  1. Supraspinatus
  2. Infraspinatus
  3. Teres minor
  4. Subscapularis
21
Q

What is the origin and insertion of the deltiod?

A 
I= humerus 
O= Clavicle
22
Q

What are the actions of the deltiod?

A 
Anterior= Flexion horizontal abd. + adduction 
Middle= Abduction
Posterior = Extension, Lateral rotation, horizontal abd. + adduction
23
Q

What is the origin, insertion and action of the supraspinatus? (hint: rotator cuff)

A 
O= scapula 
I= Insertion 
A= Shoulder abduction
24
Q

What is the origin, insertion and action of the pectoralis major?

A 
O= sternum/ some ribs
I= humerus 
A= horizontal adduction, adduction, IR
25
Q

What is the origin, insertion and action of the latissimus dorsi?

A 
O= spine 
I= humerus 
A= Extension, adduction, internal rotation, hyperextension
26
Q

What is the origin, insertion and action of the teres major?

A 
O= scapula 
I= humerus 
A= Extension, adduction, IR
27
Q

What is the origin, insertion and action of the infraspinatus? (hint: rotator cuff)

A 
O= scapula 
I= Humerus 
A= Shouler ER, horizontal abduction
28
Q

What is the origin, insertion and action of the teres MINOR?

A 
O= scapula 
I= humerus 
A= Shoulder ER, Horizontal abduction
29
Q

What is the origin, insertion and action of the subscapularis? (hint: rotator cuff)

A 
O= scapula 
I= humerus 
A= Shoulder IR
30
Q

What is the origin, insertion and action of the coracobrachialis?

A 
O= scapula 
I= humerus 
A= stabilizer (very small moment arm)
31
Q

What muscles are involved with Flexion?

A

Anterior deltiod and pectoralis major

32
Q

What muscles are involved with extension?

A
  • Posterior deltiod -Latissimus dorsi

- Teres major - Pectoralis major

33
Q

What muscles are involved with hyperextension?

A

Latissimus dorsi and Posterior deltiod

34
Q

What muscles are involved with abduction?

A

Deltiod and supraspinatus

35
Q

What muscles are involved with adduction?

A
  • Pectoralis major
  • Teres major
  • Latissimus dorsi
36
Q

What muscles are involved with horizontal abduction?

A
  • Posterior deltoid
  • infraspinatus
  • Teres minor
37
Q

What muscles are involved with horizontal adduction?

A

Pectoralis major and anterior deltoid

38
Q

What muscles are involved with lateral rotation?

A
  • Infraspinatus
  • Teres minor
  • Posterior deltoid
39
Q

What muscles are involved with medial rotation?

A
  • Latissimus dorsi - Pectoralis major
  • Teres minor - Anterior deltiod
  • Subscapularis

Kinesiology (10 decks)

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