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MSK > STRUCTURAL AND FUNCTIONAL ORGANIZATION OF THE UPPER EXTREMITY MUSCULOSKELETAL SYSTEM > Flashcards

STRUCTURAL AND FUNCTIONAL ORGANIZATION OF THE UPPER EXTREMITY MUSCULOSKELETAL SYSTEM Flashcards

1
Q

NAME the regions of the vertebral column.

A

-Cervical: 7 vertebrae
-Thoracic: 12 vertebrae
-Lumbar: 5 vertebrae
-Coccyx: 4 fused Vertebrae

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2
Q

What region of the spine is Lordotic?

A

cervical and lumbar

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3
Q

What region of the spine is Kyphotic?

A

thoracic and sacral

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4
Q

NAME the 3 bones of the thorax

A

1 Manubrium
2 Body
3 Xyphoid process

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5
Q

R1-R7
R8-R10
R11- R12

A

1 true ribs
2 false ribs
3 floating ribs

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6
Q

NAME the 2 bones of the pectoral girdle

A

1 Clavicle
2 Scapula

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7
Q

Name the 3 ligaments of the pectoral girdle.

A

-Acromioclavicular
-Coracoclavicular
-Coracoacromial

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8
Q

DESCRIBE the function and anatomy of the labrum.

A

Deepens the glenoid and provides more stability to the joint

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9
Q

What are the muscles of the rotator cuff (SITS muscles)?

A

-Supraspinatus
-Infraspinatus
-Teres minor
-Subscapularis

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10
Q

Assists deltoid in abduction of the humerous at the shoulder

A

Supraspinatus

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11
Q

What muscle in the rotator cuff?
-External rotation of the humerus at the shoulder joint

A

Infraspinatus

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12
Q

What muscle in the rotator cuff?
-Extends arm at shoulder and rotation of the arm externally

A

Teres minor

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13
Q

What muscle in the rotator cuff?
-Internal rotation of the arm at the shoulder.

A

Subscapularis

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14
Q

What muscle?
-Abducts, flexes, and rotates arm at shoulder joint

A

Deltoid

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15
Q

NAME the bones of the elbow.

A

-Humerus
-Radius
-Ulna

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16
Q

NAME the 2 bones of the pectoral girdle?

A

1 Clavicle
2 Scapula

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17
Q

What articulates with the clavicle medially?

A

sternum

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18
Q

What articulates with the clavicle laterally?

A

acromion

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19
Q

What are the 4 parts of the scapula?

A

1 Spine
2 Body (vertebral/axillary)
3 Acromion
4 Coracoid

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20
Q

What are the 3 ligaments of the pectoral girdle?

A

1 Acromioclavicular
2 Coracoclavicular
3 Coracoacromial

21
Q

What articulates with the head of the humerus to form the shoulder joint?

A

glenoid cavity

22
Q

What deepens the glenoid and provides stability to the joint?

A

glenoid labrum

23
Q

What muscle of the rotator cuff assists deltoid in abduction of the humerus at the shoulder?

A

Supraspinatus

24
Q

What muscle of the rotator cuff assists with external rotation of the humerus at the shoulder joint?

A

Infraspinatus

25
Q

What muscle of the rotator cuff extends the arm at the shoulder and rotates the arm externally?

A

Teres Minor

26
Q

What muscle of the rotator cuff assists with internal rotation of the arm at the shoulder?

A

Subscapularis

27
Q

What muscle:
abducts, flexes, and rotates arm at shoulder joint?

A

Deltoid

28
Q

What muscle:
Multiple fibers in this large muscle move the scapula multi-directionally?

A

Trapezius

29
Q

What muscle:
Elevates scapula and rotates downward?

A

Levator scapula

30
Q

What muscle:
-Elevates and adducts scapula and rotates downward
-Stabilizes scapula

A

Rhomboid major

31
Q

What muscle:
-Adducts and rotates arm medially at the shoulder
-Flexes arm at the shoulder joint

A

Pectoralis major

32
Q

What muscle:
-Extends, adducts, and rotates arm medially at the shoulder joint
-Draws arm downward and backward?

A

Latissimus dorsi

33
Q

What muscle:
-Extends arm at the shoulder joint
-Assists with adduction and rotation of arm laterally?

A

Teres major

34
Q

What muscle:
Flexes and adducts arm at shoulder?

A

Coracobrachialis

35
Q

NAME the 3 bones of the elbow

A

1 Humerus
2 Radius
3 Ulna

36
Q

What muscle?
(1) Flexes arm at the shoulder
(2) Flexes and supinates forearm at the elbow

A

Biceps Brachii

37
Q

What muscle?
Flexes forearm at the elbow joint

A

Brachialis

38
Q

What muscle?
Flexes forearm at the elbow joint

A

Brachioradialis

39
Q

What muscle?
(1) Extends forearm at the elbow joint
(2) Extends arm at shoulder

A

Triceps brachii

40
Q

NAME the 8 bones of the hand?

A

(1) Scaphoid
(2) Lunate
(3) Triquetrium
(4) Pisiform
(5) Trapezium
(6) Trapezoid
(7) Capitate
(8) Hamate

41
Q

What muscle of the wrist?
-Flexes and abducts hand at the wrist?

A

Flexor carpi radialis & ulnaris

42
Q

What muscle of the wrist?
-Weakly flexes hand at the wrist joint

A

Palmaris

43
Q

What muscle of the wrist?
-Flexes phalanges at the PIP

A

Flexor digitorum superficialis

44
Q

What muscle of the wrist?
-Extends and abducts hand at the wrist?

A

Extensor carpi radialis longus & ulnaris

45
Q

What muscle of the wrist?
-Flexes phalanges at the DIP

A

Flexor digitorum profundus

46
Q

Sensation to little finger and ½ of ring finger

A

Ulnar nerve

47
Q

Palmar and dorsal aspect of first 3 and ½ fingers

A

Median nerve

48
Q

Dorsum of the hand and lateral first three fingers and one half of fourth finger

A

Radial nerve

MSK (10 decks)

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