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MSK > Ch 3 Upper Extremity A&P > Flashcards

Ch 3 Upper Extremity A&P Flashcards

1
Q

Number of cervical vertebrae

A

7

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2
Q

Number of thoracic vertebrae

A

12

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3
Q

Number of lumbar vertebrae

A

5

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4
Q

Number of sacrum vertebrae

A

5

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5
Q

Number of coccyx vertebrae

A

4

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6
Q

Lordotic curves

A

Cervical & Lumbar curves

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7
Q

Kyphotic curves

A

Thoracic and Sacral curves

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8
Q

Vertebrae anatomy includes:

A

Body

Vertebral arch

Processes extending from the arch

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9
Q

Vertebrae that have facets for rib articulation

A

Thoracic

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10
Q

Largest, strongest vertebrae

Spinous processes are short, thick

A

Lumbar

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11
Q

Vertebrae foundation for pelvic girdle

Contain sacral foramina for nerves and blood vessels

A

Sacrum

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12
Q

True ribs

A

1-7

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13
Q

False ribs

A

8-10

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14
Q

Floating ribs

A

11-12

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15
Q

False ribs articulate with the sternum via:

A

Cartilage of Rib 7

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16
Q

Only bony connection for arms and upper torso

A

Clavicle

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17
Q

Clavicle articulates with _____ medially

Articulates with ______ laterally

A

Sternum

Acromion

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18
Q

Part of the scapula that forms the tip of the shoulder

Extends anteriorly and superiorly over the humeral head

A

Acromion process

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19
Q

Scapula

Provides attachment site for muscles and ligaments

A

Coracoid process

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20
Q

Anatomy of the ligaments of the pectoral girdle

A

Acromioclavicular ligament

Coracoclavicular ligament

Coracoacromial ligament

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21
Q

The labrum consists of:

A

Glenoid cavity

Glenoid labrum

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22
Q

Shallow cavity, allowing only 25% of the humeral head to make contact

Articulates with the head of the humerus to form the shoulder joint

A

Glenoid Cavity

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23
Q

Forms a ring around the glenoid cavity

Deepens the glenoid and provides more stability to the joint

A

Glenoid labrum

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24
Q

Muscles of the rotator cuff

A

Supraspinatus

Infraspinatus

Teres minor

Subscapularis

25
Q

Assists deltoid in abduction of the humerus at the shoulder

A

Supraspinatus

26
Q

External rotation of the humerus at the shoulder joint

A

Infraspinatus

27
Q

Assists adduction and rotation of the arm laterally

Extends arm at shoulder and rotation of the arm externally

A

Teres minor

28
Q

Internal rotation of the arm at the shoulder

A

Subscapularis

29
Q

Abducts, flexes, extends, and rotates arm at the shoulder joint

A

Deltoid

30
Q

Mutiple fibers in this large muscle move the scapula multi-directionally

A

Trapezius

31
Q

Elevates scapula and rotates downward

A

Levator Scapula

32
Q

Elevates and adducts scapula and rotates downward

Stabilizes scapula

A

Rhomboid major

33
Q

Adducts and rotates arm medially at the shoulder

Flexes arm at the shoulder joint

A

Pectoralis major

34
Q

Extends, adducts, and rotates arm medially at the shoulder joint

Draws arm downward and backward

A

Latissimus dorsi

35
Q

Extends arm at the shoulder joint

Assists with adduction and rotation of arm medially

A

Teres major

36
Q

Flexes and adducts arm at shoulder

A

Coracobrachialis

37
Q

Bones of the elbow

A

Humerus

Radius

Ulna

38
Q

Proximal aspect of the ulna

Medical term for elbow

A

Olecranon

39
Q

Elbow is a ____ joint

A

Hinge

40
Q

ONLY occurs at the elbow

A

Pronation

Supination

41
Q

Occurs between radius and ulna in a specialized joint

A

Supination & Pronation

42
Q

Flexes arm at the shoulder

Flexes and supinates forearm at the elbow

A

Biceps Brachii

43
Q

Flexes forearm at the elbow joint

A

Brachialis

&

Brachioradialis

44
Q

Extends forearm at the elbow joint

Extends arm at shoulder

A

Triceps brachii

45
Q

Supinates forearm

A

Supinator

46
Q

Pronates forearm

A

Pronator teres

47
Q

Bones of the hand

A 
Scaphoid
Lunates
Triquetrum
Pisiform
Trapezium
Trapezoid
Capitate
Hamate 
Metacarpals
Phalanges
48
Q

Metacarpals are composed of:

A

Base

Body

Head

49
Q

Flexes and abducts hand at the wrist

A

Flexor carpi radialis

50
Q

Flexes and adducts hand at the wrist

A

Flexor carpi ulnaris

51
Q

Weakly flexes hand at the wrist joint

A

Palmaris

52
Q

Flexes hand at wrist

Flexes phalanges at each finger at the PIP joint

A

Flexor digitorum superficialis

53
Q

Flexes hand at wrist

Flexes phalanges of each finger at DIP

A

Flexor digitorum profundus

54
Q

Extends and abducts hand at the wrist joint

A

Extensor carpi radialis longus

55
Q

Extends and adducts hand at the wrist joint

A

Extensor carpi ulnaris

56
Q

Extends hand at wrist joint

Extends phalanges of each finger

A

Extensor digitorum

57
Q

Motor supply to most of the intrinsic hand muscles

Sensation to little finger and 1/2 of ring finger

A

Ulnar nerve

58
Q

Palmar and dorsal aspect of first 3 and 1/2 fingers

A

Median nerve

59
Q

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

A

Radial nerve

MSK (14 decks)

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