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MSK > Upper extremity A&P > Flashcards

Upper extremity A&P Flashcards

1
Q

Sections of the vertebral column and how many vertebrae

A

Cervical (7)
Thoracic (12)
Lumbar (5)
Coccyx (4 fused)

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2
Q

What are the normal curves of the spine?

A

Lordotic: Cervical and lumbar vertebrae
Kyphotic: Thoracic and Sacral

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3
Q

Bones of the thorax

A

Sternum
-manubrium
- body
- xyphoid process

Ribs

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4
Q

What are the ribs 1-7 called?

A

True ribs: costal cartilage occurs directly with the sternum

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5
Q

What are ribs 8-10 called?

A

False ribs: articulate with the sternum bi cartilage of rib 7

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6
Q

What are ribs 11-12 called?

A

Floating ribs: do not articulate with the sternum at all

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7
Q

What are the bones of the pectoral girdle?

A

Clavicle
Scapula
Acromion
Coracoid

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8
Q

What are the ligaments of the pectoral girdle?

A

Acromioclavicular ligament
Coracoclavicular ligament
Coracoacromial ligament

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9
Q

What is the glenoid cavity?

A

Shallow cavity, allowing 25% of the humeral head to make contact
Articulates with head of humerus to form shoulder joint

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10
Q

What is the glenoid labrum?

A

-Forms a ring around shallow cavity
-Deepens the glenoid and provides more stability to the joint

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11
Q

What are the muscles that make up the rotator cuff?

A

“SITS”
Supraspinatus
Infraspinatus
Teres Minor
Subscapularis

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12
Q

What is the action of each of the rotator cuff muscles?

A

Supraspinatus: assists deltoid in abduction of humerus
Infraspinatus: external rotation of the humerus at shoulder joint
Teres Minor: extends arm at shoulder and rotation of the arm externally
Subscapularis: internal rotation of the arm at the shoulder

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13
Q

Actions of the deltoid

A

Abducts, flexes and rotates arm at shoulder joint

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14
Q

What muscle move the scapula multi-directionally

A

Trapzeius

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15
Q

Actions of the levator scapula

A

Elevates and adducts the scapula and rotates downward

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16
Q

Actions of the rhomboid major

A

Elevates and adducts scapula and rotates downward, stabilizes scapula

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17
Q

Actions of the pectoralis major

A

-Adducts and rotates arm medially at the shoulder
-Flexes arm at the shoulder joint

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18
Q

Action of the latissimus dorsi

A

-Extends, adducts and rotates arm medially at the shoulder joint
-Draws arm downward and backward

19
Q

Action of the teres major

A

-Extend arm at the shoulder joint
-Assist with adduction and rotation of arm medially

20
Q

Action of the coracobrachialis

A

Flexes and adducts arm at shoulder

21
Q

Bones of the elbow

A

Humerus
Radius
Ulna

22
Q

What is the olecranon?

A

Proximal aspect of ulna, medical term for elbow

23
Q

What protects the olecranon?

A

Olecranon bursa

24
Q

What is pronation and supination? Supination and pronation only occur at where?

A

Supination: palm up
Pronation: palm down
Only occurs at elbow

25
Q

Actions of the biceps brachii

A

Flexes arms at the shoulder
Flexes and supinates forearm at the elbow

26
Q

Actions of the brachialis

A

Flexes forearm at elbow joint

27
Q

What Flexes forearm at the elbow joint

A

brachioradialis

28
Q

Which muscle Extends forearm at the elbow joint

A

triceps brachii

29
Q

Actions of the supinator

A

Supinates forearm

30
Q

Actions of the pronator teres

A

Pronates forearm

31
Q

Names of carpals

A

Scaphoid
Lunate
Triquetrium
Pisiform
Trapezium
Trapezoid
Capitate
Hamate

32
Q

What are the parts of the metacarpals?

A

Base, body, head

33
Q

How are the phalanges numbered?

A

1-5 starting laterally

34
Q

Actions of carpi radialis

A

Flexes and abducts hand at the wrist

35
Q

Actions of flexor carpi ulnaris

A

Flexes and adducts hand at the wrist

36
Q

Actions of palmaris

A

Weakly flexes hand at the wrist

37
Q

Action of flexor digitorum superficialis

A

Flexes hand at wrist
Flexes phalanges of each finger at the PIP joint

38
Q

Action of flexor digitorum profundus

A

Flexes hand at wrist
Flex phalange of each finger at the PIP joint

39
Q

Action of extensor carpi radialis longus

A

Extends and abducts hand at the wrist joint

40
Q

Action of extensor carpi ulnaris

A

Extends and adducts hand at the wrist joint

41
Q

Action of extensor digitorum

A

Extends and adducts hand at the wrist joint

42
Q

The ulnar nerve provides sensation to which fingers?

A

Sensation to the little finger and one-half of the ring finger

43
Q

The median nerve provides sensation to which fingers

A

Palmar and dorsal aspect of first 3 and ½ finger

44
Q

Which nerve provides sensation for Dorsum of the hand and lateral first 3 fingers and one half of fourth finger

A

Radial nerve

MSK (9 decks)

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