STRUCTURAL AND FUNCTIONAL ORGANIZATION OF THE UPPER EXTREMITY MUSCULOSKELETAL SYSTEM Flashcards

1
Q

How many vertebrae are in the Cervical spine

A

7

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2
Q

How many vertebrae are in the Thoracic spine

A

12

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3
Q

How many vertebrae are in the lumbar spine

A

5

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4
Q

How many vertebrae are in the coccyx

A

4

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5
Q

What regions of the spine have Kyphotic curves

A

Thoracic and sacral

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6
Q

What regions of the spine have Lordotic curves

A

Cercial and thoracic

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7
Q

What spinal region
Have facets for rib articulation

A

Thoracic vertebrae

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8
Q

What region of he spine
-Largest, strongest
-Spinous processes are short, thick

A

Lumbar

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9
Q

What region of the spine?
-fused into one unit
-Foundation for pelvic girdle
-Contain sacral foramina for nerves and blood vessels

A

Sacrum

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10
Q

what are the different parts of the sternum

A

(1) Manubrium
(2) Body
(3) Xyphoid process

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11
Q
  1. ______ are true ribs
  2. ______ are false ribs
  3. ______ are floating ribs
A

(1) R1-R7
(2) R8-R10
(3) R11- R12

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12
Q

What bone?
(1) Articulates with sternum medially
(2) Articulates with acromion laterally
(3) The “strut” between the scapula and sternum

A

Clavicle

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13
Q

Part of the scapula that forms the “tip of the shoulder”
-Extends anteriorly and superiorly over the humeral head

A

Acromion

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14
Q

What part of the scapula
Provides attachment site for muscles and ligaments

A

Coracoid

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15
Q

The _______ cavity is shallow, allowing only about 25% of humeral head to make contact

A

glenoid

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16
Q

The _______ forms a ring around the glenoid cavity
(1) Deepens the glenoid and provides more stability to the joint

A

glenoid labrum

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17
Q

The muscles of the rotator cuff are the SITS muscles, what are they

A

supraspinatus,
infraspinatus,
teres minor,
subscapularis

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18
Q

What muscle?
Assists deltoid in abduction of the humerous at the shoulder

A

Supraspinatus

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19
Q

What muscle?
External rotation of the humerus at the shoulder joint

A

Infraspinatus

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20
Q

What muscle?
External rotation of the humerus at the shoulder joint

A

Infraspinatus

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21
Q

What muscle?
Extends arm at shoulder and rotation of the arm externally

A

Teres minor

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22
Q

What muscle?
Internal rotation of the arm at the shoulder

A

Subscapularis

23
Q

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

A

Deltoid

24
Q

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

A

Trapezius

25
Q

What muscle?
Elevates scapula and rotates downward

A

Levator scapula

26
Q

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

A

Rhomboid major

27
Q

What muscle?
(a) Adducts and rotates arm medially at the shoulder
(b) Flexes arm at the shoulder joint

A

Pectoralis major

28
Q

What muscle?
(a) Extends, adducts, and rotates arm medially at the shoulder joint
(b) Draws arm downward and backward

A

Latissimus dorsi

29
Q

What muscle?
(a) Extends arm at the shoulder joint
(b) Assists with adduction and rotation of arm laterally

A

Teres major

30
Q

What muscle?
Flexes and adducts arm at shoulder

A

Coracobrachialis

31
Q

The ______ is the proximal aspect of the ulna and is medical term for elbow

A

olecranon

32
Q

What protects the olecranon?

A

olecranon bursa

33
Q

What movements does the elbow do?

A

-flexion and extension
-Supination
-Pronation

34
Q

Supination and pronation occur ONLY where?

A

at the elbow

35
Q

muscles that move the radius and ulna
What muscle?
(1) Flexes arm at the shoulder
(2) Flexes and supinates forearm at the elbow

A

Biceps Brachii

36
Q

muscles that move the radius and ulna
What muscle?
Flexes forearm at the elbow joint

A

Brachialis

37
Q

muscles that move the radius and ulna
What muscle?
Flexes forearm at the elbow joint

A

Brachioradialis

38
Q

muscles that move the radius and ulna
What muscle?
(1) Extends forearm at the elbow joint
(2) Extends arm at shoulder

A

Triceps brachii

39
Q

muscles that move the radius and ulna
What muscle?
Supinates forearm

A

Supinator

40
Q

muscles that move the radius and ulna
What muscle?
Pronates forearm

A

Pronator teres

41
Q

Carpal bones <3

mnemonic
Some
Lovers
Try
Positions
That
They
Cant
Handle

A

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

42
Q

What categories of bones make up the hand

A

Carpals
Metacarpals
Phalanges

43
Q

muscles that move the wrist
What muscle?
Flexes and abducts hand at the wrist

A

Flexor carpi radialis

44
Q

muscles that move the wrist
What muscle?
Flexes and adducts hand at the wrist

A

Flexor carpi ulnaris

45
Q

muscles that move the wrist
What muscle?
Weakly flexes hand at the wrist joint

A

Palmaris

46
Q

muscles that move the wrist
What muscle?
(1) Flexes hand at wrist
(2) Flexes phalanges of each finger at the PIP joint

A

Flexor digitorum superficialis

47
Q

muscles that move the wrist
What muscle?
(1) Flexes hand at wrist
(2) Flexes phalanges of each finger at DIP

A

Flexor digitorum profundus

48
Q

muscles that move the wrist
What muscle?
Extends and abducts hand at the wrist joint

A

Extensor carpi radialis longus

49
Q

muscles that move the wrist
What muscle?
Extends and adducts hand at the wrist joint

A

Extensor carpi ulnaris

50
Q

muscles that move the wrist
What muscle?
-Extends hand at wrist joint
-Extends phalanges of each finger

A

Extensor digitorum

51
Q

What nerve?
(1) Motor supply to most of the intrinsic hand muscles
–(a) Excludes thenar muscles and two lumbricals on radial aspect
(2) Sensation to little finger and ½ of ring finger

A

Ulnar nerve

52
Q

What nerve?
Palmar and dorsal aspect of first 3 and ½ fingers

A

Median nerve

53
Q

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

A

Radial nerve