STRUCTURAL AND FUNCTIONAL ORGANIZATION OF THE UPPER EXTREMITY MUSCULOSKELETAL SYSTEM

Question 1

NAME the regions of the vertebral column.

Answer 1

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

Question 2

What region of the spine is Lordotic?

Answer 2

cervical and lumbar

Question 3

What region of the spine is Kyphotic?

Answer 3

thoracic and sacral

Question 4

NAME the 3 bones of the thorax

Answer 4

1 Manubrium
2 Body
3 Xyphoid process

Question 5

R1-R7
R8-R10
R11- R12

Answer 5

1 true ribs
2 false ribs
3 floating ribs

Question 6

NAME the 2 bones of the pectoral girdle

Answer 6

1 Clavicle
2 Scapula

Question 7

Name the 3 ligaments of the pectoral girdle.

Answer 7

-Acromioclavicular
-Coracoclavicular
-Coracoacromial

Question 8

DESCRIBE the function and anatomy of the labrum.

Answer 8

Deepens the glenoid and provides more stability to the joint

Question 9

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

Answer 9

-Supraspinatus
-Infraspinatus
-Teres minor
-Subscapularis

Question 10

Assists deltoid in abduction of the humerous at the shoulder

Answer 10

Supraspinatus

Question 11

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

Answer 11

Infraspinatus

Question 12

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

Answer 12

Teres minor

Question 13

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

Answer 13

Subscapularis

Question 14

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

Answer 14

Deltoid

Question 15

NAME the bones of the elbow.

Answer 15

-Humerus
-Radius
-Ulna

Question 16

NAME the 2 bones of the pectoral girdle?

Answer 16

1 Clavicle
2 Scapula

Question 17

What articulates with the clavicle medially?

Answer 17

sternum

Question 18

What articulates with the clavicle laterally?

Answer 18

acromion

Question 19

What are the 4 parts of the scapula?

Answer 19

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

Question 20

What are the 3 ligaments of the pectoral girdle?

Answer 20

1 Acromioclavicular
2 Coracoclavicular
3 Coracoacromial

Question 21

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

Answer 21

glenoid cavity

Question 22

What deepens the glenoid and provides stability to the joint?

Answer 22

glenoid labrum

Question 23

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

Answer 23

Supraspinatus

Question 24

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

Answer 24

Infraspinatus

Question 25

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

Answer 25

Teres Minor

Question 26

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

Answer 26

Subscapularis

Question 27

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

Answer 27

Deltoid

Question 28

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

Answer 28

Trapezius

Question 29

What muscle: Elevates scapula and rotates downward?

Answer 29

Levator scapula

Question 30

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

Answer 30

Rhomboid major

Question 31

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

Answer 31

Pectoralis major

Question 32

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

Answer 32

Latissimus dorsi

Question 33

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

Answer 33

Teres major

Question 34

What muscle: Flexes and adducts arm at shoulder?

Answer 34

Coracobrachialis

Question 35

NAME the 3 bones of the elbow

Answer 35

1 Humerus 2 Radius 3 Ulna

Question 36

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

Answer 36

Biceps Brachii

Question 37

What muscle? Flexes forearm at the elbow joint

Answer 37

Brachialis

Question 38

What muscle? Flexes forearm at the elbow joint

Answer 38

Brachioradialis

Question 39

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

Answer 39

Triceps brachii

Question 40

NAME the 8 bones of the hand?

Answer 40

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

Question 41

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

Answer 41

Flexor carpi radialis & ulnaris

Question 42

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

Answer 42

Palmaris

Question 43

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

Answer 43

Flexor digitorum superficialis

Question 44

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

Answer 44

Extensor carpi radialis longus & ulnaris

Question 45

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

Answer 45

Flexor digitorum profundus

Question 46

Sensation to little finger and ½ of ring finger

Answer 46

Ulnar nerve

Question 47

Palmar and dorsal aspect of first 3 and ½ fingers

Answer 47

Median nerve

Question 48

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

Answer 48

Radial nerve