STRUCTURAL AND FUNCTIONAL ORGANIZATION OF THE UPPER EXTREMITY MUSCULOSKELETAL SYSTEM

Question 1

Name the regions of the vertebral column and how many vertebrae per section

Answer 1

a. Cervical
(1) 7 vertebrae
b. Thoracic
(1) 12 vertebrae
c. Lumbar
(1) 5 vertebrae
d. Coccyx
(1) 4 fused Vertebrae

Question 2

There are four normal cures which help to increase strength, help balance, and absorb shock.

Answer 2

I dont know what they are though and it doesnt say in the TG so far.

Question 3

Where would you find a lordotic curve

Answer 3

Cervical and thoracic vertebrae

Question 4

Where would you find a kyphotic curve

Answer 4

Thoracic and sacral curves

Question 5

Anatomy of a the vertebra

Answer 5

(1) Body
(2) Vertebral arch
(3) Processes extending from the arch

Question 6

Hallmarks of Thoracic Vertebra

Answer 6

(2) Larger than cervical vertebrae

(3) Have facets for rib articulation

Question 7

Hallmarks of Lumbar Vertebra

Answer 7

(2) Largest, strongest

(3) Spinous processes are short, thick

Question 8

Hallmarks of Sacrum Vertebra

Answer 8

(2) Foundation for pelvic girdle

(3) Contain sacral foramina for nerves and blood vessels

Question 9

bones of the thorax

Answer 9

a. Sternum

b. Ribs

Question 10

Parts of the sternum

Answer 10

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

Question 11

true ribs

Answer 11

R1-R7

Costal cartilage articulates directly with the sternum

Question 12

false ribs

Answer 12

R8-R10

Articulate with the sternum bi cartilage of Rib 7

Question 13

floating ribs

Answer 13

R11- R12

Do not articulate with the sternum at all

Question 14

bones of the pectoral girdle

Answer 14

a. Clavicle

b. Scapula

Question 15

What does the Clavicle articulate with

Answer 15

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

Question 16

Name the regions of the Scapula

Answer 16

(1) Spine
(2) Body
(a) Vertebral border
(b) Axillary border
(3) Acromion
(a) Part of the scapula that forms the “tip of the shoulder”
(b) Extends anteriorly and superiorly over the humeral head
(4) Coracoid
(a) Provides attachment site for muscles and ligaments

Question 17

Ligaments of the Pectoral Girdle

Answer 17

a. Acromioclavicular ligament
b. Coracoclavicular ligament
c. Coracoacromial ligament

Question 18

How much of the humeral head makes contact in the Glenoid Cavity

Answer 18

25%

Question 19

What is the ring that is formed in the glenoid cavity

Answer 19

Glenoid Labrum

Question 20

What does the glenoid labrum do

Answer 20

Deepens the glenoid and provides more stability to the joint

Question 21

What are the muscles of the rotator cuff

Answer 21

(SITS)
supraspinatus
infraspinatus
teres minor
subscapularis

Question 22

Which rotator cuff muscle Assists deltoid in abduction of the humerous at the shoulder

Answer 22

Supraspinatus

Question 23

Which rotator cuff muscle External rotation of the humerus at the shoulder joint

Answer 23

Infraspinatus

Question 24

Which rotator cuff muscle Extends arm at shoulder and rotation of the arm externally

Answer 24

Teres minor

Question 25

Which rotator cuff muscle Internal rotation of the arm at the shoulder.

Answer 25

Subscapularis

Question 26

Which muscle Abducts, flexes, and rotates arm at shoulder join

Answer 26

Deltoid

Question 27

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

Answer 27

Trapezius

Question 28

Which muscle Elevates scapula and rotates downward

Answer 28

Levator scapula

Question 29

Which muscle Elevates and adducts scapula and rotates downward and Stabilizes the scapula

Answer 29

Rhomboid major

Question 30

Which muscle Adducts and rotates arm medially at the shoulder and Flexes arm at the shoulder joint

Answer 30

Pectoralis major

Question 31

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

Answer 31

Latissimus dorsi

Question 32

Which muscle Extends arm at the shoulder joint and Assists with adduction and rotation of the arm medially

Answer 32

Teres major

Question 33

Which muscle Flexes and adducts arm at shoulder

Answer 33

Coracobrachialis

Question 34

Name the bones of the Elbow

Answer 34

a. Humerus b. Radius c. Ulna

Question 35

medical term for elbow

Answer 35

Olecranon *Protected by an olecranon bursa

Question 36

Moving the palm up

Answer 36

Supination

Question 37

Moving the palm down in the opposite direction

Answer 37

Pronation

Question 38

Supination and pronation occur ONLY at the

Answer 38

elbow.

Question 39

Which muscle Flexes arm at the shoulder and Flexes and supinates forearm at the elbow

Answer 39

Biceps Brachii

Question 40

Which muscle Flexes forearm at the elbow joint

Answer 40

Brachialis

Question 41

Which muscle Flexes forearm at the elbow joint

Answer 41

Brachioradialis

Question 42

Which muscle Extends forearm at the elbow joint and Extends arm at shoulder

Answer 42

Triceps brachii

Question 43

Which muscle Supinates forearm

Answer 43

Supinator

Question 44

Which muscle Pronates forearm

Answer 44

Pronator teres

Question 45

Name the bones of the hands

Answer 45

a. Carpals b. Metacarpals c. Phalanges

Question 46

Name the bones of the carpals

Answer 46

``` (Some Lovers Try Positions That They Cannot Handle) Scaphoid Lunate Triquetrim Pisiform Trapezium Trapezoid Capitate Hamete ```

Question 47

Name the region of the Metacarpals

Answer 47

Base body head

Question 48

Name the region of the Phalanges

Answer 48

1-5 | Base, body, head

Question 49

Which muscle Flexes and abducts hand at the wrist

Answer 49

Flexor carpi radialis

Question 50

Which muscle Flexes and adducts hand at the wrist

Answer 50

Flexor carpi ulnaris

Question 51

Which muscle Weakly flexes hand at the wrist joint

Answer 51

Palmaris

Question 52

Which muscle Flexes hand at wrist and Flexes phalanges of each finger at the PIP joint

Answer 52

Flexor digitorum superficialis Inversion

Question 53

Which muscle Flexes hand at wrist and Flexes phalanges of each finger at DIP

Answer 53

Flexor digitorum profundus

Question 54

Which muscle Extends and abducts hand at the wrist joint

Answer 54

Extensor carpi radialis longus

Question 55

Which muscle Extends and adducts hand at the wrist joint

Answer 55

Extensor carpi ulnaris

Question 56

Which muscle Extends hand at wrist joint and Extends phalanges of each finger 11.

Answer 56

Extensor digitorum

Question 57

Which 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

Answer 57

Ulnar nerve

Question 58

Which Nerve: | Palmar and dorsal aspect of first 3 and ½ fingers

Answer 58

Median nerve

Question 59

Which Nerve: | Dorsum of the hand and lateral first three fingers and one half of fourth finger

Answer 59

Radial nerve