Upper extremity A&P

Question 1

Sections of the vertebral column and how many vertebrae

Answer 1

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

Question 2

What are the normal curves of the spine?

Answer 2

Lordotic: Cervical and lumbar vertebrae
Kyphotic: Thoracic and Sacral

Question 3

Bones of the thorax

Answer 3

Sternum
-manubrium
- body
- xyphoid process

Ribs

Question 4

What are the ribs 1-7 called?

Answer 4

True ribs: costal cartilage occurs directly with the sternum

Question 5

What are ribs 8-10 called?

Answer 5

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

Question 6

What are ribs 11-12 called?

Answer 6

Floating ribs: do not articulate with the sternum at all

Question 7

What are the bones of the pectoral girdle?

Answer 7

Clavicle
Scapula
Acromion
Coracoid

Question 8

What are the ligaments of the pectoral girdle?

Answer 8

Acromioclavicular ligament
Coracoclavicular ligament
Coracoacromial ligament

Question 9

What is the glenoid cavity?

Answer 9

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

Question 10

What is the glenoid labrum?

Answer 10

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

Question 11

What are the muscles that make up the rotator cuff?

Answer 11

“SITS”
Supraspinatus
Infraspinatus
Teres Minor
Subscapularis

Question 12

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

Answer 12

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

Question 13

Actions of the deltoid

Answer 13

Abducts, flexes and rotates arm at shoulder joint

Question 14

What muscle move the scapula multi-directionally

Answer 14

Trapzeius

Question 15

Actions of the levator scapula

Answer 15

Elevates and adducts the scapula and rotates downward

Question 16

Actions of the rhomboid major

Answer 16

Elevates and adducts scapula and rotates downward, stabilizes scapula

Question 17

Actions of the pectoralis major

Answer 17

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

Question 18

Action of the latissimus dorsi

Answer 18

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

Question 19

Action of the teres major

Answer 19

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

Question 20

Action of the coracobrachialis

Answer 20

Flexes and adducts arm at shoulder

Question 21

Bones of the elbow

Answer 21

Humerus
Radius
Ulna

Question 22

What is the olecranon?

Answer 22

Proximal aspect of ulna, medical term for elbow

Question 23

What protects the olecranon?

Answer 23

Olecranon bursa

Question 24

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

Answer 24

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

Question 25

Actions of the biceps brachii

Answer 25

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

Question 26

Actions of the brachialis

Answer 26

Flexes forearm at elbow joint

Question 27

What Flexes forearm at the elbow joint

Answer 27

brachioradialis

Question 28

Which muscle Extends forearm at the elbow joint

Answer 28

triceps brachii

Question 29

Actions of the supinator

Answer 29

Supinates forearm

Question 30

Actions of the pronator teres

Answer 30

Pronates forearm

Question 31

Names of carpals

Answer 31

Scaphoid Lunate Triquetrium Pisiform Trapezium Trapezoid Capitate Hamate

Question 32

What are the parts of the metacarpals?

Answer 32

Base, body, head

Question 33

How are the phalanges numbered?

Answer 33

1-5 starting laterally

Question 34

Actions of carpi radialis

Answer 34

Flexes and abducts hand at the wrist

Question 35

Actions of flexor carpi ulnaris

Answer 35

Flexes and adducts hand at the wrist

Question 36

Actions of palmaris

Answer 36

Weakly flexes hand at the wrist

Question 37

Action of flexor digitorum superficialis

Answer 37

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

Question 38

Action of flexor digitorum profundus

Answer 38

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

Question 39

Action of extensor carpi radialis longus

Answer 39

Extends and abducts hand at the wrist joint

Question 40

Action of extensor carpi ulnaris

Answer 40

Extends and adducts hand at the wrist joint

Question 41

Action of extensor digitorum

Answer 41

Extends and adducts hand at the wrist joint

Question 42

The ulnar nerve provides sensation to which fingers?

Answer 42

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

Question 43

The median nerve provides sensation to which fingers

Answer 43

Palmar and dorsal aspect of first 3 and ½ finger

Question 44

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

Answer 44

Radial nerve