Ch 3 Upper Extremity A&P

Question 1

Number of cervical vertebrae

Answer 1

7

Question 2

Number of thoracic vertebrae

Answer 2

12

Question 3

Number of lumbar vertebrae

Answer 3

5

Question 4

Number of sacrum vertebrae

Answer 4

5

Question 5

Number of coccyx vertebrae

Answer 5

4

Question 6

Lordotic curves

Answer 6

Cervical & Lumbar curves

Question 7

Kyphotic curves

Answer 7

Thoracic and Sacral curves

Question 8

Vertebrae anatomy includes:

Answer 8

Body

Vertebral arch

Processes extending from the arch

Question 9

Vertebrae that have facets for rib articulation

Answer 9

Thoracic

Question 10

Largest, strongest vertebrae

Spinous processes are short, thick

Answer 10

Lumbar

Question 11

Vertebrae foundation for pelvic girdle

Contain sacral foramina for nerves and blood vessels

Answer 11

Sacrum

Question 12

True ribs

Answer 12

1-7

Question 13

False ribs

Answer 13

8-10

Question 14

Floating ribs

Answer 14

11-12

Question 15

False ribs articulate with the sternum via:

Answer 15

Cartilage of Rib 7

Question 16

Only bony connection for arms and upper torso

Answer 16

Clavicle

Question 17

Clavicle articulates with _____ medially

Articulates with ______ laterally

Answer 17

Sternum

Acromion

Question 18

Part of the scapula that forms the tip of the shoulder

Extends anteriorly and superiorly over the humeral head

Answer 18

Acromion process

Question 19

Scapula

Provides attachment site for muscles and ligaments

Answer 19

Coracoid process

Question 20

Anatomy of the ligaments of the pectoral girdle

Answer 20

Acromioclavicular ligament

Coracoclavicular ligament

Coracoacromial ligament

Question 21

The labrum consists of:

Answer 21

Glenoid cavity

Glenoid labrum

Question 22

Shallow cavity, allowing only 25% of the humeral head to make contact

Articulates with the head of the humerus to form the shoulder joint

Answer 22

Glenoid Cavity

Question 23

Forms a ring around the glenoid cavity

Deepens the glenoid and provides more stability to the joint

Answer 23

Glenoid labrum

Question 24

Muscles of the rotator cuff

Answer 24

Supraspinatus

Infraspinatus

Teres minor

Subscapularis

Question 25

Assists deltoid in abduction of the humerus at the shoulder

Answer 25

Supraspinatus

Question 26

External rotation of the humerus at the shoulder joint

Answer 26

Infraspinatus

Question 27

Assists adduction and rotation of the arm laterally Extends arm at shoulder and rotation of the arm externally

Answer 27

Teres minor

Question 28

Internal rotation of the arm at the shoulder

Answer 28

Subscapularis

Question 29

Abducts, flexes, extends, and rotates arm at the shoulder joint

Answer 29

Deltoid

Question 30

Mutiple fibers in this large muscle move the scapula multi-directionally

Answer 30

Trapezius

Question 31

Elevates scapula and rotates downward

Answer 31

Levator Scapula

Question 32

Elevates and adducts scapula and rotates downward Stabilizes scapula

Answer 32

Rhomboid major

Question 33

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

Answer 33

Pectoralis major

Question 34

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

Answer 34

Latissimus dorsi

Question 35

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

Answer 35

Teres major

Question 36

Flexes and adducts arm at shoulder

Answer 36

Coracobrachialis

Question 37

Bones of the elbow

Answer 37

Humerus Radius Ulna

Question 38

Proximal aspect of the ulna Medical term for elbow

Answer 38

Olecranon

Question 39

Elbow is a ____ joint

Answer 39

Hinge

Question 40

ONLY occurs at the elbow

Answer 40

Pronation Supination

Question 41

Occurs between radius and ulna in a specialized joint

Answer 41

Supination & Pronation

Question 42

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

Answer 42

Biceps Brachii

Question 43

Flexes forearm at the elbow joint

Answer 43

Brachialis & Brachioradialis

Question 44

Extends forearm at the elbow joint Extends arm at shoulder

Answer 44

Triceps brachii

Question 45

Supinates forearm

Answer 45

Supinator

Question 46

Pronates forearm

Answer 46

Pronator teres

Question 47

Bones of the hand

Answer 47

``` Scaphoid Lunates Triquetrum Pisiform Trapezium Trapezoid Capitate Hamate Metacarpals Phalanges ```

Question 48

Metacarpals are composed of:

Answer 48

Base Body Head

Question 49

Flexes and abducts hand at the wrist

Answer 49

Flexor carpi radialis

Question 50

Flexes and adducts hand at the wrist

Answer 50

Flexor carpi ulnaris

Question 51

Weakly flexes hand at the wrist joint

Answer 51

Palmaris

Question 52

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

Answer 52

Flexor digitorum superficialis

Question 53

Flexes hand at wrist Flexes phalanges of each finger at DIP

Answer 53

Flexor digitorum profundus

Question 54

Extends and abducts hand at the wrist joint

Answer 54

Extensor carpi radialis longus

Question 55

Extends and adducts hand at the wrist joint

Answer 55

Extensor carpi ulnaris

Question 56

Extends hand at wrist joint Extends phalanges of each finger

Answer 56

Extensor digitorum

Question 57

Motor supply to most of the intrinsic hand muscles Sensation to little finger and 1/2 of ring finger

Answer 57

Ulnar nerve

Question 58

Palmar and dorsal aspect of first 3 and 1/2 fingers

Answer 58

Median nerve

Question 59

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

Answer 59

Radial nerve