2: appendicular (upper)

Question 1

List 5 bones in axial skeleton

Answer 1

Skull, hyoid, auditory ossicles, vertebral column, thorax (sternum and ribs)

Question 2

How many bones in axial skeleton?

Answer 2

80 bones

Question 3

How many bones in appendicular skeleton?

Answer 3

126 bones

Question 4

List 4 bones in appendicular

Answer 4

Pectoral girdle (scapula + clavicle) free upper limbs, pelvic girdle, free lower limbs

Question 5

Purpose of pectoral girdle

Answer 5

Attach upper limbs to axial skeleton

Question 6

What is this joint?

Answer 6

sternoclavicular: Clavicle articulates with sternum

Question 7

Divisions of skeletal system

Answer 7

skull, pectoral girdle, thorax free upper limbs, free lower limbs, vertebral column, pelvic girdle

Question 8

What is this joint?

Answer 8

Acromioclavicular: Clavicle articulates with scapula

Question 9

What is this joint?

Answer 9

Glenohumeral: Humerus attaches at shoulder

Question 10

Are pectoral girdles attached to spine?

Answer 10

No. Attached to muscle on thorax

Question 11

Clavicle articulates

Answer 11

With sternum medially and scapula laterally

Question 12

Medial half of clavicle

Answer 12

Convex anteriorly - curves toward you anatomical position

Question 13

Lateral half of clavicle

Answer 13

Concave anteriorly

Question 14

How can clavicle act as strut of pectoral girdles?

Answer 14

Compression-resistant rod that props shoulder joint away from rib cage

Question 15

Sternal end

Answer 15

Medial end. Rounded

articulates w/ manubrium of sternum medially at sternoclavicular joint

Question 16

Acromial end

Answer 16

Lateral end, broad and flat

articulates with acromion of scapula at acromioclavicular joint

Question 17

Conoid tubercle

Answer 17

Inferior acromial end. Attaches conoid ligament

Question 18

What attaches here?

Answer 18

costoclavicular ligament: Connects first rib to clavicle

at inferior medial sternal end

Question 19

Scapula articulates with

Answer 19

clavicle and humerus

Question 20

Label this

Answer 20

Acromion

elaborate:

Question 21

What is this?

Answer 21

Glenoid cavity located laterally forms glenohumeral ;shoulder joint with
the head of humerus

Question 22

Describe scapula

Answer 22

triangular, flat bone, length from 2nd -7th ribs

3 angles, 3 borders, 3 fossae, 3 processes

Question 23

What is this?

Answer 23

Scapular spine is a crest/ridge laterally ends as acromion process

2- spine. 1 - root of spine

Question 24

What are 1 and 2 for?

Answer 24

1- suprasinous fossa, 2-infraspinous fossa sites for muscle attachment

1 - attaches supraspinatous 2- attaches infraspinatous

Question 25

Where is coracoid process? | for muscle attachment

Answer 25

2

Question 26

How many bones per upper limb?

Answer 26

30

Question 27

List the 5 bones in the upper limbs

Answer 27

humerus within the arm ❑ ulna & radius within the forearm ❑ carpal bones within the wrist ❑ metacarpal bones within the palm ❑ phalanges in the fingers ## Footnote CHUMP - carpal, humerus, ulna/radius, metacarpal, phalanges

Question 28

List the 7 joints in the upper extremity

Answer 28

❑ glenohumeral ❑ Elbow ❑ Wrist ❑ Intercarpal ❑ carpometacarpal ❑ Metacarpophalangeal ❑ interphalangeal ## Footnote mneumonic:

Question 29

What is the longest/largest upper limb bone?

Answer 29

humerus

Question 30

Label parts of humerus at proximal end

Answer 30

1- head, 2- anatomical neck, 3- surgical neck, 4- deltoid tuberosity, 5-shaft, 6- greater tubercle, 7-lesser tubercle

Question 31

Greater and lesser tubercles are for

Answer 31

muscle attachments

Question 32

Surgical neck is

Answer 32

fracture site

Question 33

Label parts of humerus distal end

Answer 33

1-radial fossa 2- lateral epicondyle 3-capitulum 4-coronoid fossa 5-medial epicondyle 6-trochlea 7-olecranon fossa 8-lateral epicondyle

Question 34

Lateral capitulum articulates with

Answer 34

head of radius

Question 35

olecranon fossa is posterior depression for

Answer 35

olecranon process of ulna

Question 36

medial trochlea articulates with

Answer 36

ulna

Question 37

medial and lateral epicondyles are attachment of

Answer 37

forearm muscles

Question 38

Label

Answer 38

yellow - head radius, green-neck, blue - ulnar tuberosity, brown - radial tuberosity | 1- radius 2- ulna

Question 39

Which bone is located medial aspect of forearm? lateral?

Answer 39

medial - ulna lateral- radius | lateral and radius share 'r'

Question 40

trochlear notch articulates with

Answer 40

humerus

Question 41

radial notch articulates with

Answer 41

radius

Question 42

olecranon process articulates with

Answer 42

olecranon fossa of humerus

Question 43

head of radius articulates with ## Footnote 2 things

Answer 43

capitulum of humerus and radial notch of ulna

Question 44

# anteriorly elbow joint | ulna and radius articulation

Answer 44

ulna + trochlea, radius + capitulum

Question 45

# posteriorly elbow joint

Answer 45

olecranon fossa + olecranon process ulna

Question 46

distal end of radius articulates with

Answer 46

2 bones of the wrist to form radiocarpal joint: scaphoid and lunate

Question 47

head of ulna distally articulates with

Answer 47

ulnar notch of radius Note: ulna does NOT have a joint with hand

Question 48

styloid process

Answer 48

shaft of radius widens distally, forms it on lateral side

Question 48

ulnar head seperated from wrist joint by

Answer 48

fibrocartilage disc

Question 49

radius forms wrist joint with 3 other bones

Answer 49

scaphoid, lunate, triquetrum

Question 50

radius forms distal radioulnar joint with

Answer 50

ulnar head