Osteology of Upper extremities

Question 1

The pectoral girdle (shoulder girdle) is made up of 2 bones called the

Answer 1

clavicle and scapula

Question 2

The proximal head of the humerus articulates with

Answer 2

glenoid of scapula

Question 3

The lesser tubercule of the humerus is the attachment site of

Answer 3

subscapularis

Question 4

The greater tubercle of the humerus is the attachment of

Answer 4

rest of rotator cuff muscles

Question 5

The bicipital groove of the humerus is attachement for

Answer 5

long tendon of biceps brachii

Question 6

The deltoid tuberosity of the humerus is the attachment site of

Answer 6

deltoid muscle

Question 7

The midshaft of the humerus provides

Answer 7

attachment for corocobrachialis and brachialis muscles

Question 8

The medial epicondyle of the distal humerus provides origin for

Answer 8

wrist and finger flexors

Question 9

The lateral epicondyle of the distal humerus provides origin for

Answer 9

wrist and finger extensors

Question 10

Articulation with the radius and ulna forms what

Answer 10

elbow joint

Question 11

The head of the radius articulates

Answer 11

with capitulum of humerus and radial notch on ulna

Question 12

The radial tuberosisty provides attachment site

Answer 12

for biceps brachii tendon

Question 13

Radial shaft provides attachment sites for

Answer 13

pronators and supinators of the forearm, as well as some of the flexors and extensors of the wrist and fingers

Question 14

distal end of the radius articulates with the

Answer 14

scaphoid and lunate carpal bones

Question 15

Trochlear notch (semilunar notch) of the ulna articulates with

Answer 15

trochlea of humerus to form the stable hinge joint of the elbow

Question 16

Coronoid process of the ulna provides insertion point for

Answer 16

Brachialis and origin for pronator teres

Question 17

The olecranon process provides insertion for the

Answer 17

triceps tendon

Question 18

The ulnar shaft provides origin for

Answer 18

pronator quadratus and supinator as well as digital extensors

Question 19

The distal ulna does not articulate with the

Answer 19

Carpal bones

Question 20

How many bones make up the carpals

Answer 20

8 bones

Question 21

how many bones make up the metacarpals

Answer 21

5 bones

Question 22

how many bones make up the phalanges

Answer 22

14 bones
5 digits
each has three segments
but thumb has only 2 segments

Question 23

The flexors and extensors of the wrist have their insertions on

Answer 23

Carpals

Question 24

The flexors and extensors of the digits have their insertions on

Answer 24

phalanges

Question 25

The intrinsic muscles of the hand mostly originate and insert on ______, but some insert on structures associated with phalanges

Answer 25

metacarpals

Question 26

What 3 muscles attache to the coracoid process of the scapula

Answer 26

Short head of biceps brachii Coracobrachialis Pectoralis minor

Question 27

What two muscles insert onto the spine of the scapula

Answer 27

Deltoid and trapezius

Question 28

What 5 muscles attache to the medial (vertebral) border of the Scapula

Answer 28

``` Serratus anterior Rhomboid major Rhomboid minor levator scapulae (superior angle) Latissimus dorsi (inferior angle) ```

Question 29

What two muscles attach to the lateral (axillary) border of the scapula

Answer 29

Teres minor | Teres major

Question 30

What muscle attaches to the Supraglenoid tubercle

Answer 30

long head of biceps brachii

Question 31

What muscle attaches to the infraglenoid tubercle

Answer 31

Long head of triceps brachii

Question 32

What muscles make up the rotator cuff

Answer 32

Anterior: Subscapularis (subsapular fossa) Poserior: Supraspinatus (supraspinous fossa) Infraspinatus (infraspinous fossa) Teres minor (lateral/axiallary border of scapula)

Question 33

What lies in the bicipital groove (inter tubercular sulcus)

Answer 33

Long tendon of biceps brachii

Question 34

The deltoid tuberosity is the insertion site for

Answer 34

The deltoid muscle

Question 35

The Brachialis originates on the

Answer 35

anterior aspect of the humeral midshaft

Question 36

Corcobrachialis inserts on the

Answer 36

medial aspect of the humeral midshaft

Question 37

The medial epicondyle provides origin for

Answer 37

wrist and finger flexors (common flexor origin)

Question 38

The lateral epicondyle provides origin for the

Answer 38

finger and wrist extensors (common extensor origin)

Question 39

What forms the elbow joint

Answer 39

distal humerus, radius, and ulna

Question 40

The head of the radius articulates with

Answer 40

Capitulum of humerus and radial notch ulna

Question 41

The radial tuberosity provides the attachment site for

Answer 41

The bicpes brachii tendon

Question 42

The radial shaft provides attachment sites for

Answer 42

pronators and supinators of the forearm as well as some flexors and extensors of the wrists and fingers

Question 43

The distal end of the radius articulates with

Answer 43

with the scaphoid and lunate carpal bones

Question 44

The trochlear notch (semilunar notch) articulates with the

Answer 44

trochlea of the humerus to form the stable hinge joint of the elbow

Question 45

The coronoid process of the ulna provides the insertion point for

Answer 45

brachialis and origin of pronator teres

Question 46

The olecranon process provides the insertion point for

Answer 46

the triceps tendon

Question 47

The ulnar shaft provides the origin for

Answer 47

pronator quadrates and supinator as well as the digital extensors

Question 48

Does the distal ulna articulate with the carpal bones

Answer 48

No

Question 49

Flexors and extensors of the wrist have there insertions on

Answer 49

Carpals

Question 50

flexors and extensors of the digits have there insertions on the

Answer 50

phalanges

Question 51

Intrinsic muscles of the hands mostly originate and insert on the _______, but some insert on structures associated with the ____

Answer 51

metacarpals, phalanges