UE Osteology

Question 1

what are incomplete fractures in children referred to as?

Answer 1

greenstick fractures

Question 2

what is the most common fracture site on the humerus?

Answer 2

surgical neck

Question 3

What three muscles insert onto the greater tubercle of the humerus?

Answer 3

1. supraspinatus 2. infraspinatus 3. subscapularis

Question 4

What houses the ulnar nerve?

Answer 4

The groove for the ulnar nerve on the distal end of the humerus

Question 5

What could cause avulsion of the medial humeral epicondyle?

Answer 5

Severe abduction of the extended elbow

Question 6

Why is a fracture of the olecranon considered an avulsion fracture?

Answer 6

Because of the forceful nature of the triceps brachii muscle

Question 7

What is a Colles fracture?

Answer 7

fractures of the distal end of the radius (from braking falls)

Question 8

What is the most commonly fractured carpal bone?

Answer 8

the scaphoid bone

Question 9

What is the carpal tunnel?

Answer 9

The passage anterior to the carpal bones posterior to the flexor retinaculum

Question 10

What site does the subclavian muscle sit in?

Answer 10

The subclavian groove on the clavicle

Question 11

What impression is on the sternal end of the clavicle?

Answer 11

the impression for the costoclavicular ligament

Question 12

Where is the coronoid process found?

Answer 12

the ulna

Question 13

Where is the coracoid process?

Answer 13

the scapula

Question 14

Where is the conoid tubercle?

Answer 14

the posterior clavicle

Question 15

Where is the deltoid tubercle located?

Answer 15

on the scapular spine

Question 16

Where is the subscapular fossa located?

Answer 16

anterior aspect of the scapula

Question 17

How do you get from the supraspinous fossa down to the infraspinous fossa?

Answer 17

the greater scapular notch

Question 18

Where is the deltoid tuberosity located?

Answer 18

on the anterior aspect of the humerus

Question 19

Why is the greater tubercle of the humerus susceptible to avulsion?

Answer 19

the supraspinatus, the infraspinatous, and the subscapularis muscles all insert onto the greater tubercle of the humerus

Question 20

What makes up the humeral condyle?

Answer 20

the capitulum and the trochlea

Question 21

The medial humeral epicondyle sticks out so far that it forms what?

Answer 21

it forms a groove, which is called groove for the ulnar nerve. The ulnar nerve runs through this groove and when you hit it, it’s your funny bone

Question 22

Severe abduction of the extended elbow can cause what

Answer 22

avulsion of the medial humeral epicondyle

Question 23

Inferior to the coronoid process (anterior), you would find?

Answer 23

ulnar tuberosity

Question 24

Where is the dorsal tubercle found?

Answer 24

on the distal end of the posterior radius

Question 25

Where is the ulnar notch located?

Answer 25

on the distal end of the radius

Question 26

What bones are fractured in a colles fracture?

Answer 26

distal end of the radius as well as the styloid process of the ulna

Question 27

Which metacarpal has a styloid process?

Answer 27

the third metacarpal (posterior aspect)

Question 28

When an individual punches something with a closed fist, which bone is susceptible to fracture?

Answer 28

the head of the 5th metacarpal

Question 29

a fracture of the head of the 5th metacarpal is referred to as?

Answer 29

a boxer’s fracture

Question 30

If a patient gets his fingers slammed in a door, what bone is most likely to be fractured?

Answer 30

the distal phalanges

Question 31

If a baseball pitcher presents, or a patient who repeatedly makes that motion, what is most likely the injury?

Answer 31

the glenoid labrum is torn

Question 32

Why does the glenoid labrum tear?

Answer 32

in response to a sudden contraction of the biceps brachii

Question 33

Where does a glenoid labrum tear occur?

Answer 33

in the anteriorsuperior part of the labrum