Upper Extremity Osteology

Question 1

Impression for the Costoclavicular L. allows for attachment to

Answer 1

Costoclavicular L to the 1st rib

Question 2

Subclavian groove is the attachment point for the

Answer 2

Subclavius muscle

Question 3

Conoid Tubercle is the attachment point for the

Answer 3

Conoid L

Question 4

Trapezoid Line is the attachment for the

Answer 4

Trapezoid L.

Question 5

Suprascapular Notch transmits

Answer 5

Suprascapular A. & N.

Question 6

Supraglenoid Tubercle is the attachment point for the

Answer 6

Long head of the biceps brachii m.

Question 7

Infraglenoid Tubercle is the attachment point for

Answer 7

The long head of the triceps brachii m.

Question 8

Deltoid Tubercle is the attachment point for the

Answer 8

Deltoid muscle

Question 9

Most common fracture point of humerus

Answer 9

Surgical neck

Question 10

Humerus body contains

Answer 10

Groove for the radial N.

Question 11

Groove for radial n transmits

Answer 11

the radial n & deep brachial a.

Question 12

Origin of the expression “funny-bone”

Answer 12

Ulnar n compressed in groove for the ulnar n.

Question 13

Severe abduction of the extended elbow can result in

Answer 13

Avulsion of the medial humeral epicondyle

Question 14

Radial Fossa accommodates the

Answer 14

Radial Head when antebrachium is flexed

Question 15

Coronoid Fossa accommodates the

Answer 15

Coronoid process of the ulna when the antebrachium is flexed

Question 16

Olecranon Fossa accommodates the

Answer 16

Olecranon of the ulna when the antebrachcium is extended

Question 17

Often referred to as “Fractured Elbow”

Common in cases of falling

Answer 17

Fracture of Olecranon

Question 18

Trochlear Notch grips the

Answer 18

Humeral Trochlea

Question 19

Ulnar Tuberosity is the attachment point for

Answer 19

Brachialis M.

Question 20

Supinator Crest is the attachment point for

Answer 20

Supinator M.

Question 21

Fractures of the distal end of the radius
(Broken wrist)
Trying to break fall
Styloid process of ulna often also avulsed

Answer 21

Colle’s fracture

Question 22

Most commonly fractured carpal bone
Result of breaking a fall
Not visible on radiograph
Distal fragment is usually separated from its blood supply —>necrosis

Answer 22

Scaphoid fracture

Question 23

“Dinner fork deformity”

Answer 23

Colle’s Fracture

Question 24

Swelling of the tendons
Median nerve is compressed
At passage anterior to the carpal bones posterior to the flexor retinaculum

Answer 24

Carpal Tunnel Syndrome

Question 25

Depression between pisiform and Halmulus of Hamate

Answer 25

Guyon Tunnel

Question 26

Ulnar N. Gets compressed
Manifests as loss of sensation and muscular weakness
Common in bicyclers

Answer 26

Guyon Canal Syndrome

Question 27

Fracture of head of the 5th metacarpal

Individual punches with a closed fist

Answer 27

“Boxer’s Fracture”

Question 28

Usually a result of slamming fingers in door

Answer 28

Distal Phalanx Fracture

Question 29

Tear usually a result of repeatedly throwing a ball,

Sudden contraction of the biceps brachii m.

Answer 29

Glenoid labrum tear