Lecture 7: Upper Extremity Osteology Flashcards Preview

Year 1: 03. MSK Exam 1 > Lecture 7: Upper Extremity Osteology > Flashcards

Flashcards in Lecture 7: Upper Extremity Osteology Deck (35)
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1

What all technically constitutes the Upper Extremity?

Shoulder

Axillary Region

Brachium (Arm / Bicep Region)

Antebrachium (Forearm)

Manus (Hand)

2

What special kind of fracture is common to the Clavicle in children?

A Greenstick Fracture

3

What is the name of the beak-like process of the scapula?

The Coracoid process

(Not Coranoid! The extra C is for Crow)

4

What attaches to the Supraglenoid Tubercle?

The Long Head of the Biceps Brachii Muscle

5

What attaches to the Infraglenoid Tubercle?

The Long Head of the Triceps Brachii Muscle

6

Where does the Deltoid attach on the Scapula?

The Deltoid Tubercle (on the spine of the scapula)

(NOT the Deltoid Tuberosity, which is on the Humerus)

7

What is the clinical significance of the Surgical Head of the Humerus?

It is where the Humerus is most likely to break

8

What three muscles attach to the Greater Tubercle of the Humerus?

Supraspinatus M.

Infraspinatus M.

Teres Minor M.

9

What muscle attaches to the Lesser Humeral Tubercle?

Subscapularis M.

10

What important structure runs through the Intertubercular Groove of the Humerus?

The Long Head of the Biceps Brachii M.

11

What muscles attach to the intertubercular groove of the humerus?

Teres Major (the wierdo)

Pectoralis Major

Latissimus Dorsi

12

Where does the Deltoid attach on the Humerus?

The Deltoid Tuberosity

(NOT the Deltoid Tubercle, which is on the Scapula)

13

What is the origin on the Humerus for several antebrachial extensors?

The Lateral Humeral Epicondyle

14

What is the origin on the Humerus for several antebrachial flexors?

Medial Epicondyle of the Humerus

15

What important nerve sits in the groove adjacent to the Medial Humeral Epicondyle?

The Ulnar Nerve

16

What does the Capitulum do?

Articulates with the Fovea of the Radius

17

What are the two anterior depressions on the distal end of the Humerus?

Coranoid Fossa

Radial Fossa

18

What is the posterior depression on the distal end of the Humerus called?

The Olecranon Fossa

19

What injury can be caused by severe abduction of the extended elbow?

Avulsion of the Medial Humeral Epicondyle

20

What attaches to the Ulnar Tuberosity?

The Brachialis Muscle

21

Where does the Ulna articulate with the Carpals?

It doesn't!

There is an articular disc that keeps them separate.

22

What sort of fracture is a "fractured elbow?"

Avulsion Fracture of the Olecranon Process

Difficult to repair because the Triceps Bracii Muscle pulls it away.

23

What attaches to the Radial Tuberosity?

The Biceps Brachii Tendon

24

What are the four bones of the Proximal Carpal Row?

Scaphoid

Lunate

Triquetrium

Pisiform

25

What are the four bones of the Distal Carpal Row

Trapezium

Trapezoid

Capitate

Hamate

26

What is the most commonly fractured carpal?

Scaphoid B.

27

What are the structures of the medial and lateral border of the Carpal Tunnel?

Medial Border:

Hamulus of the Hamate B.

Pisiform Bone

Lateral Border:

Tubercle of the Scaphoid B.

Tubercle of the Trapezium

28

What travels through the carpal tunnel?

Tendon of Flexor Digitorum Superficialis M. 

Tendon of Flexor Digitorum Profundus M. 

Tendon of Flexor Carpi Radialis M. 

Median Nerve

29

What tunnel is being compressed by someone leaning on handlebars?

The Guyon Tunnel

30

What makes up the Guyon Tunnel?

Bones: The Pisiform and the Hamulus of the Hamate

Ligaments: The Pisohamate Ligament and the Pisometacarpal Ligament

Ulnar Nerve travels though