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

Lecture 7: Upper Extremity Osteology Flashcards

1
Q

What all technically constitutes the Upper Extremity?

A

Shoulder

Axillary Region

Brachium (Arm / Bicep Region)

Antebrachium (Forearm)

Manus (Hand)

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2
Q

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

A

A Greenstick Fracture

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3
Q

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

A

The Coracoid process

(Not Coranoid! The extra C is for Crow)

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4
Q

What attaches to the Supraglenoid Tubercle?

A

The Long Head of the Biceps Brachii Muscle

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5
Q

What attaches to the Infraglenoid Tubercle?

A

The Long Head of the Triceps Brachii Muscle

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6
Q

Where does the Deltoid attach on the Scapula?

A

The Deltoid Tubercle (on the spine of the scapula)

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

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7
Q

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

A

It is where the Humerus is most likely to break

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8
Q

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

A

Supraspinatus M.

Infraspinatus M.

Teres Minor M.

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9
Q

What muscle attaches to the Lesser Humeral Tubercle?

A

Subscapularis M.

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10
Q

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

A

The Long Head of the Biceps Brachii M.

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11
Q

What muscles attach to the intertubercular groove of the humerus?

A

Teres Major (the wierdo)

Pectoralis Major

Latissimus Dorsi

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12
Q

Where does the Deltoid attach on the Humerus?

A

The Deltoid Tuberosity

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

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13
Q

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

A

The Lateral Humeral Epicondyle

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14
Q

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

A

Medial Epicondyle of the Humerus

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15
Q

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

A

The Ulnar Nerve

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16
Q

What does the Capitulum do?

A

Articulates with the Fovea of the Radius

17
Q

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

A

Coranoid Fossa

Radial Fossa

18
Q

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

A

The Olecranon Fossa

19
Q

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

A

Avulsion of the Medial Humeral Epicondyle

20
Q

What attaches to the Ulnar Tuberosity?

A

The Brachialis Muscle

21
Q

Where does the Ulna articulate with the Carpals?

A

It doesn’t!

There is an articular disc that keeps them separate.

22
Q

What sort of fracture is a “fractured elbow?”

A

Avulsion Fracture of the Olecranon Process

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

23
Q

What attaches to the Radial Tuberosity?

A

The Biceps Brachii Tendon

24
Q

What are the four bones of the Proximal Carpal Row?

A

Scaphoid

Lunate

Triquetrium

Pisiform

25
Q

What are the four bones of the Distal Carpal Row

A

Trapezium

Trapezoid

Capitate

Hamate

26
Q

What is the most commonly fractured carpal?

A

Scaphoid B.

27
Q

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

A

Medial Border:

Hamulus of the Hamate B.

Pisiform Bone

Lateral Border:

Tubercle of the Scaphoid B.

Tubercle of the Trapezium

28
Q

What travels through the carpal tunnel?

A

Tendon of Flexor Digitorum Superficialis M.

Tendon of Flexor Digitorum Profundus M.

Tendon of Flexor Carpi Radialis M.

Median Nerve

29
Q

What tunnel is being compressed by someone leaning on handlebars?

A

The Guyon Tunnel

30
Q

What makes up the Guyon Tunnel?

A

Bones: The Pisiform and the Hamulus of the Hamate

Ligaments: The Pisohamate Ligament and the Pisometacarpal Ligament

Ulnar Nerve travels though

31
Q

What is suscepitble to injury in a Boxer’s Fracture?

A

5th metacarpal

32
Q

What special osteological feature does the third metacarpal have that the others don’t?

A

A Styloid Process

33
Q

What bone does the Pollux not have?

A

An Intermediate Phalanx

34
Q

What ring of fibrocartilage surrounds and deepens the Glenohumeral Joint?

A

The Glenoid Labrum

35
Q

A rapid contraction of the Biceps Brachii M. can eventually cause a tear in what structure - and what part is likely to be affected?

A

The Glenoid Labrum can be torn in this manner.

Usually (especially when pitching a baseball) this happens in the anterosuperior part.

Year 1: 03. MSK Exam 1 (23 decks)

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