Lecture 9: Upper Extremity Arthrology Flashcards Preview

Year 1: 03. MSK Exam 1 > Lecture 9: Upper Extremity Arthrology > Flashcards

Flashcards in Lecture 9: Upper Extremity Arthrology Deck (48)
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1

Sternoclavicular Joint

1. What are the bones involved?

2. What is the joint type?

3. What ligaments are involved?

1. What are the bones involved?

Sternal Facet on Sternal end of Clavicle and notch of the Manubrium

2. What is the joint type?

Sellar/Saddle Synovial

3. What ligaments are involved?

-Fibrous capsule

-Costoclavicular Ligament (rib to clavicle)

-Anterior Sternoclavicular Ligament (thickenings of fibrous capsule)

-Posterior Sternoclavicular Ligament

-Interclavicular Ligament (one clavicle to the other)

2

Acromioclavicular Joint

1. What are the bones involved?

2. What is the joint type?

3. What three ligaments are involved?

1. What are the bones involved?

Acromial end of Clavicle and facet of the acromion of Scapula

2. What is the joint type?

Planar Synovial

3. What ligaments are involved?

-Fibrous Capsule with Articular Disc

-Acromioclavicular Ligament (from Acromion to Clavicle, most of what holds the joint together)

-Coracoclavicular Ligament (has two parts corresponding to the tubercle / line of the sternum)

 

3

What two Ligaments make up the Coracoclavicular Ligament?

Conoid Ligament

Trapezoid Ligament

4

What are the two ways that can cause shoulder separation?

1. Landing on elbow: dislocaiton of acromioclavicular ligament without ligament rupture 

2. Landing directly on shoulder: dislocaiton of acromioclavicular ligament with rupture of coracoclavicular ligament

5

Glenohumeral Joint

1. What are the bones involved?

2. What is the joint type?

3. What ligaments are involved?

1. What are the bones involved?

Glenoid Cavity of Scapular Head and Head of Humerus

2. What is the joint type?

Spheroidal Synovial (Balla and Socket) Joint

3. What ligaments are involved?

-Fibrous Capsule (no articular disc)

-Glenohumeral Ligament

-Coracoacromial Arch and Ligament (protects from superior dislocation of the humerus)

-Coracohumeral Ligament (goes from the base of the coracoid process to the humerus)

-Transverse Humeral Ligament

 

 

6

What all makes up the Coracoacromial Arch?

-Acromion (bony process on scapula)

-Coracoid Process (lateral edge on superior scapular) 

-Coracoacromial Ligament

7

What does the Transverse Humeral Ligament do?

-Goes from the Greater Tubercle of the Humerus to the Lesser Tubercle of the Humerus

-Holds the Long Head of the Biceps Brachii Tendon in the Intertubercular Groove.

8

What are the two most likely ways to incur a glenohumeral dislocation?

-Anteriorly or Inferiorly (think throwing a baseball)

The Coracoacromial Arch stops Superior and Posterior Dislocation

The Humerus would strike the Acromion of the Scapula posteriorly

9

What two Bursa are associated with the Synovial Membrane of the Glenohumeral Joint?

Subacromial Bursa (doesn't communicate w/ synovial membrane)

Subscapular Bursa (communicates w/ synovial membrane)

10

Elbow Joint

1. What are the bones involved?

2. What is the joint type?

3. What ligaments are involved?

1. What are the bones involved?

-Humeral Condyle

-Trochlear Notch of Ulna

-Head of Radius

2. What is the joint type?

Ginglymus/Hinge Joint

3. What ligaments are involved?

-Fibrous capsule

-Radial Collateral Ligament of the Elbow

-Ulnar Collateral Ligament of the Elbow

-Annular Ligament of the Elbow (Ulna -> wraps around the joint -> Ulna)

11

What ligament is likely to tear if the elbow dislocates posteriorly?

Medial (Ulnar) Collateral Ligament of the Humerus

12

What seven bursae are present in the elbow?

 

1. Subcutaneous Bursa of the Lateral Epicondyle of the Humerus

2. Subcutaneous Bursa of the Medial Epicondyle of the Humerus

3. Bursa of Anconius

4. Bursa at the Origin of Extensor Carpi Radialis Brevis

Olecranon Burase:

5. Subtendinous Olecranon Bursae

6. Intratendinous Olecranon Bursae

7. Subcutaneous Olecranon Bursae

 

13

What disease is characterized by excessive friction between olecranon and skin?

Subcutaneous Olecranon Bursitis

Also called Student's / Miners / Dart Thrower's Elbow

14

How many different articulations are there between radius and ulnar?

Three

1. Proximal Radioulnar Joint

2. Middle Radioulnar Joint

3. Distal Radioulnar Joint

15

Proximal Radioulnar Joint

1. What are the bones involved?

2. What is the joint type?

3. What ligament is involved?

 

1. What are the bones involved?

Radius and ulna

2. What is the joint type?

Trochoid Synovial: primary site of Pronation/Supination (pivot motion)

3. What ligaments are involved?

-Annular Ligament (holds radial head together by going ulna to ulna

 

16

What is Nursemaid's Elbow?

Dislocation of radial head out of annular ligament 

-pulled elbow 

-most often seing pullling on arm of child 

17

Medial Radioulnar Joint

1. What are the bones involved?

2. What is the joint type?

3. What ligaments are involved?

1. What are the bones involved?

Radius and Ulna

2. What is the joint type?

Syndesmosis Fibrous Joint

3. What ligaments are involved?

-Oblique Cord (b/t coronoid process of ulna and radial body)

-Interosseous membrane (acts like a "sheet")

18

Distal Radioulnar Joint

1. What are the bones involved?

2. What is the joint type?

3. What ligaments are involved?

1. What are the bones involved?

Radius and Ulna

2. What is the joint type?

Trochoid SynovialSame as the proximal to allow for Supination and Pronation

3. What ligaments are involved?

-Articular Disc of Distal Radioulnar Joint

19

What is the Sacciform Recess?

Protrusion of Synovial Membrane from the Annular Ligament of the Elbow

20

Radiocarpal Joint

1. What are the bones involved?

2. What is the joint type?

3. What ligaments are involved?

1. What are the bones involved?

Distal End of Radius and Proximal Row of Carpal Bones

2. What is the joint type?

Condyloid Joint

3. What ligaments are involved?

-Fibrous Capsule

-Dorsal Radiocarpal Ligament

-Dorsal Ulnocarpal Ligament

-Palmar Radiocarpal Ligament

-Palmar Ulnocarpal Ligament

-Medial (Ulnar) Collateral Ligament of the Wrist

-Lateral (Radial) Collateral Ligament of the Wrist

21

What blocks out the ulna at the radiocarpal joint?

The Articulating Disc

22

Intercarpal Joints

1. What are the bones involved?

2. What is the joint type?

3. What ligaments are involved? 

1. What are the bones involved?

Between bones of the hand

2. What is the joint type?

Planar Synovial

3. What ligaments are involved?

-Dorsal/Palmar Intercarpal Ligaments (easy)

-Interosseous Intercarpal L. 

-Pisohamate Ligament

23

Midcarpal Joint

1. What are the bones involved?

2. What is the joint type?

3. What ligaments are involved?

1. What are the bones involved?

Between Proximal and Distal Row of Carpal Bones

2. What is the joint type?

Technically Sellar Synovial but ligaments prevent from moving

3. What ligaments are involved?

-articular capsule

24

First Carpometacarpal Joint

1. What are the bones involved?

2. What is the joint type?

3. What ligaments are involved?

1. What are the bones involved?

Trapezium to 1st metacarpal bone

2. What is the joint type?

Sellar Synovial (more flexible)

3. What ligaments are involved?

-Fibrous capsule (separate from the other Carpometacarpal joints)

-Palmar Carpometacarpal Ligaments

-Dorsal Carpometacarpal Ligaments

 

25

2nd - 5th Carpometacarpal Joints

1. What are the bones involved?

2. What is the joint type?

3. What ligaments are involved?

 

1. What are the bones involved?

Distal Carpal Row to 2nd-5th metacarapl 

2. What is the joint type?

Planar Synovial

3. What ligaments are involved?

-Palmar Carpometacarpal Ligaments

-Dorsal Carpometacarpal Ligaments

-Pisometacarpal Ligament (Pisiform to the 5th Metacarpal)

-Radiate Carpal Ligament (fanning out from the Capitate)

26

Intermetacarpal Joints

1. What are the bones involved?

2. What is the joint type?

3. What ligaments are involved?

1. What are the bones involved?

Between fingers (in palm) - 4 of them

2. What is the joint type?

Planar Synovial

3. What ligaments are involved?

-Palmar Intermetacarpal Ligaments

-Dorsal Intermetacarpal Ligaments

-Interosseus Intermetacarpal Ligament (runs between the metacarpals)

27

Metacarpophalangeal Joints

1. What are the bones involved?

2. What is the joint type?

3. What ligaments are involved?

1. What are the bones involved?

Between carpal bones and phalanges

2. What is the joint type?

Condylar Synovial

3. What ligaments are involved?

-Medial Collateral Ligaments of the Metacarpophalangeal Joint (of a given digit)

-Lateral Collateral Ligaments of the Metacarpophalangeal Joint (of a given digit)

-Palmar Ligament of the Metacarpophalangeal Joint (of a given digit) [acts as a floor for tendons]

-Deep / Superficial Transverse Ligaments (join the heads of the metacarpals together)

28

What ligament is sprained in Bull Rider's Thumb?

What may avulse in severe cases?

Lateral Collateral Ligament of the Metacarpophalangeal Joint of the First Digit (lateral side of thumb)

The lateral part of the Proximal Phalanx of the First Digit

29

What causes Skier's/Gamekeeper's Thumb?

Laxity or rupture of both Medial and Lateral Collateral Ligaments of the Metacarpophalangial Joint of the First Digit 

-both ligaments of thumb injured

30

Interphalangeal Joints

1. What are the bones involved?

2. What is the joint type?

3. What ligaments are involved?

1. What are the bones involved?

Thumb: 1st Interphalangeal Joint (b/t proximal and distal phalanges)

2nd-5th Metacarpals

1st-4th Proximal Interphalangeal Joint (b/t proximal and intermediate phalanges)

1st-4th Distal Interphalangeal Joint (b/t intermediate and distal phalanges) 

2. What is the joint type?

Ginglymous/Hinge Joint

3. What ligaments are involved?

-Medial/Lateral Collateral Ligaments of the Proximal/Distal Interphalangeal Joint (of a given digit)

-Palmar Ligament of the Proximal/Distal Interphalangeal Joint (of a given digit)

The first digit only has one interphalangeal joint, so its ligaments are just named ... Ligament of the Interphalangeal Joint of the First Digit (no Distal/Proximal)