Musculoskeletal “upper Extremities”

Question 1

What is the clavicle classification as to location?
Axial vs appendicular

Answer 1

Appendicular (extremities)
Axial (skull to vertebrae) center

Question 2

How many bones axial and appendicular?

Answer 2

Axial: 80
Appendicular: 126

206

Question 3

Which of the following bones classified as short bone?

First metacarpal
Calcaneus
Middle phalanx
Distal phalanx

Answer 3

Cube and spongy bones
Carpal and tarsal including calcaneus

Question 4

usually curved with thin layers of compact bone around spongy bone

Answer 4

Flat bone (Thin and flattened)
Skull, sternum and ribs

Question 5

Have shaft with heads at both ends

Answer 5

Long bones (femur and humerus)
Longer than wide and compact

Question 6

Generally cube shape and spongy

Answer 6

Short bone
Carpals and tarsal

Question 7

Irregular shape and do not fit into other bone classification.
Give example

Answer 7

Irregular bone
Vertebrae and hips

Question 8

Ends of the long bone and mostly spongy

Answer 8

Epiphysis

Question 9

Distance between (shaft) and composed of compact bones

Answer 9

Diaphysis

Question 10

cartilage that consists of hyaline cartilage covering epiphysis

Answer 10

Articular cartilage

Question 11

Cavity of the shaft containing yellow marrow and red marrow

Answer 11

Medullary cavity of diaphysis

Question 12

Germ layer of origin of bones?

Answer 12

Mesoderm

Question 13

Immovable joints a.k.a

Answer 13

Synarthroses (fibrous)

Question 14

Slightly movable joint a.k.a

Answer 14

Amphiarthroses (cartilaginous)

Question 15

Freely movable joint a.k.a

Answer 15

Diarthroses (synovial)

Question 16

Most commonly fractured bone in the body

Answer 16

Clavicle

Question 17

The clavicle’s medial two third is concave or convex forward?

Answer 17

Convex forward

Question 18

Most common mechanism of injury of fracture of the clavicle?

Answer 18

Outstretched hand and fall on the shoulder

Question 19

Weakest point of clavicle?

Answer 19

Junction of the middle and outer thirds

Question 20

Distal fragment is pulled ___ by ___. While medial part is pulled where___ by ____?

Answer 20

Pulled medially and forward by adductors (pectoralis major)

Medial part tilted upward by SCM

Question 21

First long bone to ossify and the kast one to complete ossification

Answer 21

Clavicle

Question 22

Only long bone to be ossified intramembranously

Answer 22

Clavicle

Question 23

Acromioclavicular joint is a type of plane or saddle?

Sternoclavicular is a type of plane or saddle joint?

Answer 23

Plane
Saddle

Question 24

Movements of sternoclavicular (saddle joint) PRED

Answer 24

Protraction, depression, elevation and depression

Question 25

A shoulder separation injury separates what joint and ligament?

Answer 25

Acromioclavicular joint Coracovlavicular ligament

Question 26

What structure is compressed in thoracic outlet syndrome?

Answer 26

Subclavian vessels and lower trunk if brachial plexus

Question 27

With lower trunk brachial plexus compression. What will the affectation of the lesion? Radial, medial or ulnar?

Answer 27

Ulnar (medial side of the forearm causing wasting of small hand)

Question 28

Subclavian vessel compression causes what

Answer 28

Claudication presenting with inability to sustain arm elevation and close and open movement due to lack of blood supply

Question 29

Parts of scapula

Answer 29

Coracoid process Acromion Spine Glenoid cavity

Question 30

Structures attached to coracoid process (4) C-PBB

Answer 30

Coracoclavicular ligament Short heads of biceps brachii Coracobrachialis Pectoralis minor

Question 31

Supraglenoid and infraglenoid tubercle

Answer 31

Long head of biceps brachi Long head if triceps brachi

Question 32

What muscle is injured or paralyzed in scapular winging and what nerve of brachial plexus? (Roots or trunk or cord or branches)

Answer 32

Serratus anterior by long thoracic nerve (C5-C7) a nerve root

Question 33

In scapular winging, does it move lateral or medial? Posterior or anterior?

Answer 33

Laterally and psoteriorly

Question 34

How to elicit scapular winging?

Answer 34

Push up on the wall or boxer punch test

Question 35

Unable to abduct the arm horizontally? What muscle?

Answer 35

Serratus anterior (overhead movement of shoulder joint)

Question 36

Most common direction of shoulder dislocation?

Answer 36

Anteroinferior

Question 37

Muscle responsible for protraction of scapula and upward rotation/abduction of arm above horizontal plane? a.k.a boxer’s muscle

Answer 37

Serratus anterior (serrated muscle lateral to the ribs)