Clavicle

Question 1

Where on the skeleton is the Clavicle located

Answer 1

Shoulder/Pectoral girdle

Appendicular Skeleton

Question 2

The Sternal end of the Clavicle forms the only Joint that does What

Answer 2

Attaches upper extremities of appendicular skeleton to the axial skeleton

Question 3

Describe the Shape of the Clavicle

Answer 3

“Lazy S”

Question 4

Where, in relation to the 1st Rib, is it found

Answer 4

Anterior to it

Question 5

How to Differentiate between its Two Ends

Answer 5

Medial/Sternal end is rounder
Acromial/Lateral end is Flatter
*Think “Flateral”

Question 6

How to Differentiate between Inferior and Superior surfaces

Answer 6

ALL landmarks are found on the Underside (Inferior Surface) or ends of the bone

Question 7

How to differentiate between Left and Right

Answer 7

From Anterior View:
Medial Curvature = Convex
Lateral Curvature = Concave

Question 8

Type of Bone

Answer 8

Long Bone

*No Medullary Cavity

Question 9

Which Joints are Associated with the Clavicle (2)

Answer 9

1) Sternoclavicular

2) Acromioclavicular

Question 10

Describe the Articulating Surfaces of the Sternoclavicular Joint

Answer 10

Between Sternal End of Clavicle and Clavicular Notch of Manubrium of Sternum

Question 11

Describe the Articulating Surfaces of the Acromioclavicular Joint

Answer 11

Acromial (Lateral) End of Clavicle and Acromion Process of Scapula

Question 12

Structural Classification of the Sternoclavicular Jt

Answer 12

Synovial Double Planar/Gliding (Pseudo Saddle) w/ Articular Disc

Question 13

Functional Classification of Sternoclavicular Jt

Answer 13

Diarthrotic (biaxial/triaxial)

Question 14

Structural Classification of Acromioclavicular Jt

Answer 14

Synovial Planar/Gliding

Question 15

Functional Classification of Acromioclavicular Jt

Answer 15

Diarthrotic (uniaxial)

Question 16

Muscle Actions Associated w/ Clavicle (5)

Answer 16

1) Abductors of Humerus (Deltoid and Pectoralis Major)
2) Scapula Elevators (Trapezius)
3) Cervical (Neck) Flexors (Sternocleidomastoid)
4) Depresses Hyoid Bone (Sternohyoid)
5) Clavicular Depressors (Subclavius)

Question 17

Which Bones makes up the Shoulder/Pectoral Girdle

Answer 17

Scapula
Clavicle
Humerus

Question 18

What’s different about the Clavicle on Male Skeletons

Answer 18

Rougher and more Curved

Question 19

What are the 7 Palpable Landmarks on the Clavicle

Answer 19

1) Sternal End
2) Acromial End
3) Anterior Surface
4) Posterior Surface
5) Inferior Surface
6) Superior Surface
7) Shaft

Question 20

Function of Sternal End

Answer 20

MA: Sternocleidomastoid and Pectoralis Major

Question 21

Function of Acromial End

Answer 21

MA: Anterior Deltoid and Upper Trapezius

Question 22

Function of Anterior Surface

Answer 22

MA: Anterior Deltoid and Pectoralis Major

Question 23

Function of Posterior Surface

Answer 23

MA: Upper Trapezius

Question 24

Function of Inferior Surface

Answer 24

MA: Subclavius

Ligament Attachments at Conoid Tubercle and Costal Tubercle

Question 25

Function of Superior Surface

Answer 25

MA at Sternal End (Sternocleidomastoid)

Question 26

Function of Shaft

Answer 26

Body of Bone - NO Distinct Function

Question 27

What are the 6 Non-Palpable Landmarks of the Clavicle

Answer 27

1) Sternal Facet
2) Costal Tubercle/Impression for Costoclavicular Ligament
3) Subclavian Groove
4) Conoid Tubercle
5) Trapezoid Line
6) Acromial Facet

Question 28

Function of Sternal Facet

Answer 28

Joint surface: Sternoclavicular Joint

Question 29

Function of Costal Tubercle

Answer 29

Ligament Attachment: Costoclavicular Ligament (from Costal Cartilage of 1st Rib)

Question 30

Function of Subclavian Groove

Answer 30

MA: Subclavius

Question 31

Function of Conoid Tubercle

Answer 31

LA: Conoid Aspect of Coracoclavicular Ligament

Question 32

Function of Trapezoid Line

Answer 32

LA: Trapezoid Aspect of Coracoclavicular Ligament

Question 33

Function of Acromial Facet

Answer 33

Joint Surface: Acromioclavicular Joint