Advanced Clavicle Quiz

Q1. After a typical fracture through the middle third of the clavicle, which muscle tends to elevate the medial fragment?

• Sternocleidomastoid
• Subclavius
• Deltoid
• Pectoralis minor

Q2. Why does the shoulder tend to drop after a complete clavicular fracture?

• The scapula becomes fixed to the vertebral column
• The clavicular strut supporting the shoulder is disrupted
• The humerus becomes fused to the sternum
• The first rib moves superiorly into the shoulder

Q3. Which structures are of greatest concern deep to a displaced clavicular fracture?

• Popliteal vessels and tibial nerve
• Subclavian vessels and brachial plexus
• Femoral vessels and lumbar plexus
• Facial vessels and trigeminal nerve

Q4. Which part of the lung is closely related to the medial clavicular region and root of the neck?

• Base of the lung
• Inferior lingula
• Apex of the lung
• Horizontal fissure only

Q5. The clavicle divides which surface region into superior and inferior fossae?

• The posterior abdominal wall
• The popliteal fossa
• The perineum
• The root of the neck and upper anterior thoracic region

Q6. Which ligament provides an important strong connection between the lateral clavicle and coracoid process?

• Superior transverse scapular ligament
• Coracoclavicular ligament
• Transverse humeral ligament
• Coracoacromial ligament

Q7. A prominent step deformity at the lateral end of the clavicle following trauma most strongly suggests injury involving which joint?

• First sternocostal joint
• Sternoclavicular joint
• Glenohumeral joint
• Acromioclavicular joint

Q8. Which anatomical feature makes the clavicle particularly useful as a surface landmark for procedures involving the subclavian region?

• Its superficial position and predictable relationship to deeper neurovascular structures
• Its position posterior to the scapula
• Its location entirely within the thoracic cavity
• Its direct articulation with the humeral head

Q9. Which statement correctly describes the curvature of the clavicle?

• The entire clavicle is convex anteriorly
• The medial two thirds are concave anteriorly and the lateral third is convex anteriorly
• The medial two thirds are convex anteriorly and the lateral third is concave anteriorly
• The clavicle has no consistent curvature

Q10. Which statement best integrates the surface anatomy and functional significance of the clavicle?

• It is a posterior thoracic bone that articulates directly with the vertebral column
• It is a palpable S shaped strut connecting the upper limb to the axial skeleton and protecting important deeper structures
• It is a midline thoracic bone that has no muscular attachments
• It is a deep bone of the arm that forms the elbow joint