Clavicle anatomy quiz

The quiz covers the structure, joints, muscles, vessels, and nerves of the clavicle in systemic anatomy.

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1. To which division of the skeleton does the clavicle belong?

Skeleton of the free upper limb

The clavicle (clavicula), together with the scapula, forms part of the pectoral girdle (cingulum membri superioris).
Pectoral girdle

The clavicle (clavicula), together with the scapula, forms part of the pectoral girdle (cingulum membri superioris).
Thorax

The clavicle (clavicula), together with the scapula, forms part of the pectoral girdle (cingulum membri superioris).
Skeleton of the neck

The clavicle (clavicula), together with the scapula, forms part of the pectoral girdle (cingulum membri superioris).
I find it difficult to answer

The clavicle (clavicula), together with the scapula, forms part of the pectoral girdle (cingulum membri superioris).

2. What shape does the clavicle comprise when viewed from above?

Straight

The clavicle is S-shaped: the medial part is convex anteriorly, whereas the lateral part is concave anteriorly, providing the bone with spring-like properties.
S-shaped

The clavicle is S-shaped: the medial part is convex anteriorly, whereas the lateral part is concave anteriorly, providing the bone with spring-like properties.
Arched anteriorly

The clavicle is S-shaped: the medial part is convex anteriorly, whereas the lateral part is concave anteriorly, providing the bone with spring-like properties.
Spirally twisted

The clavicle is S-shaped: the medial part is convex anteriorly, whereas the lateral part is concave anteriorly, providing the bone with spring-like properties.
I find it difficult to answer

The clavicle is S-shaped: the medial part is convex anteriorly, whereas the lateral part is concave anteriorly, providing the bone with spring-like properties.

3. Which end of the clavicle articulates with the manubrium of the sternum?

Acromial end

The sternal (medial) end of the clavicle (extremitas sternalis) forms the sternoclavicular joint with the clavicular notch of the manubrium of the sternum.
Sternal end

The sternal (medial) end of the clavicle (extremitas sternalis) forms the sternoclavicular joint with the clavicular notch of the manubrium of the sternum.
Diaphyseal segment

The sternal (medial) end of the clavicle (extremitas sternalis) forms the sternoclavicular joint with the clavicular notch of the manubrium of the sternum.
Inferior surface

The sternal (medial) end of the clavicle (extremitas sternalis) forms the sternoclavicular joint with the clavicular notch of the manubrium of the sternum.
I find it difficult to answer

The sternal (medial) end of the clavicle (extremitas sternalis) forms the sternoclavicular joint with the clavicular notch of the manubrium of the sternum.

4. Which bony landmark is located on the inferior surface of the acromial end of the clavicle and serves as an attachment site for ligaments?

Conoid tubercle and trapezoid line

The conoid tubercle (tuberculum conoideum) and trapezoid line (linea trapezoidea) are located on the inferior surface of the lateral end of the clavicle and serve as attachment sites for the coracoclavicular ligament.
Groove for subclavian muscle

The conoid tubercle (tuberculum conoideum) and trapezoid line (linea trapezoidea) are located on the inferior surface of the lateral end of the clavicle and serve as attachment sites for the coracoclavicular ligament.
Clavicular fossa

The conoid tubercle (tuberculum conoideum) and trapezoid line (linea trapezoidea) are located on the inferior surface of the lateral end of the clavicle and serve as attachment sites for the coracoclavicular ligament.
Subclavian fossa

The conoid tubercle (tuberculum conoideum) and trapezoid line (linea trapezoidea) are located on the inferior surface of the lateral end of the clavicle and serve as attachment sites for the coracoclavicular ligament.
I find it difficult to answer

The conoid tubercle (tuberculum conoideum) and trapezoid line (linea trapezoidea) are located on the inferior surface of the lateral end of the clavicle and serve as attachment sites for the coracoclavicular ligament.

5. Where on the clavicle is the impression for the costoclavicular ligament (impressio ligamenti costoclavicularis) located?

On the superior surface of the sternal end

The impression for the costoclavicular ligament (impressio ligamenti costoclavicularis) is located on the inferior surface of the medial end of the clavicle and serves as the attachment site for the ligament of the same name.
On the inferior surface of the sternal end

The impression for the costoclavicular ligament (impressio ligamenti costoclavicularis) is located on the inferior surface of the medial end of the clavicle and serves as the attachment site for the ligament of the same name.
On the inferior surface of the acromial end

The impression for the costoclavicular ligament (impressio ligamenti costoclavicularis) is located on the inferior surface of the medial end of the clavicle and serves as the attachment site for the ligament of the same name.
On the anterior surface of the body of the clavicle

The impression for the costoclavicular ligament (impressio ligamenti costoclavicularis) is located on the inferior surface of the medial end of the clavicle and serves as the attachment site for the ligament of the same name.
I find it difficult to answer

The impression for the costoclavicular ligament (impressio ligamenti costoclavicularis) is located on the inferior surface of the medial end of the clavicle and serves as the attachment site for the ligament of the same name.

6. What cross-sectional shape does the body of the clavicle comprise in its lateral third?

Rounded

The lateral third of the shaft of the clavicle is flattened in the anteroposterior direction (flattened cross-sectional shape), whereas the medial two-thirds have a triangular cross-sectional shape.
Triangular

The lateral third of the shaft of the clavicle is flattened in the anteroposterior direction (flattened cross-sectional shape), whereas the medial two-thirds have a triangular cross-sectional shape.
Flattened

The lateral third of the shaft of the clavicle is flattened in the anteroposterior direction (flattened cross-sectional shape), whereas the medial two-thirds have a triangular cross-sectional shape.
Quadrangular

The lateral third of the shaft of the clavicle is flattened in the anteroposterior direction (flattened cross-sectional shape), whereas the medial two-thirds have a triangular cross-sectional shape.
I find it difficult to answer

The lateral third of the shaft of the clavicle is flattened in the anteroposterior direction (flattened cross-sectional shape), whereas the medial two-thirds have a triangular cross-sectional shape.

7. Which joint is formed by the acromial end of the clavicle?

Sternoclavicular joint

The acromial end of the clavicle (extremitas acromialis) articulates with the acromion of the scapula, forming the Acromioclavicular joint (articulatio acromioclavicularis).
Acromioclavicular joint

The acromial end of the clavicle (extremitas acromialis) articulates with the acromion of the scapula, forming the Acromioclavicular joint (articulatio acromioclavicularis).
Coracoclavicular joint

The acromial end of the clavicle (extremitas acromialis) articulates with the acromion of the scapula, forming the Acromioclavicular joint (articulatio acromioclavicularis).
Glenohumeral joint (right)

The acromial end of the clavicle (extremitas acromialis) articulates with the acromion of the scapula, forming the Acromioclavicular joint (articulatio acromioclavicularis).
I find it difficult to answer

The acromial end of the clavicle (extremitas acromialis) articulates with the acromion of the scapula, forming the Acromioclavicular joint (articulatio acromioclavicularis).

8. Which type of articular surface is characteristic of the Sternoclavicular joint?

Ball-and-socket

The Sternoclavicular joint (articulatio sternoclavicularis) is saddle-shaped (sellar) with respect to the shape of its articular surfaces, allowing movement in several planes.
Ellipsoidal

The Sternoclavicular joint (articulatio sternoclavicularis) is saddle-shaped (sellar) with respect to the shape of its articular surfaces, allowing movement in several planes.
Saddle-shaped

The Sternoclavicular joint (articulatio sternoclavicularis) is saddle-shaped (sellar) with respect to the shape of its articular surfaces, allowing movement in several planes.
Flat

The Sternoclavicular joint (articulatio sternoclavicularis) is saddle-shaped (sellar) with respect to the shape of its articular surfaces, allowing movement in several planes.
I find it difficult to answer

The Sternoclavicular joint (articulatio sternoclavicularis) is saddle-shaped (sellar) with respect to the shape of its articular surfaces, allowing movement in several planes.

9. Which structure divides the cavity of the Sternoclavicular joint into two compartments?

Glenoid labrum

The cavity of the Sternoclavicular joint contains an articular disc (discus articularis), which completely divides the joint cavity into two compartments and compensates for the incongruity of the articular surfaces.
Articular disc

The cavity of the Sternoclavicular joint contains an articular disc (discus articularis), which completely divides the joint cavity into two compartments and compensates for the incongruity of the articular surfaces.
Articular meniscus

The cavity of the Sternoclavicular joint contains an articular disc (discus articularis), which completely divides the joint cavity into two compartments and compensates for the incongruity of the articular surfaces.
Synovial fold

The cavity of the Sternoclavicular joint contains an articular disc (discus articularis), which completely divides the joint cavity into two compartments and compensates for the incongruity of the articular surfaces.
I find it difficult to answer

The cavity of the Sternoclavicular joint contains an articular disc (discus articularis), which completely divides the joint cavity into two compartments and compensates for the incongruity of the articular surfaces.

10. Which muscle attaches to the groove on the inferior surface of the body of the clavicle?

Pectoralis major muscle

The subclavius muscle (m. subclavius) originates from the first rib and its cartilage and attaches to the sulcus musculi subclavii, the groove on the inferior surface of the body of the clavicle.
Subclavius muscle

The subclavius muscle (m. subclavius) originates from the first rib and its cartilage and attaches to the sulcus musculi subclavii, the groove on the inferior surface of the body of the clavicle.
Deltoid muscle

The subclavius muscle (m. subclavius) originates from the first rib and its cartilage and attaches to the sulcus musculi subclavii, the groove on the inferior surface of the body of the clavicle.
Sternocleidomastoid muscle

The subclavius muscle (m. subclavius) originates from the first rib and its cartilage and attaches to the sulcus musculi subclavii, the groove on the inferior surface of the body of the clavicle.
I find it difficult to answer

The subclavius muscle (m. subclavius) originates from the first rib and its cartilage and attaches to the sulcus musculi subclavii, the groove on the inferior surface of the body of the clavicle.

11. To which surface of the medial part of the clavicle does the sternocleidomastoid muscle attach?

To the inferior surface

The clavicular head of the sternocleidomastoid muscle (m. sternocleidomastoideus) attaches to the superior surface (facies superior) of the medial part of the clavicle.
To the posterior surface

The clavicular head of the sternocleidomastoid muscle (m. sternocleidomastoideus) attaches to the superior surface (facies superior) of the medial part of the clavicle.
To the superior surface

The clavicular head of the sternocleidomastoid muscle (m. sternocleidomastoideus) attaches to the superior surface (facies superior) of the medial part of the clavicle.
To the anterior surface

The clavicular head of the sternocleidomastoid muscle (m. sternocleidomastoideus) attaches to the superior surface (facies superior) of the medial part of the clavicle.
I find it difficult to answer

The clavicular head of the sternocleidomastoid muscle (m. sternocleidomastoideus) attaches to the superior surface (facies superior) of the medial part of the clavicle.

12. Which muscle attaches to the deltoid tuberosity (tuberositas deltoidea) of the clavicle?

Trapezius muscle

The clavicular fibers of the deltoid muscle (m. deltoideus) attach to the deltoid tuberosity (tuberositas deltoidea) on the anterior border of the lateral third of the clavicle.
Deltoid muscle

The clavicular fibers of the deltoid muscle (m. deltoideus) attach to the deltoid tuberosity (tuberositas deltoidea) on the anterior border of the lateral third of the clavicle.
Pectoralis minor muscle

The clavicular fibers of the deltoid muscle (m. deltoideus) attach to the deltoid tuberosity (tuberositas deltoidea) on the anterior border of the lateral third of the clavicle.
Supraspinatus muscle

The clavicular fibers of the deltoid muscle (m. deltoideus) attach to the deltoid tuberosity (tuberositas deltoidea) on the anterior border of the lateral third of the clavicle.
I find it difficult to answer

The clavicular fibers of the deltoid muscle (m. deltoideus) attach to the deltoid tuberosity (tuberositas deltoidea) on the anterior border of the lateral third of the clavicle.

13. The trapezius muscle attaches to the clavicle in the region of the:

Medial third along the superior border

The trapezius muscle (m. trapezius) attaches to the posterior border of the lateral third of the clavicle (margo posterior), producing retraction and elevation of the pectoral girdle.
Entire length along the inferior border

The trapezius muscle (m. trapezius) attaches to the posterior border of the lateral third of the clavicle (margo posterior), producing retraction and elevation of the pectoral girdle.
Lateral third along the posterior border

The trapezius muscle (m. trapezius) attaches to the posterior border of the lateral third of the clavicle (margo posterior), producing retraction and elevation of the pectoral girdle.
Sternal end along the anterior surface

The trapezius muscle (m. trapezius) attaches to the posterior border of the lateral third of the clavicle (margo posterior), producing retraction and elevation of the pectoral girdle.
I find it difficult to answer

The trapezius muscle (m. trapezius) attaches to the posterior border of the lateral third of the clavicle (margo posterior), producing retraction and elevation of the pectoral girdle.

14. Which major vein passes immediately posterior to the medial end of the clavicle?

External jugular vein

The Subclavian vein (v. subclavia) passes posterior to the medial part of the clavicle in the subclavian groove and joins the internal jugular vein to form the brachiocephalic vein (Pirogov's angle).
Subclavian vein

The Subclavian vein (v. subclavia) passes posterior to the medial part of the clavicle in the subclavian groove and joins the internal jugular vein to form the brachiocephalic vein (Pirogov's angle).
Internal jugular vein

The Subclavian vein (v. subclavia) passes posterior to the medial part of the clavicle in the subclavian groove and joins the internal jugular vein to form the brachiocephalic vein (Pirogov's angle).
Brachiocephalic vein

The Subclavian vein (v. subclavia) passes posterior to the medial part of the clavicle in the subclavian groove and joins the internal jugular vein to form the brachiocephalic vein (Pirogov's angle).
I find it difficult to answer

The Subclavian vein (v. subclavia) passes posterior to the medial part of the clavicle in the subclavian groove and joins the internal jugular vein to form the brachiocephalic vein (Pirogov's angle).

15. Which nerve of the Brachial plexus is located posterior to the clavicle and innervates the subclavius muscle?

Subscapular nerve

The nerve to subclavius (n. subclavius, C5–C6) arises from the Superior trunk of brachial plexus and innervates the subclavius muscle, which attaches to the clavicle.
Nerve to subclavius (n. subclavius)

The nerve to subclavius (n. subclavius, C5–C6) arises from the Superior trunk of brachial plexus and innervates the subclavius muscle, which attaches to the clavicle.
Long thoracic nerve

The nerve to subclavius (n. subclavius, C5–C6) arises from the Superior trunk of brachial plexus and innervates the subclavius muscle, which attaches to the clavicle.
Lateral pectoral nerve

The nerve to subclavius (n. subclavius, C5–C6) arises from the Superior trunk of brachial plexus and innervates the subclavius muscle, which attaches to the clavicle.
I find it difficult to answer

The nerve to subclavius (n. subclavius, C5–C6) arises from the Superior trunk of brachial plexus and innervates the subclavius muscle, which attaches to the clavicle.

16. Which source predominantly supplies blood to the clavicle in the diaphyseal region?

Branches of the Subclavian artery

The diaphysis of the clavicle is supplied by nutrient arteries (aa. nutrientes), which are branches of the thoracoacromial artery (a. thoracoacromialis), itself a branch of the Axillary artery.
Nutrient arteries from the thoracoacromial artery

The diaphysis of the clavicle is supplied by nutrient arteries (aa. nutrientes), which are branches of the thoracoacromial artery (a. thoracoacromialis), itself a branch of the Axillary artery.
Branches of the Axillary artery

The diaphysis of the clavicle is supplied by nutrient arteries (aa. nutrientes), which are branches of the thoracoacromial artery (a. thoracoacromialis), itself a branch of the Axillary artery.
Branches of the Internal thoracic artery

The diaphysis of the clavicle is supplied by nutrient arteries (aa. nutrientes), which are branches of the thoracoacromial artery (a. thoracoacromialis), itself a branch of the Axillary artery.
I find it difficult to answer

The diaphysis of the clavicle is supplied by nutrient arteries (aa. nutrientes), which are branches of the thoracoacromial artery (a. thoracoacromialis), itself a branch of the Axillary artery.

17. Which ligament directly connects the clavicle to the coracoid process of the scapula?

Acromioclavicular ligament

The coracoclavicular ligament (lig. coracoclaviculare) connects the coracoid process of the scapula to the inferior surface of the acromial end of the clavicle and consists of trapezoid and conoid parts.
Coracoclavicular ligament

The coracoclavicular ligament (lig. coracoclaviculare) connects the coracoid process of the scapula to the inferior surface of the acromial end of the clavicle and consists of trapezoid and conoid parts.
Costoclavicular ligament

The coracoclavicular ligament (lig. coracoclaviculare) connects the coracoid process of the scapula to the inferior surface of the acromial end of the clavicle and consists of trapezoid and conoid parts.
Interclavicular ligament

The coracoclavicular ligament (lig. coracoclaviculare) connects the coracoid process of the scapula to the inferior surface of the acromial end of the clavicle and consists of trapezoid and conoid parts.
I find it difficult to answer

The coracoclavicular ligament (lig. coracoclaviculare) connects the coracoid process of the scapula to the inferior surface of the acromial end of the clavicle and consists of trapezoid and conoid parts.

18. Which ligament connects the medial ends of the two clavicles?

Costoclavicular ligament

The Interclavicular ligament (lig. interclaviculare) extends between the sternal ends of both clavicles above the jugular notch of the sternum, reinforcing the Sternoclavicular joint superiorly.
Interclavicular ligament

The Interclavicular ligament (lig. interclaviculare) extends between the sternal ends of both clavicles above the jugular notch of the sternum, reinforcing the Sternoclavicular joint superiorly.
Sternoclavicular ligament

The Interclavicular ligament (lig. interclaviculare) extends between the sternal ends of both clavicles above the jugular notch of the sternum, reinforcing the Sternoclavicular joint superiorly.
Anterior sternoclavicular ligament

The Interclavicular ligament (lig. interclaviculare) extends between the sternal ends of both clavicles above the jugular notch of the sternum, reinforcing the Sternoclavicular joint superiorly.
I find it difficult to answer

The Interclavicular ligament (lig. interclaviculare) extends between the sternal ends of both clavicles above the jugular notch of the sternum, reinforcing the Sternoclavicular joint superiorly.

19. Which movement of the pectoral girdle is IMPOSSIBLE in isolation at the Sternoclavicular joint?

Elevation and depression of the pectoral girdle

The Sternoclavicular joint permits elevation–depression, protraction–retraction, and axial rotation of the clavicle; however, isolated flexion–extension through a range exceeding 90° is impossible because of its saddle shape and ligamentous apparatus.
Forward and backward movement (protraction and retraction)

The Sternoclavicular joint permits elevation–depression, protraction–retraction, and axial rotation of the clavicle; however, isolated flexion–extension through a range exceeding 90° is impossible because of its saddle shape and ligamentous apparatus.
Rotation of the clavicle around its longitudinal axis

The Sternoclavicular joint permits elevation–depression, protraction–retraction, and axial rotation of the clavicle; however, isolated flexion–extension through a range exceeding 90° is impossible because of its saddle shape and ligamentous apparatus.
Flexion and extension in the sagittal plane through a range exceeding 90°

The Sternoclavicular joint permits elevation–depression, protraction–retraction, and axial rotation of the clavicle; however, isolated flexion–extension through a range exceeding 90° is impossible because of its saddle shape and ligamentous apparatus.
I find it difficult to answer

The Sternoclavicular joint permits elevation–depression, protraction–retraction, and axial rotation of the clavicle; however, isolated flexion–extension through a range exceeding 90° is impossible because of its saddle shape and ligamentous apparatus.

20. The pectoralis major muscle attaches to the clavicle in the region of the:

Entire length of the inferior border

The clavicular part of the pectoralis major muscle (pars clavicularis m. pectoralis majoris) originates from the medial half of the anterior surface (facies anterior) of the clavicle.
Medial half of the anterior surface

The clavicular part of the pectoralis major muscle (pars clavicularis m. pectoralis majoris) originates from the medial half of the anterior surface (facies anterior) of the clavicle.
Lateral third of the superior surface

The clavicular part of the pectoralis major muscle (pars clavicularis m. pectoralis majoris) originates from the medial half of the anterior surface (facies anterior) of the clavicle.
Acromial end along the inferior surface

The clavicular part of the pectoralis major muscle (pars clavicularis m. pectoralis majoris) originates from the medial half of the anterior surface (facies anterior) of the clavicle.
I find it difficult to answer

The clavicular part of the pectoralis major muscle (pars clavicularis m. pectoralis majoris) originates from the medial half of the anterior surface (facies anterior) of the clavicle.