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Label the Sternum, Clavicle & Ribs - Test Your Skills!

Ready for clavicle labeling & rib cage labeling? Dive into the quiz!

Difficulty: Moderate
2-5mins
Learning OutcomesCheat Sheet
Paper art illustration for anatomy quiz on sternum, clavicle, rib cage on sky blue background

Ready to challenge your knowledge of thoracic anatomy? In this interactive quiz, you'll label the sternum, identify each part through sternum labeling, master clavicle labeling, and complete rib cage labeling tasks that test precision and speed. Learn to spot landmarks like the manubrium, its body, and the xiphoid process while strengthening your spatial understanding of the thoracic cage. Perfect for med students, anatomy buffs, or anyone eager to label sternum structures confidently, our quiz delivers instant feedback, handy mnemonics, and comparative insights. After you ace this challenge, continue your journey with our anatomy thorax quiz or broaden your scope in the bone identification quiz . Dive in now, prove your expertise, and spark your curiosity with every click!

Which is the uppermost part of the sternum?
Manubrium
Body
Xiphoid process
Sternal angle
The manubrium is the broad, upper portion of the sternum that articulates with the clavicles and the first pair of ribs. It forms the superior boundary of the thoracic cage and provides attachment for several muscles. The body lies below it, and the xiphoid process is the smallest, most inferior part. Wikipedia: Sternum
What is the name of the lowest part of the sternum?
Xiphoid process
Manubrium
Sternal angle
Body
The xiphoid process is the smallest, most inferior segment of the sternum and remains cartilaginous until middle age. It serves as an important landmark for CPR chest compressions. The manubrium is the top section, and the sternal angle is the junction between the manubrium and body. Wikipedia: Xiphoid process
Which ribs directly articulate with the sternum?
True ribs
False ribs
Floating ribs
Cervical ribs
True ribs are ribs 1 through 7 and articulate directly with the sternum via their costal cartilages. False ribs (8–10) connect indirectly through cartilage of the rib above, while floating ribs (11–12) do not reach the sternum at all. Cervical ribs are a rare supernumerary set. Wikipedia: True ribs
How many pairs of true ribs are there?
7 pairs
5 pairs
2 pairs
12 pairs
There are seven pairs of true ribs. Each of these ribs connects directly to the sternum through its own costal cartilage. Ribs 8–10 are false ribs, and ribs 11–12 are floating ribs. Wikipedia: True ribs
What is the anatomical term for the joint at the sternal angle?
Manubriosternal joint
Sternoclavicular joint
Xiphisternal joint
Costochondral joint
The manubriosternal joint, also known as the sternal angle, is the fibrocartilaginous junction between the manubrium and body of the sternum. It is a palpable landmark at the level of the second rib. The sternoclavicular joint connects clavicle to sternum, and the xiphisternal joint is between the body and xiphoid process. Wikipedia: Sternal angle
Which ribs are considered false ribs?
8th to 10th ribs
1st to 7th ribs
11th to 12th ribs
All ribs attaching to sternum
False ribs are ribs 8, 9, and 10, which do not attach directly to the sternum but connect via the cartilage of the rib above. True ribs (1–7) attach directly, while floating ribs (11–12) do not attach to the sternum at all. Wikipedia: False ribs
What articulation connects the clavicle to the sternum?
Sternoclavicular joint
Acromioclavicular joint
Suture
Costovertebral joint
The sternoclavicular joint is a saddle-type synovial joint where the medial end of the clavicle articulates with the manubrium of the sternum. It is the only bony attachment of the upper limb to the axial skeleton. The acromioclavicular joint connects the clavicle to the scapula. Wikipedia: Sternoclavicular joint
On the clavicle, which end is paddle-shaped and articulates with the acromion?
Acromial end
Sternal end
Conoid tubercle
Costal tuberosity
The acromial end of the clavicle is flattened and articulates with the acromion of the scapula at the acromioclavicular joint. The sternal end is rounded and fits into the manubrium of the sternum. Conoid tubercle and costal tuberosity are bony landmarks on the undersurface. Wikipedia: Clavicle
Which part of a typical rib articulates with the transverse process of the vertebra?
Tubercle
Head
Angle
Shaft
The tubercle of a typical rib has an articular facet that fits against the transverse process of the corresponding vertebra, forming the costotransverse joint. The head of the rib articulates with vertebral bodies. The angle and shaft are distal features. Wikipedia: Rib structure
What feature on the internal surface of the rib protects the intercostal vessels and nerve?
Costal groove
Costal facet
Superior border
Tubercle
The costal groove is a longitudinal depression on the inferior internal surface of the rib shaft that shelters the intercostal vessels and nerve bundle. It is clinically important during procedures to avoid nerve damage. Costal facets and tubercles are external articulating surfaces. Wikipedia: Costal groove
Which structure marks the level of the second costal cartilage?
Sternal angle
Xiphisternal junction
Inferior angle of scapula
Clavicular notch
The sternal angle, or angle of Louis, is the palpable ridge where the manubrium meets the body of the sternum and corresponds to the second costal cartilage and the T4–T5 vertebral level. The xiphisternal junction marks the ninth thoracic vertebra. Wikipedia: Sternal angle
The body of the sternum is also known as which part?
Gladiolus
Processus xiphoideus
Manubrium
Corpus sterni
The central portion of the sternum is historically called the gladiolus and is also referred to as the body of the sternum. The xiphoid process (processus xiphoideus) lies below it, and the manubrium is above. Corpus sterni is another term but archaic. Wikipedia: Sternum structure
The clavicle transmits forces from the upper limb to which bone?
Sternum
Scapula
Humerus
First rib
The clavicle acts as a strut between the scapula and the manubrium of the sternum, transmitting mechanical forces from the upper limb to the axial skeleton. It does not directly attach to the humerus or first rib. Wikipedia: Clavicle
At which costal margin does the xiphoid process lie?
7th costal cartilage
1st costal cartilage
5th costal cartilage
10th costal cartilage
The xiphoid process articulates with the body of the sternum at the level of the 7th costal cartilage. This point is just above the epigastric region. The first costal cartilage meets the manubrium, and the fifth is midway along the body. Wikipedia: Sternum
Which ribs do not articulate with the transverse processes of vertebrae?
Floating ribs (11th and 12th)
False ribs
True ribs
All ribs articulate
Floating ribs (11th and 12th) have no neck or tubercle and thus do not form costotransverse joints with the transverse processes of vertebrae. True and false ribs do articulate with vertebrae via their tubercles. Wikipedia: Floating ribs
What is the name of the line running vertically along the front surface of the sternum indicating the midline?
Midsternal line
Parasternal line
Midclavicular line
Anterior axillary line
The midsternal line is an imaginary vertical line down the center of the sternum on the anterior thoracic wall. It serves as a landmark in physical exams. The parasternal line runs just lateral to the sternum, while the midclavicular and anterior axillary lines are more lateral. Wikipedia: Thoracic landmarks
Where is the costal tuberosity, the rough area for the costoclavicular ligament, located?
Inferior surface of the medial clavicle
Superior surface of the lateral clavicle
Inferior surface of the acromial end
Superior surface of the manubrium
The costal tuberosity is a roughened area on the inferior surface of the medial end of the clavicle where the costoclavicular ligament attaches. This ligament anchors the clavicle to the first rib's costal cartilage. It is distinct from the acromial and sternal articular surfaces. Wikipedia: Clavicle ligaments
Which of the following ribs has only one articular facet on its head?
First rib
Second rib
Third rib
Tenth rib
The first rib has a single articular facet on its head that articulates only with the body of the first thoracic vertebra. Most other ribs have two facets for articulation with the bodies of two adjacent vertebrae. Wikipedia: First rib
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Study Outcomes

  1. Identify Sternum Structures -

    Recall and name the three main parts of the sternum (manubrium, body, xiphoid process) with pinpoint accuracy.

  2. Label the Clavicle -

    Pinpoint the anatomical landmarks of the clavicle and describe its articulations with the sternum and scapula.

  3. Differentiate Rib Cage Components -

    Distinguish between true, false, and floating ribs and correctly label their positions in a rib cage diagram.

  4. Apply Sternum Labeling Techniques -

    Practice sternum labeling through interactive exercises to accurately identify each part on diverse anatomical diagrams.

  5. Assess Chest Bone Mastery -

    Evaluate your knowledge of sternum, clavicle, and rib cage anatomy through instant quiz feedback to reinforce key concepts.

Cheat Sheet

  1. Landmarks of the Sternum -

    Understand the three main regions - manubrium, body, and xiphoid process - as described in Gray's Anatomy. When you label the sternum, start at the jugular notch on the manubrium and work downward to ensure accuracy. A useful mnemonic is "My Body Xylophone" to memorize Manubrium, Body, Xiphoid.

  2. Sternal Angle and Clinical Relevance -

    The sternal angle (Angle of Louis) is the junction between the manubrium and body, located at the second rib level according to the American College of Surgeons. Recognizing this landmark is crucial for accurate sternum labeling and safe needle insertion in emergency procedures. Palpate the ridge to confirm rib cage labeling before counting ribs.

  3. Clavicle Articulations -

    In clavicle labeling, note the medial sternal end's saddle-shaped facet for the sternum and the lateral acromial end's flattened surface for the scapula, as outlined by the University of Michigan Anatomy Department. Remember "S-shape meets S-ternum" to avoid mix-ups during labeling. This orientation helps you connect clavicle labeling with sternum and shoulder girdle anatomy.

  4. Rib Cage Classification -

    Divide the ribs into true (1 - 7), false (8 - 10), and floating (11 - 12) as detailed in the Journal of Orthopaedic Research. True ribs attach directly to the sternum via costal cartilage, while false ribs share a common cartilage link and floating ribs don't meet the sternum at all. This breakdown simplifies rib cage labeling and helps chart costal cartilage connections.

  5. Mnemonic for Complete Sternum Labeling -

    Use "My Body's Xipoid Exits" to recall Manubrium, Body, Xiphoid order and avoid spelling slip-ups found in some textbooks. Cross-reference with an anatomy atlas (e.g., Netter's) to confirm each label's position in three planes. This technique streamlines sternum labeling and boosts confidence in quizzes or practical exams.

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