Intermediate Breast Anatomy Quiz

Q1. What is the approximate vertical extent of the adult female breast on the thoracic wall?

• Second to sixth ribs
• Tenth rib to iliac crest
• First to second ribs
• Seventh to twelfth ribs

Q2. What is the approximate transverse extent of the breast?

• From the vertebral column to the sternum
• From the clavicle to the iliac crest
• From the lateral border of the sternum toward the midaxillary line
• From the acromion to the elbow

Q3. Approximately how many glandular lobes are commonly described in the breast?

• 30 to 40
• 50 to 60
• 2 to 4
• 15 to 20

Q4. Which lymph nodes receive most lymphatic drainage from the breast?

• Popliteal lymph nodes
• Axillary lymph nodes
• Superficial inguinal lymph nodes
• Submental lymph nodes

Q5. Lymph from the medial portion of the breast can drain to which lymph nodes?

• Occipital lymph nodes
• Parasternal lymph nodes
• Popliteal lymph nodes
• Deep inguinal lymph nodes

Q6. Which artery is an important source of blood to the lateral portion of the breast?

• Radial artery
• Inferior mesenteric artery
• Anterior tibial artery
• Lateral thoracic artery

Q7. Which arterial source contributes importantly to the medial breast?

• Common iliac artery
• Internal thoracic artery
• Femoral artery
• Middle cerebral artery

Q8. Which nerves provide most of the sensory innervation to the breast?

• Intercostal nerves
• Femoral nerves
• Sciatic nerves
• Obturator nerves

Q9. Which nerve is particularly important for sensation from the axillary region and upper lateral breast?

• Intercostobrachial nerve
• Median nerve
• Phrenic nerve
• Vagus nerve

Q10. Why is the retromammary space anatomically important?

• It contains the lung apex
• It permits mobility of the breast over the underlying fascia
• It separates the two pleural cavities
• It forms the axillary artery