Surface Anatomy and Clinical Landmarks for Procedures MCQs

Anatomy · 27 free questions with answers & explanations.

1. For lumbar puncture, the needle is typically inserted at the L4–L5 or L3–L4 interspace. The surface landmark used to identify the L4 vertebral level is:
2. During central venous cannulation of the internal jugular vein using the anterior triangle approach, the needle is inserted at the apex of a triangle formed by which structures?
3. The femoral nerve block at the inguinal ligament level — the nerve lies lateral to the femoral artery in the femoral triangle. The correct mnemonic for the lateral-to-medial order of structures under the inguinal ligament is:
4. For a lumbar puncture, the needle is inserted in the midline at the level of the intercristal (supracristal) plane. This plane corresponds to which intervertebral space in most adults?
5. For internal jugular vein (IJV) central venous cannulation using the central approach, the needle is directed toward which surface landmark?
6. During needle thoracocentesis for tension pneumothorax, the needle is inserted in the second intercostal space, midclavicular line. The needle is placed at the upper border of the third rib because:
7. The femoral artery is located at the midinguinal point (midpoint between ASIS and pubic symphysis). Just medial to the femoral artery in the femoral triangle lies the femoral vein. The structure lying lateral to the femoral artery within the femoral sheath is:
8. When performing a lumbar puncture in an adult, the needle is inserted between which vertebral levels to safely enter the subarachnoid space without risk of spinal cord injury?
9. The femoral artery can be accessed for cardiac catheterization just below the inguinal ligament. What is its position in the femoral triangle relative to the femoral vein and femoral nerve?
10. Thoracocentesis for pleural effusion is typically performed in which intercostal space, and on which aspect of the rib to avoid neurovascular bundle injury?
11. During internal jugular vein (IJV) cannulation via the central approach, the needle is inserted at the apex of which triangle, aiming toward the ipsilateral nipple?
12. When performing a lumbar puncture, the spinal needle is inserted in the L3-L4 or L4-L5 interspace. The surface landmark for the L4 spinous process is:
13. For femoral artery access (e.g., cardiac catheterisation), the femoral artery is accessed below the inguinal ligament. The inguinal ligament is the surface marking between which two bony landmarks?
14. To perform a safe lumbar puncture, the needle is inserted in the midline at the level of the iliac crests. This level corresponds to which interspace and why is it safe?
15. For internal jugular vein central venous cannulation at the apex of the anterior triangle, the needle is directed at 30 degrees to the skin towards the ipsilateral nipple. Which structure is most at risk of inadvertent puncture with this approach if the needle is inserted too laterally?
16. When performing a femoral nerve block (3-in-1 block), the femoral artery is palpated just below the inguinal ligament. The femoral nerve lies at which position relative to the femoral artery within the femoral triangle?
17. During internal jugular vein (IJV) central venous cannulation using the central approach, the needle is inserted at the apex of which triangle, directed towards the ipsilateral nipple?
18. For a lumbar puncture, the needle is inserted in the midline at the L3–L4 or L4–L5 interspinous space. The surface landmark used to identify the L4 spinous process is:
19. During a fascia iliaca compartment block, the needle must pass through two distinct fascial layers before reaching the plane where local anesthetic is deposited to anesthetize the femoral, lateral femoral cutaneous, and obturator nerves. Which two layers are these?
20. When performing a lumbar puncture, the needle is inserted in the midline at the level of the intercristal line (Tuffier's line). This line most reliably corresponds to which vertebral level?
21. During a needle thoracocentesis for pneumothorax in emergency, the needle is inserted in the second intercostal space at the midclavicular line. To avoid injury to the intercostal neurovascular bundle, the needle should pass:
22. For a femoral nerve block, the needle is inserted just lateral to the femoral artery at the level of the inguinal ligament. Using the mnemonic NAVL (medial to lateral), the correct order of structures at the femoral triangle at this level is:
23. During an intercostal nerve block, the needle is inserted at the lower border of the rib to access the neurovascular bundle. What is the correct arrangement of structures in the costal groove from superior to inferior?
24. When performing a lumbar puncture at the L3–L4 interspace, which clinical landmark is used to identify this level?
25. During placement of a central venous catheter via the internal jugular vein, the needle is directed at which landmark using the anterior approach?
26. McBurney's point — the point of maximum tenderness in acute appendicitis — is located at:
27. For femoral vein cannulation, the femoral vein is accessed in the femoral triangle. Its surface marking from the midpoint of the inguinal ligament is: