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Multiple Choice
Which anatomical structure is the noticeable bump on the outside of the ankle?
A
Lateral malleolus
B
Navicular tuberosity
C
Calcaneus
D
Medial malleolus
Verified step by step guidance
1
Step 1: Begin by identifying the anatomical location of the ankle. The ankle is a joint that connects the lower leg to the foot and is composed of several bones, ligaments, and tendons.
Step 2: Understand the anatomical structures listed in the options. The lateral malleolus is the bony prominence on the outer side of the ankle, formed by the distal end of the fibula. The medial malleolus is the bony prominence on the inner side of the ankle, formed by the distal end of the tibia. The navicular tuberosity is a bony projection on the navicular bone in the midfoot, and the calcaneus is the heel bone.
Step 3: Focus on the term 'noticeable bump on the outside of the ankle.' This phrase specifically refers to the lateral side of the ankle, which is associated with the fibula.
Step 4: Eliminate options that do not match the description. The medial malleolus is on the inner side of the ankle, so it does not fit the description. The navicular tuberosity and calcaneus are located in the foot, not directly on the outer side of the ankle.
Step 5: Conclude that the anatomical structure described as the noticeable bump on the outside of the ankle is the lateral malleolus, formed by the distal end of the fibula.