Question

your forearm is made up of which two bones?
○ tibia/fibula
○ radius/ulna
○ femur/fibula
○ humerus/radius

Explanation:

To determine the bones of the forearm, we recall anatomical knowledge: the forearm (antebrachium) consists of the radius and ulna. Let's analyze the options:

• tibia/fibula: These are leg bones (lower limb), not forearm.
• radius/ulna: Matches the forearm's bone composition.
• femur/fibula: Femur is a thigh bone, fibula is a leg bone—incorrect for forearm.
• humerus/radius: Humerus is an arm (upper arm) bone, radius is forearm—but paired with humerus (wrong), forearm has radius + ulna.

Answer:

C. radius/ulna (Note: Assuming the options are labeled as A: tibia/fibula, B: femur/fibula, C: radius/ulna, D: humerus/radius; the correct option is the one with "radius/ulna". If original labels differ, adjust, but the content "radius/ulna" is the answer.)