Which term describes opposite sides of the body/brain?

Which term describes opposite sides of the body/brain?

• A. Contralateral
• B. Ipsilateral
• C. Rostral
• D. Dorsal

Answer: (A)

Contralateral describes opposite sides of the body or brain. This term captures the idea that one side of the brain or one structure is associated with the opposite side of the body in many motor and sensory pathways. For example, the left hemisphere often controls movements on the right side, illustrating contralateral organization. The other terms describe orientation rather than laterality: rostral means toward the nose/head, and dorsal means toward the back or upper surface. Since they don’t denote opposite sides, they don’t fit the description.

Contralateral describes opposite sides of the body or brain. This term captures the idea that one side of the brain or one structure is associated with the opposite side of the body in many motor and sensory pathways. For example, the left hemisphere often controls movements on the right side, illustrating contralateral organization. The other terms describe orientation rather than laterality: rostral means toward the nose/head, and dorsal means toward the back or upper surface. Since they don’t denote opposite sides, they don’t fit the description.