Which sensory system monitors the positions of the various parts of the body and involves joints, muscles, tendons, receptors in skin, ears, and eyes?

• A. Kinesthetic system
• B. Visual system
• C. Auditory system
• D. Vestibular system

Answer: (A)

This question targets proprioception, the body's sense of where its parts are and how they’re moving. The kinesthetic (proprioceptive) system uses sensors in muscles (muscle spindles), tendons (Golgi tendon organs), and joints to detect stretch, tension, and joint angles. Skin receptors contribute additional feedback about contact and pressure, helping refine awareness of limb position. The inner ear’s vestibular system supports balance and head position, while vision provides external spatial reference. The kinesthetic system is the primary pathway for sensing limb position and movement, which is why it’s the best answer. The vestibular and visual systems aid this sense, but they don’t alone determine body position, and the auditory system isn’t involved in sensing position.