1.6E Vestibular & Kinesthetic Sense

Vestibular Sense

Sensory system maintaining balance, spatial orientation, and posture by detecting head position changes relative to gravity; located in inner ear, distinct from limb movement awareness.

Semicircular Canals

Three fluid-filled tubular structures in inner ear oriented perpendicular to each other; detect rotational head movements when fluid shifts bend hair cells signaling direction and speed.

Kinesthesis (Proprioception)

Awareness of body part positions and movements through muscle, joint, and tendon receptors; enables coordinated motion without visual monitoring, often called muscle memory.

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