sensitivity, sensitiveness, sensibility - (physiology) responsiveness to external stimuli; "sensitivity to pain"

proprioception - the ability to sense the position and location and orientation and movement of the body and its parts

somatic sense, somatic sensory system, somatosensory system, somaesthesis, somatatesthesis, somesthesis, somaesthesia, somatesthesia, somesthesia - the faculty of bodily perception; sensory systems associated with the body; includes skin senses and proprioception and the internal organs