<prompt> Sensory receptors with delayed recovery and least coverage-Pacinion corpuscleRuffini endingsMeissner corpuscleMerkels disc  <response>: Ans. is d i.e., Merkels disc Receptive field of sensory receptorsi Smallest receptive field Least coverage: Merkels disc, Meissner corpusclesii Wide receptive field; Pacinian corpuscle, Ruffini end organ Ruffini corpuscle Adaptation of sensory receptorsi Rapidly adapting rapid recovery - Meissners corpuscles, Pacinian corpuscles.ii Slowly adapting delayed recovery - Merkels disc, Ruffini s end organs Thus answer of the question is Markels disc - Small receptive field least coverage and rapid adaptation rapid recovery. 