Final answer:
Bulbous (Ruffini) corpuscles and tactile (Merkel) discs are the types of sensory receptors that are encapsulated nerve endings. Bulbous corpuscles detect skin stretch, joint activity, and warmth, while tactile discs respond to light touch and are abundant in the fingertips and lips.
Step-by-step explanation:
The types of sensory receptors that are encapsulated nerve endings are bulbous (Ruffini) corpuscles and tactile (Merkel) discs.
Bulbous (Ruffini) corpuscles are encapsulated receptors that detect skin stretch, joint activity, and warmth. They are slowly adapting and are found in both glabrous and hairy skin.
Tactile (Merkel) discs are unencapsulated, slowly adapting mechanoreceptors that respond to light touch. They are found in the upper layers of skin near the base of the epidermis, particularly in the fingertips and lips. They are responsible for discriminating touch and are densely distributed in these areas.