Sensory Receptors

what kind of sensory receptors are exteroreceptors? This means that they receive stimuli from external environment via skin & subQ tissue. They provide info about pain, temperature, light touch, & pressure

superficial

what kind of sensory receptors are proprioceptors? This means that they receive stimuli from muscles, tendons, ligaments, & fascia. They provide info about position sense & awareness of joints at rest, mvmt awareness, & vibration

deep

what are examples of superficial sensory receptors?

Pacinian corpuscles, free nerve endings, hair follicle ending, Merkel’s discs, grafini ending, Meisner’s corpuscles

what are examples of deep sensory receptors?

GTOs, muscle spindles (important role in motor learning)

Sensory receptors can also be divided into categories based upon their

structural design & type of stimulus to which they respond

What sensations require info from both superficial & deep sensory mechanisms as well as intact function of cortical sensory association areas?

combined cortical sensations

what is the ability to identify something by only touch?

stereognosis

what is the ability to perceive distance between 2 points applied to skin simultaneously?

2 point discrimination

what is the ability to recognize different weight?

Barognosis

what is the ability to recognize a written form on skin?

Graphesthesia

what is the ability to localize where a touch sensation is on your skin?

Tactile localization