MUSCLE PHYSIOLOGY

Detailed explanation-1: -The two-point discrimination test is used to assess if the patient is able to identify two close points on a small area of skin, and how fine the ability to discriminate this are. It is a measure of tactile agnosia, or the inability to recognize these two points despite intact cutaneous sensation and proprioception.

Detailed explanation-2: -Two-point discrimination (2PD) is the ability to discern that two nearby objects touching the skin are truly two distinct points, not one. It is often tested with two sharp points during a neurological examination and is assumed to reflect how finely innervated an area of skin is.

Detailed explanation-3: -Two factors determine two-point discrimination: density of sensory receptors, and size of neuronal receptive fields. The higher the number of sensory receptors in a region, the more accurate the sensory perception of the region.

Detailed explanation-4: -Tactile discrimination is the ability to differentiate information through the sense of touch. The somatosensory system is the nervous system pathway that is responsible for this essential survival ability used in adaptation. There are various types of tactile discrimination.

Detailed explanation-5: -An area of skin with a greater density of touch receptors is more sensitive to touch and can discriminate between two points closer together than an area with a lower density of touch receptors.