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Dysesthesia is an unpleasant, abnormal sense of touch. Its etymology comes from the Greek word "dys," meaning "bad," and "aesthesis," which means "sensation" (abnormal sensation). It often presents as pain [ 1] but may also present as an inappropriate, but not discomforting, sensation. It is caused by lesions of the nervous system, peripheral ...
Cutaneous receptor. A cutaneous receptor is the type of sensory receptor found in the skin ( the dermis or epidermis ). They are a part of the somatosensory system. Cutaneous receptors include mechanoreceptors (pressure or distortion), nociceptors (pain), and thermoreceptors (temperature). [1]
The somatosensory system is a subset of the sensory nervous system responsible for the perception of touch. Touch is a somatic sense in contrast to the special senses of sight, smell, taste, and hearing and balance. The sense of touch in perceiving the environment uses special sensory receptors in the skin called cutaneous receptors.
Hypoesthesia is one of the negative sensory symptoms associated with cutaneous sensory disorder (CSD). In this condition, patients have abnormal disagreeable skin sensations that can be due to increased nervous system activity (stinging, itching or burning) or decreased nervous system activity (numbness or hypoesthesia).
In addition to aches, you may notice a lack of strength and reduced range of motion in the affected area. ️ Ease the aches: Strengthening exercises through physical therapy, wearing braces to ...
Merkel cells (shown in blue) are located in the basal epidermal layer of the skin. Merkel cells, also known as Merkel–Ranvier cells or tactile epithelial cells, are oval-shaped mechanoreceptors essential for light touch sensation and found in the skin of vertebrates. They are abundant in highly sensitive skin like that of the fingertips in ...
Cutaneous innervation refers to an area of the skin which is supplied by a specific cutaneous nerve . Dermatomes are similar; however, a dermatome only specifies the area served by a spinal nerve. In some cases, the dermatome is less specific (when a spinal nerve is the source for more than one cutaneous nerve), and in other cases it is more ...
Paresthesia is an abnormal sensation of the skin (tingling, pricking, chilling, burning, numbness) with no apparent physical cause. [ 1] Paresthesia may be transient or chronic, and may have many possible underlying causes. [ 1] Paresthesias are usually painless and can occur anywhere on the body, but most commonly occur in the arms and legs.