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RSSNociceptor
A nociceptor is a sensory
receptor that sends signals
that cause the perception of
pain in response to
potentially damaging
stimulus. Nociceptors are
the nerve endings
responsible for nociception,
... > full story
Myelin
Myelin is an electrically
insulating phospholipid
layer that surrounds the
axons of many neurons. It is
an outgrowth of glial cells:
Schwann cells supply the
myelin for peripheral
neurons while
... > full story
Analgesic
An analgesic (colloquially
known as painkillers) is any
member of the diverse group
of drugs used to relieve
pain and to achieve
analgesia. This derives from
Greek an-, "without", and
-algia, "pain". Analgesic
... > full story
Phantom limb
Phantom limb is a phantom
sensation in amputated or
missing limbs. A phantom
sensation is a feeling that
a missing limb is still
attached to the body and is
moving appropriately with
other body parts. ... > full story
Browse Reference Articles
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Peripheral vision
Peripheral vision is a part of vision that occurs outside the very center of gaze. There is in actuality a very broad set of non-central points in the field of view that is included in the notion of ... > more -
Optic nerve
The optic nerve is the nerve that transmits visual information from the retina to the brain. The optic nerve is composed of retinal ganglion cell axons and support cells. It leaves the orbit (eye) ... > more -
Chronic pain
Chronic pain was originally defined as pain that has lasted 6 months or longer. It is now defined as pain that persists longer than the normal course of time associated with a particular type of ... > more -
Carpal tunnel
In the human wrist there is a sheath of tough connective tissue which envelopes and protects one nerve and tendons, which attach muscles to the wrist and hand bones. The carpal tunnel is the space ... > more -
Pupillary reflex
In medicine, the pupillary reflex or pupillary light reflex, is the reduction of pupil size in response to light. It is a normal response and dependent on the function of the optic nerves and ... > more -
Peripheral nervous system
The peripheral nervous system or PNS, is part of the nervous system, and consists of the nerves and neurons that reside or extend outside the central nervous system (the brain and spinal cord) to ... > more -
Sciatic nerve
The sciatic nerve is a large nerve that runs down the lower limb. It is the longest single nerve in the body. Pain caused by a compressed or damaged sciatic nerve is called sciatica. Arising from ... > more -
Spinal cord
The spinal cord is a part of the vertebrate nervous system that is enclosed in and protected by the vertebral column (it passes through the spinal canal). It consists of nerve cells. The cord conveys ... > more
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