Sensory neuron
Sensory neurons are nerve
cells within the nervous
system responsible for
converting external stimuli
from the organism's
environment into internal
electrical impulses. For
example, some sensory
... > full story
Central nervous system
The central nervous system
(CNS) represents the largest
part of the nervous system,
including the brain and the
spinal cord. Together with
the peripheral nervous
system, it has a fundamental
role in the control of
... > full story
Occipital lobe
The occipital lobe is the
visual processing center of
the mammalian brain. The
primary visual cortex is
Brodmann area 17, located in
the interior portion of the
occipital lobe at the
calcarine sulcus and
... > full story
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 the 31
... > full story
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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 -
Visual system
The visual system is the part of the nervous system which allows organisms to see. It interprets the information from visible light to build a representation of the world surrounding the body. The ... > more -
Nociceptor
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, ... > more -
Temporal lobe
The temporal lobes are part of the cerebrum. They lie at the sides of the brain, beneath the lateral or Sylvian fissure. Seen in profile, the human brain looks something like a boxing glove. The ... > more -
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 ... > more -
Motor neuron
In vertebrates, motor neurons (also called motoneurons) are efferent neurons that originate in the spinal cord and synapse with muscle fibers to facilitate muscle contraction and with muscle spindles ... > more
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