Neurological Disorders #1 Flashcards
Central Nervous System
contains the brain and spinal cord.
Peripheral Nervous System
includes all the nerves out-side the brain and spinal cord.
Meninges
protective membranes that cover the brain and spinal cord
White Matter
portions of the nervous system that appear white in color because they are composed of myelinated axons.
Grey Matter
portions of the nervous system that appear grey in color because they are composed of neuron cell bodies and unmyelinated axons.
Sensation
immediate and basic experience generated as sensory stimuli fall on our sensory systems .
Perception
the higher-order process of integrating, recognizing, and interpreting complex patterns of sensations.
Aphasia
deficit in the ability to use or comprehend language caused by brain damage
Neuron
cells of the nervous system that are specialized for the reception, conduction and trans-mission of electrochemical signals
Dendrites
branched projection(s) of a neuron that functions as the receptive area of a neuron.
Axon
projection of a neuron that functions to conduct electrical impulses away from a neuron’s cell body
Nodes of Ranvier
gaps between adjacent myelin segments on an axon
Demyelination
the loss of myelin insulating neurons
Congenital Analgesia
disease in which patients do not sense pain
Diabetic Neuropathy
disorder in which nerves of the body are damaged due to high blood sugar levels resulting from diabetes