Addiction and neural ageing
Addiction and neural ageing

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Saturday, 25 Jun 2022, 06:29
Site: Open Learning
Course: Addiction and neural ageing (SD805_2)
Glossary: Glossary
C

cell membrane

The boundary of a cell; a double layer of phospholipid molecules associated with other lipids (including cholesterol) and a variety of membrane proteins.

cell respiration

(cellular respiration) The complete oxidative catabolism of glucose (C6H12O6)to carbon dioxide and water according to the following equation, which summarizes a long sequence of reactions in which large amounts of energy are released (mostly as ATP):

C6H12O6 + 6O2arrow 6CO2 + 6H2O + energy

central nervous system (CNS)

The part of the nervous system that consists of the brain and spinal cord.

cephalic

Concerning the brain, or mediated via the brain.

cerebrum

The term cerebrum is often used as a collective name for the left and right cerebral hemispheres of the brain.

charge

A property of some objects that is responsible for electrostatic interactions (i.e. attraction or repulsion) between them. There are two types: positive and negative. Like charges repel and unlike charges attract each other. A stream of moving negative charges (electrons) through an electrical conductor produces an electric current.

chemical messenger

A chemical that serves a role of communication. In its broad definition, the term includes hormones. In its more narrow definition, it is synonymous with a neurotransmitter.

chemical reaction

A process in which a substance (or substances) is transformed to a different substance (or substances) by a rearrangement of the atoms and their accompanying electrons.

chemical synapse

A synapse at which communication is effected by a chemical that is released from a neuron and occupies receptors at the second cell.

chemical transmitter

A chemical that is released from a neuron and occupies receptors at a second cell, thereby effecting communication from the first cell to the second.

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