Glossary
Glossary for SD805_2
Browse the glossary using this index
Special | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | ALL
5 |
|---|
5-HT5-hydroxytryptamine (serotonin). Biologically active amine occurring as a hormone in plants and as both a hormone and a neurotransmitter in animals. Like acetylcholine, adrenalin and noradrenalin, serotonin acts on many organs of the body, either directly or by a neuronal reflex. | |
‘ |
|---|
‘nothing but’The idea that something is nothing but its component parts and can be explained simply in terms of them, e.g. that humans are ‘nothing but’ a collection of physical components. | |
Β |
|---|
β-amyloidAlso referred to as amyloid- β (abbreviated to Aβ). It is a peptide derived from the larger amyloid precursor protein (APP) and is the principal component of amyloid fibrils. The specific role of β-amyloid is unclear, but it is thought that amyloid deposits may cause neurons to degenerate. Amyloid deposits also occur in the brains of older Down’s syndrome patients. | |