Action of Drugs on Synapses The chemicals in?drugs?can have a major impact on the?functioning of the brain and nervous system Some prescription drugs can have a?beneficial effect?on those suffering...
Imbalances in Brain Chemicals Leading to Diseases Neurotransmitters?are chemicals that transmit nerve impulses across synapses Some disorders and diseases are linked to an?imbalance of neurotransmi...
Habituation Animals must?respond to changes?in their?external?and?internal?environments in order to survive Changes in the environment, or?stimuli?(singular?stimulus) are detected by specialised?re...
The Role of Animal Models in Research The human brain is very?difficult to study The brain is?complex?and its tissues are?delicate?meaning that it is?easy to cause damage?during a surgical examinat...
Development of the Visual Cortex The visual cortex is the?region of the cerebral cortex?in which?visual information?is processed The cerebral cortex is the outer layer of the?cerebrum Soon after bi...
Studying the Brain Our understanding of brain structure and function is limited The brain is incredibly?complex?and?very delicate Different regions work together to bring about brain function so ca...
Brain: Structure & Function The brain, alongside the spinal cord, is part of the?central nervous system?(CNS) The brain is made of billions?of?interconnected?neurones Within the brain are?diffe...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 復習筆記：4.1.2 Naming Organic Compounds Naming Organic Compounds Names of compounds The names of organic compounds have two parts: the prefix or stem...
EDEXCEL IGCSE CHEMISTRY: DOUBLE SCIENCE 復習筆記：4.2.2 Combustion Fuels & Combustion The combustion of fossil fuels is the major source of atmospheric pollution Fossil fuels include:?co...
