#B5.2.1
explain how the components of the nervous system work together to enable it to function, including sensory receptors, sensory neurons, the CNS, motor neurons and effectors
#B5.2.2
explain how the structures of nerve cells and synapses relate to their functions
Learners are not expected to explain nerve impulse transmission in terms of membrane potentials
#B5.2.3
a) explain how the structure of a reflex arc, including the relay neuron, is related to its function
b) describe practical investigations into reflex actions
PAG6
#B5.2.4
describe the structure and function of the brain and roles of the cerebral cortex (intelligence, memory, language and consciousness), cerebellum (conscious movement) and brain stem (regulation of heart and breathing rate)
#B5.2.5
explain some of the difficulties of investigating brain function