Question

A typical synapse in the cns consists of a presynaptic neuron and a postsynaptic neuron. True or False

Answer 1

Answer: True

Explanation: The typical synapse in the Central Nervous System (CNS) consists of 3 parts namely:

1) 'The Presynaptic Neuron' formed by the terminal button of an axon

2) 'The Postsynaptic Neuron' made up of segments of dendrite or cell body

3) 'The Synaptic Cleft' which is the space between the presynaptic neuron and postsynaptic neuron.

The 'Central Nervous system (CNS)' is made up of the brain and spinal cord.

A 'Synapse' is a junction between two nerve cells. It transfers information from one cell to another either by 'diffusion' or through 'neurotransmission'. The transfer of information can be from nerve to nerve or nerve to muscle.

The 'Presynaptic Neuron' is a nerve cell that fires the neurotransmitter. In other words, it delivers messages (neurotransmission) across the synapse. The 'Postsynapse' is the receiver of the neurotransmission which is the message.