Question

A diagram showing the axon terminal and synapse is given. Identify correctly at least two of A - D.

• A. C - Neurotransmitter; D - $C{a}^{++}$
• B. B - Synaptic connection; D - $K^{+}$
• C. A - Receptor; C - Synaptic vesicles
• D. A - Neurotransmitter; B- Synaptic cleft

Answer 1

The correct option is C A - Receptor; C - Synaptic vesicles

An axon terminal contains various neurotransmitters that are released in the small gap between two communicating neurons. This gap is called a synapse.

The neuron that sends nerve impulses by releasing neurotransmitters via the axon terminal at the synapse is called a presynaptic neuron.

The synaptic vesicles (represented by C) are present inside the axon terminals and they contain the neurotransmitters.

They get attached to the pre-synaptic membrane and release the neurotransmitter in the synaptic cleft (represented by B) which gets attached to the receptor (represented by A) present on post-synaptic membrane.

So, the correct answer is option A.