Question

The junction between the two nerve cells is known as

• A. synapse
• B. node
• C. isthmus
• D. synaptic buttons

Answer 1

The correct option is A

synapse

The correct option is A.

Explanation of the correct option :

1. Synapses are the nerve endings of neurons where the neural impulses are transmitted between each neuron.
2. They contain a pre-synaptic ending, a synaptic cleft, and a post-synaptic ending.
3. The neurotransmitters thus produced in the neuron, cross the synaptic cleft and bind to receptors in the postsynaptic ending.
4. They then stimulate an action potential in the postsynaptic neuron.

Explanation of the incorrect option:

Option B:

The Nodes of Ranvier are present only in the myelinated neuron to save energy for the neuron.

Option C:

Isthmus is the white matter area located between the peri-insular sulcus and lateral ventricle.

Option D:

Synaptic buttons also known as axon terminals are the swellings on the axon endings where synapse is present.

Final answer: The junction between the two nerve cells is known as synapse.