Question

What is the functional region of contact between two neurons called?

• A. Axon
• B. Dendrites
• C. Nissl's granules
• D. Synapse

Hint:

Synapse:
• Junction between neurons
• Transfers nerve impulses
• Uses neurotransmitters

Answer 1

The Correct Option is D

Concept:
The nervous system is made up of specialized cells called neurons. A neuron consists of:
• Cell body
• Dendrites
• Axon Communication between neurons occurs through a junction called: \[ \boxed{\text{Synapse}} \] At the synapse:
• Nerve impulses are transmitted
• Neurotransmitters carry signals

Step 1: Understand neuron communication.
Neurons do not directly touch each other. A tiny gap exists between:
• Axon terminal of one neuron
• Dendrite/cell body of next neuron This functional junction is called synapse.

Step 2: Understand role of synapse.
Functions:
• Transfers nerve impulses
• Maintains one-way conduction
• Helps nervous coordination

Step 3: Analyze all options carefully.
Option (A): Axon
Long conducting part of neuron. Incorrect. Option (B): Dendrites
Receive impulses. Incorrect. Option (C): Nissl's granules
Granules in neuron cell body. Incorrect. Option (D): Synapse
Functional junction between neurons. Correct.

Step 4: Select the correct answer.
Therefore, the functional region of contact between two neurons is: \[ \boxed{\text{Synapse}} \] Hence, \[ \boxed{(4)\ \text{Synapse}} \]