Nervous tissue is made up of neutrons and neutroglial cells. Which of the following statements about these two cells is/are false ?
(i) Neuroglia make up more than one-half the volume of neutral tissue in our body
(ii) Neuroglia protect and support neurons
(iii) When a neuron is suitaly stimulated, an electrical disturbance is generated which swiftly travels along its cytosol
(iv) Arrival of the disturbance at the neuron's endings triggers stimulation or inhibition of adjacent neurons or other cells.

Options

A. (i) and (iv)
B. (ii) and (iii)
C. (iii) only
D. (iv) only

Explanation

To determine which statements about neurons and neuroglial cells are false, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Statement (i): Neuroglia make up more than one-half the volume of neural tissue in our body.**
- This statement is **true**. Neuroglial cells (or glial cells) indeed make up a significant portion of the volume of nervous tissue, often cited as more than half.

2. **Statement (ii): Neuroglia protect and support neurons.**
- This statement is also **true**. One of the primary functions of neuroglial cells is to provide support, protection, and nourishment to neurons.

3. **Statement (iii): When a neuron is suitably stimulated, an electrical disturbance is generated which swiftly travels along its cytosol.**
- This statement is **false**. While it is true that neurons generate electrical signals (action potentials) when stimulated, these signals do not travel along the cytosol. Instead, they propagate along the axon, which is surrounded by myelin sheaths that facilitate faster transmission.

4. **Statement (iv): Arrival of the disturbance at the neuron's endings triggers stimulation or inhibition of adjacent neurons or other cells.**
- This statement is **true**. The arrival of an action potential at the axon terminals does indeed trigger the release of neurotransmitters, which can stimulate or inhibit adjacent neurons or other target cells.

### Conclusion:
The false statement among the options provided is **(iii)**.