Neuron-The Structural and Functional Unit of Neural System

What is neuron?

Which among the following form the part of a synapse?

In the given image, label the parts (i), (ii) and (iii).

The synaptic vesicles are present near the presynaptic membrane of a synaptic junction. 

Which of the following granules are present in neuron and their work is to synthesise

In which type of neuron, two adjacent myelin sheaths are present, separated by gaps, and these gaps are called

Which of the following cells do not divide because they do not have

A nerve impulse is transmitted from one neuron to another through junctions called _____.

Which of the following type of neurons are found in the 'retina' of humans

The transport of which neutrotransmitter is interfered by cocaine?

Nissl's granules are irregular masses of ribosomes and RER and are characteristically found in

Nerve cells do not divide because they do not have

During synaptic transmission of nerve impulses, the neurotransmitter$\left(\mathrm{P}\right)$ is released from synaptic vesicles by the action of ions$\left(\mathrm{Q}\right)$. Choose the correct $\mathrm{P}$ and $\mathrm{Q}$ .

Action potential is

Chemical transmission in synapse occurs due to

Sheath covering axon of a nerve is referred to as 

The cyton of neurons has all the following, except

Nissl's granules are found in

Which of the following statements about electrical synapse are correct?

$\left(\mathrm{i}\right)$  At electrical synapses, the membranes of pre-synaptic and post-synaptic neurons are in very close contact.

$\left(\mathrm{ii}\right)$  During electrical synapse, the chemical flows directly from one neuron to other across the synapse.

$\left(\mathrm{iii}\right)$ The transmission of impulse across electrical synapse is faster than that of chemical synapse.

$\left(\mathrm{iv}\right)$  Electrical synapse and chemical synapse works simultaneously.

After transmission of impulse, neurotransmitter is removed from synaptic cleft by