Draw a neat diagram of a Neuron and label any two parts.
Topic: Neuron — diagram
Answer
Your diagram must show: • CYTON (cell body) containing the NUCLEUS • DENDRITES — short branched processes arising from the cyton • AXON — a single long process leading away • MYELIN SHEATH covering the axon, with NODES OF RANVIER as gaps • NERVE ENDINGS (axon terminals) at the far end
Any TWO of these need be labelled, as the question asks.
Read the instruction: only TWO labels are required. Labelling more is harmless, but the marks are for a NEAT and correctly shaped diagram, so spend the time on the drawing.
WHAT THE SHAPE MUST SHOW, because this is where diagrams go wrong: DENDRITES are SHORT, numerous and BRANCHED, clustered at the cell body the AXON is SINGLE and LONG, extending away from it Drawing several long processes, or branching the axon at its base, loses the mark even if the labels are right.
THE FUNCTIONAL LOGIC worth remembering: dendrites are the "ears" of the neuron — they RECEIVE impulses — and the axon is the "mouth", CARRYING the impulse away. Information therefore travels dendrite → cyton → axon, never the reverse.
The MYELIN SHEATH insulates the axon so that the impulse leaps from node to node, which greatly speeds transmission.