biology neurons

What is a neuron?

• • A nerve cell that transmits information.

• • A muscle cell.

• • A blood cell.

• • A bone cell.

What are the main parts of a neuron?

• • Dendrites, axon, and cell body.

• • Chloroplasts, membrane, and nucleus.

• • Mitochondria, ribosomes, and cytoplasm.

• Cell wall , vacuole , and cytoplasm

What is the function of dendrites?

• • To transmit impulses from the neuron to other cells.

• • To divide the cell.

• • To receive signals from other neurons.

• • To produce neurotransmitters.

What is the long extension of a neuron called?

• • Dendrite

• • Axon.

• • Mitochondrion

• • Synapse

Which type of neuron transmits signals from sense organs?

• Motor neurons

• Interneurons

• Sensory neurons

• Effector neurons

What is a synapse?

• • The gap between two neurons where impulses are transmitted.

• A part of myelin sheath

• The nucleus of neuron

• A storage site for neurotransmitters

What is the main function of a neuron?

• To divide and regenerate

• • To store nutrients.

• To generate and transmit nerve impulses.

• • To provide support to other cells.

What is the role of sensory neurons?

• • To carry signals to the muscles.

• • To connect sensory and motor neurons.

• • To carry signals from sensory organs to the nervous system.

• • To protect interneurons.

Where are interneurons located?

• • In muscles.

• • In the brain and spinal cord.

• • In sensory organs.

• • In the skin.

What do motor neurons do?

• • Receive signals from sensory organs.

• • Send signals to muscles or effector cells.

• • Connect to glial cells.

• • Store nerve impulses.