Neuron working model
A neuron is the fundamental unit of the nervous system, responsible for transmitting electrical and chemical signals throughout the body. It consists of three main parts: 1. Cell Body (Soma) – Contains the nucleus and organelles that maintain cell function. 2. Dendrites – Branch-like structures that receive signals from other neurons. 3. Axon – A long fiber that transmits signals away from the cell body to other neurons or muscles. Additional Features: Myelin Sheath – A fatty layer that insulates the axon, speeding up signal transmission. Nodes of Ranvier – Gaps in the myelin sheath that facilitate rapid signal conduction. Axon Terminals – End points where signals are transmitted to other neurons via neurotransmitters. Synapse – The junction between neurons where chemical signals (neurotransmitters) are exchanged. Types of Neurons: Sensory Neurons – Carry signals from sensory organs to the brain and spinal cord. Motor Neurons – Transmit signals from the brain/spinal cord to muscl...