Nerve Impulse

A nerve impulse is like an electric signal that travels through our body. It helps us feel, move, and think by sending messages between neurons. When the impulse reaches the end of one neuron, it jumps to the next one, continuing the flow of information. This allows our body and brain to communicate and coordinate different actions and sensations.

Nerve Cells

Nerve cells, or neurons, are the building blocks of the nervous system. They transmit and process electrical signals or nerve impulses, allowing communication with other neurons or target cells within the body. Their function is vital for coordinating movement, sensing the environment, and processing information.

Calcium

Calcium plays a crucial role in nerve impulses. During an impulse, calcium ions rush into the nerve cell. This influx triggers the release of neurotransmitters, which transmit signals to neighboring neurons. The presence of calcium is essential for proper nerve communication and coordination.

Neurotransmitters

Neurotransmitters such as dopamine and adrenaline are chemical messengers in nerve impulses. They transmit signals between neurons across tiny gaps called synapses. When an impulse reaches the end of a neuron, neurotransmitters are released into the synapse. These molecules bind to receptors on the receiving neuron, initiating the next electrical impulse.

Channel Receptors

Channel receptors are specialized proteins on the surface of neurons. They act as gateways or channels that allow specific neurotransmitters to bind. When a neurotransmitter attaches to its receptor, the channel opens, allowing ions to flow in or out. This ion flow generates electrical signals, contributing to the transmission of the nerve impulse.

Sodium

Sodium plays a critical role in nerve impulses. During an impulse, sodium ions rush into the nerve cell. This influx creates a change in electrical charge, known as depolarization. This change propagates the impulse along the neuron, enabling the transmission of signals in the nervous system.