närvirakud

Närvirakud, also known as neurons, are the fundamental units of the nervous system. They are specialized cells responsible for transmitting information throughout the body through electrical and chemical signals. These signals allow for communication between different parts of the brain and between the brain and the rest of the body.

Each neuron consists of three main parts: the cell body (soma), dendrites, and an axon. The cell body contains the nucleus and other essential organelles. Dendrites are branched extensions that receive signals from other neurons. The axon is a long, slender projection that transmits signals away from the cell body to other neurons, muscles, or glands. The junction between two neurons where information is transmitted is called a synapse.

Närvirakud play a crucial role in all nervous system functions, including thought, memory, sensation, and movement. They form complex networks that process and relay information, enabling us to perceive the world, learn, and interact with our environment. Damage or dysfunction of närvirakud can lead to various neurological disorders.