Afferent nerve

Afferent Nerve

An Afferent nerve is a type of nerve that carries sensory information from the peripheral nervous system to the central nervous system. This information is typically in the form of sensory feedback from the body, which the brain uses to adjust the body's responses and actions.

Structure

Afferent nerves are composed of neurons, which are specialized cells that transmit electrical impulses. These neurons have a unique structure, with a cell body and long extensions known as axons and dendrites. The axons of afferent neurons are responsible for carrying information towards the central nervous system.

Function

The primary function of afferent nerves is to relay sensory information from the body to the brain. This information can include things like temperature, pain, pressure, and the position of the body's muscles and joints. The brain uses this information to make adjustments to the body's actions and responses.

Clinical significance

Damage to afferent nerves can result in a variety of sensory deficits, including numbness, tingling, and loss of proprioception. Conditions such as neuropathy and multiple sclerosis can affect the function of afferent nerves.

See also

• Efferent nerve
• Sensory neuron
• Peripheral nervous system
• Central nervous system

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