Efferent nerve fiber
Efferent Nerve Fiber
Efferent nerve fibers (pronunciation: /ɪˈfɛrənt/), also known as motor nerve fibers, are a type of nerve fiber that carry signals away from the central nervous system (CNS) to the peripheral effector organs, such as muscles and glands. The term "efferent" comes from Latin efferens, meaning "carrying away".
Etymology
The term "efferent" is derived from the Latin word efferens, which is the present participle of effero, meaning "to carry away" or "to bring forth". This is in reference to the function of efferent nerve fibers, which carry signals away from the CNS to the peripheral organs.
Function
Efferent nerve fibers are responsible for conveying commands from the CNS to the peripheral nervous system (PNS). These commands are then carried out by the effector organs, such as muscles, which contract in response to the signals, and glands, which secrete hormones.
Related Terms
- Afferent nerve fibers: These are the nerve fibers that carry signals from the peripheral organs to the CNS. They are the opposite of efferent nerve fibers.
- Motor neuron: This is a type of neuron that sends signals from the CNS to the effector organs via efferent nerve fibers.
- Sensory neuron: This is a type of neuron that sends signals from the peripheral organs to the CNS via afferent nerve fibers.
See Also
External links
- Medical encyclopedia article on Efferent nerve fiber
- Wikipedia's article - Efferent nerve fiber
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