Table of Contents
- 1 What are efferent neurons responsible for?
- 2 What is efferent pathway?
- 3 What happens if efferent neurons are damaged?
- 4 What part of the nervous system does the somatic nervous system control?
- 5 Which parts of the neuron might be viewed as afferent efferent integrative?
- 6 Where is the afferent nerve located?
What are efferent neurons responsible for?
Efferent neurons, also called motor neurons, are the nerve fibers responsible for carrying signals from the brain to the peripheral nervous system in order to initiate an action. In other words, they are the neurons that tell your body to perform an action, such as removing your hand from a hot pan.
What is difference between afferent and efferent?
Afferent neurons are neurons whose axons travel towards (or bringing information to) a central point, while an efferent neuron is a cell that sends an axon (or carries information) away from a central point.
What is efferent pathway?
Nerve structures through which impulses are conducted from a nerve center toward a peripheral site. Such impulses are conducted via efferent neurons (NEURONS, EFFERENT), such as MOTOR NEURONS, autonomic neurons, and hypophyseal neurons. Year introduced: 1976.
Is the CNS afferent or efferent?
The afferent or sensory division transmits impulses from peripheral organs to the CNS. The efferent or motor division transmits impulses from the CNS out to the peripheral organs to cause an effect or action.
What happens if efferent neurons are damaged?
If motor (= efferent) fibers are destroyed, you are not able to lift your leg, because the command can’t be transmitted from the brain to the muscles in the leg. If sensory (= afferent) fibers are affected, you and your brain won’t be notified by the sensory organs, e.g. if somebody strikes your leg.
What do afferent fibers do?
Afferent nerve fibers are the axons (nerve fibers) carried by a sensory nerve that relay sensory information from sensory receptors to regions of the brain. Afferent projections arrive at a particular brain region. In the central nervous system non-motor efferents are carried in efferent nerves to act on glands.
What part of the nervous system does the somatic nervous system control?
The somatic nervous system is a component of the peripheral nervous system associated with the voluntary control of the body movements via the use of skeletal muscles.
What is difference between central nervous system and peripheral nervous system?
The central nervous system includes the brain and spinal cord, while the peripheral nervous system includes all of the nerves that branch out from the brain and spinal cord and extend to other parts of the body including muscles and organs.
Which parts of the neuron might be viewed as afferent efferent integrative?
Dendrites. The dendrites make up the receptive portion of the neuron, and receive most synaptic afferent inputs from upstream neurons. Cell body. The cell body, also the soma, is the integrative portion of the neuron, where incoming signals from dendrites are summed together.
How do afferent and efferent neurons work together?
Afferent neurons convey information from tissues and organs into the central nervous system (e.g. sensory neurons). Efferent neurons transmit signals from the central nervous system (CNS) to the effector cells (e.g. motor neurons ).
Where is the afferent nerve located?
They have a smooth and rounded cell body located in the ganglia of the peripheral nervous system. Just outside the spinal cord, thousands of afferent neuronal cell bodies are aggregated in a swelling in the dorsal root known as the dorsal root ganglion.