The dendrites are the "input" portion of the neuron, collecting signals from other neurons. However, the axon is the "output" portion of the neuron, sending signals to other neurons.
The axon is single process extending from the axon hillock, sometimes covered by a fatty layer called a myelin sheath. It conducts nerve impulses away from the cell body of the neuron.
The distal tips of axons are telodendria, each of which terminates in a synaptic knob.
dendrites
dendrite
axon
Presynaptic neuron sends postsynaptic receives
Your nervous system sends messages from the body to the brain. Different kinds of Neurons are used to send each message, to allow your brain to know what is going on in your environment. The things that cause a reaction are called Stimuli. Messages are sent along nerve cells, or Neurons. For instance, if you prick your finger on a pin, a sensor in your skin called a Receptor sends a message of pain through a Sensory Neuron, to a Relay neuron in your Central Nervous System (which is your brain and spinal cord). The message is then sent through the CNS, to the brain, so your brain can decide how to react to the pain. The message is THEN sent through a motor neuron, which causes your muscles to move to react to the message. (Something that reacts to a message from a neuron is called an Effector- because it causes an effect.) In this case, the message from the motor neuron to the effector- your muscle- would make you pull your hand back, to get it away from the pin. In short: A change in your environment, like pain, is picked up by a Receptor. The message picked up by the Receptor is sent through a Sensory Neuron. The message is then sent through the Central Nervous System by Relay Neuron. Once the brain has decided what to do, it sends a message to the Motor Neuron. The Motor Neuron triggers an Effector (a muscle, or some chemical secretion) to react to the change. It may not be completely correct, but I'm 90% sure that's at least a rough, simple version.
Sensory nerve fibers carry message to brain. A part of neuron or or single neuron does not carry this message to the brain.
The end of one neuron, the presynaptic button, sends messages to other cells by releasing neurotransmitters (chemical messengers) into the synaptic cleft (a small space between two neurons). The other cell, whether it be a neuron, a muscle, a sweat gland, etc., will receive this message at the post synaptic membrane of its cell, and will respond accordingly.
The cochlea
Axon sends the message. Dendrite receives it.
Presynaptic neuron sends postsynaptic receives
Your nervous system sends messages from the body to the brain. Different kinds of Neurons are used to send each message, to allow your brain to know what is going on in your environment. The things that cause a reaction are called Stimuli. Messages are sent along nerve cells, or Neurons. For instance, if you prick your finger on a pin, a sensor in your skin called a Receptor sends a message of pain through a Sensory Neuron, to a Relay neuron in your Central Nervous System (which is your brain and spinal cord). The message is then sent through the CNS, to the brain, so your brain can decide how to react to the pain. The message is THEN sent through a motor neuron, which causes your muscles to move to react to the message. (Something that reacts to a message from a neuron is called an Effector- because it causes an effect.) In this case, the message from the motor neuron to the effector- your muscle- would make you pull your hand back, to get it away from the pin. In short: A change in your environment, like pain, is picked up by a Receptor. The message picked up by the Receptor is sent through a Sensory Neuron. The message is then sent through the Central Nervous System by Relay Neuron. Once the brain has decided what to do, it sends a message to the Motor Neuron. The Motor Neuron triggers an Effector (a muscle, or some chemical secretion) to react to the change. It may not be completely correct, but I'm 90% sure that's at least a rough, simple version.
The question isn't clear enough. Does it mean the part that sends info. through the neuron (the axon)? Or does it mean the part that sends information to other neurons (the synapse)?
Sensory nerve fibers carry message to brain. A part of neuron or or single neuron does not carry this message to the brain.
This is what happens:a receptor detects a stimulus (change in the environment)a sensory neuron sends a signal to the relay neuronthe relay neuron sends the signal to the motor neuronthe motor neuron sends a signal to the affected partthe affected part produces a response
The axon terminal is the part of the nerve responsible for sending the message at all. Not only does it send the message, though, it has branching paths which allow it to determine which path it'll go on.
The end of one neuron, the presynaptic button, sends messages to other cells by releasing neurotransmitters (chemical messengers) into the synaptic cleft (a small space between two neurons). The other cell, whether it be a neuron, a muscle, a sweat gland, etc., will receive this message at the post synaptic membrane of its cell, and will respond accordingly.
Signalling ALONG a neuron is electrical, but signalling BETWEEN neurons is a chemical process. Neuron A 'passes' a message onto the next by releasing chemicals called neurotransmitters , which are then taken up by neuron B. The point at which these neurotransmitters are released from the neuron A is called the 'terminal bouton' and is the end of its axon. More specifically, it is the presynaptic membrane OF the terminal bouton at which the passing on of a message occurs.
Messages from the neuron always travel from the cell body down the axon.
axon
The cochlea