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Are there more than one afferent neuron that will send a message to the brain?
Wiki User
∙ 15y ago
No afferent neuron simply refers to any neuron bringing information to the brain. There are tons of afferent neurons bringing signals from all different parts and organs of the body. One neuron is not able to transfer all of the action potentials from the entire body through it, and thus many are needed.
Wiki User
∙ 15y ago
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Part of a neuron that transmits nerve impulses toward the central nervous system?
Afferent neurons do this. Efferent do the opposite. It does not matter which system the neurons belong to i.e. Automonic vs. sympathetic. This is a general definition of the direction which nerve impulses are conducting. Afferent nerves are more commonly but less accurately known as sensory nerves.
What is the flow of information in a spinal reflex arc in the correct order?
The reflex arc includes the sensory neuron (sensory intake) to the motor neuron (motor response). This two neuron arc is the fastest. Many times an interneuron at the level of the spinal cord is involved. It passes information to the brain more slowly. It is like an "incident report".
What is the correct order of components of a reflex arc?
The three-neuron arc is the most common and consists of the afferent neurons, interneurons, and the efferent neurons. Afferent neurons conduct impulses to the CNS from the receptors. Efferent neurons conduct impulses from the CNS to effectors (muscle or glandular tissue). Two-neuron arc is the simplest form, fastest responding and consists of afferent and efferent neurons. Example is the knee-jerk reflex.
What part sends messages from your brain and spinal cord to muscle cells?
Electrical impulses travel from the brain along the spinal cord and nerve fibers to the muscles.Brain send the message via nerve impulses involving neurons which use the neuro-transmitter Acetylcholine.
What begins when a neuron is stimulated by another neuron or by the environment true or false?
From the axon terminal of another neuron, a bunch of chemicals (neurotransmitters) are released and travel across the synapse (junction of two neurons). If enough stimulate the second neuron, the total energy triggers another action potential. Short and simple explanation--message me if you want more info!
How your brain and sensory organs get information from the outside world?
Your brain has about 100 billion neurons, all of which are interneurons. Each of these neurons may receive up to 10,000 messages from other neurons and may send messages to about 1,000 more. Every day, billions of nerve impulses travel through your nervous system from neuron to other neurons or body structures. The place where a neuron transfers an impulse to another structure is called a synapse. At the axon tips, electrical signals carried through the neuron change into a chemical form. This change allows the message to cross the gap. The message then continues in electrical from through the next neuron.
Does the efferent system sends information from the brain to spinal cord throughout the body?
You are correct; efferent neurons carry impulses from your brain to/and spinal cord throughout the body. Efferent nerves, otherwise known as motor or effector neurons, carry nerve impulses away from the central nervous system to effectors (such as muscles or glands and also the ciliated cells of the inner ear).The term 'efferent' can also be used in more localized locations (though still in the nervous system). For example, a neuron's efferent synapse provides input to another neuron, and not vice-versa. Vice-versa would be afferent. (see below)The opposite of efferent neurons are afferent, which are neurons that carry impulses from the body back to the brain. An easy mnemonic: Efferent connections Exit. Afferent connections Arrive.Hope this helps!
What are the four major elements of a simple nervous pathway?
Sensory receptor, afferent neuron, efferent neuron, effector organ.
Which is the last part of the neuron to be involved in the transmission of a neural impulse towards the next neuron?
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.
What is the sequence of a typical reflex arc?
1. The receptor reacts to a stimulus. 2. The sensory neuron conducts the afferent impulses to the CNS. 3. The integration center consists of one or more synapses in the CNS. 4. The motor neuron conducts the efferent impulses from the integration center to an effector. 5. The effector, muscle fibers or glands, respond to the efferent impulses by contraction or secretion a product, respectively.
How does the brain store memory?
Actually, no one quite knows yet how this process works.
What circuit types is exemplified by impulses that travel from a single neuron of the brain and activate a hundred or more motor neurons in the spinal cord?
Diverging circuits
