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Does the nerve impulse reaches the brain during reflex arc?
No, during a reflex arc, the nerve impulse does not reach the brain before the reflex action occurs. Instead, the impulse travels from the sensory receptor through the spinal cord to the motor neurons, which directly trigger a response. This allows for a quick reaction to stimuli, bypassing the brain for immediate response. The brain may become aware of the stimulus and the reflex action afterward.
During a knee-jerk reflex the nerve impulse is received by the?
The knee-jerk reflex is controlled by the interneurons in the spinal cord.
How is a reflex nerve impulse different than other nerve impulses?
Skeletal muscles interact with the spinal cord
What is the direction of impulse in a neuron?
A nerve impulse travels toward the actual nucleus itself to pass information.
Where does the nerve impulse travel from the reflex arc?
The nerve impulse typically travels from the sensory neuron to the spinal cord, where it is processed by interneurons, and then to the motor neuron to elicit a response from the effector organ or muscle.
What is the nerve impulse from your foot to your leg called?
The nerve impulse from your foot to your leg is called a sensory nerve signal or proprioceptive feedback. It helps transmit information about sensations such as touch, pressure, and position to the brain.
What reaches the end of the axon when the neurotransmitter is released and diffuses to the muscle membrane to combine with receptors there?
nerve impulse
Why does a reflex nerve pathway move faster than a normal nerve transmission?
Reflex nerve pathway is a monosynaptic transmission. There are no interneurons involved. Only the limb that carries the afferent nerve impulse from the stimulus and the efferent motor function for the reflex involved. That is why it is faster. Normal nerve transmission require an interpretation of the impulse by the brain whereas reflex pathways do not. Another reason is because most reflexes from the exteroreceptors travel along myelinated axons (white matter) which carry the impulse faster than other neurons that have unmyelinated axons (grey matter).
What is the difference between a reflex arc and a normal nerve impulse?
A reflex arc doesn't go all the way up to the brain. Thus it NEVER becomes part of the thought process.
What is quicker a nerve impulse or a hormone?
nerve impulse
How many speed of impulse in reflex arc?
The speed of impulse in a reflex arc can vary, but it is usually very fast, allowing for quick responses to stimuli. In general, impulses can travel at speeds of up to 100 meters per second along myelinated nerve fibers.
What is a chemical impulse?
A chemical impulse refers to the rapid transmission of signals in the nervous system, primarily involving the release of neurotransmitters at synapses between neurons. When a nerve impulse reaches the end of a neuron, it triggers the release of these chemicals, which cross the synaptic gap and bind to receptors on the adjacent neuron, facilitating communication. This process is essential for various functions, including muscle contraction, reflex actions, and the overall functioning of the brain.
