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Impulses move slower at lower temperatures because temperature affects the speed of nerve conduction by altering the rate of chemical reactions involved in transmitting the impulse. Cold temperatures slow down these chemical reactions, causing nerve impulses to travel more slowly.

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1y ago

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Does neural impulses travel faster than hormonal messages?

Yes, neural impulses travel faster than hormonal messages. Neural impulses are electrical signals that travel along nerve cells at speeds of up to 120 meters per second, while hormonal messages are transmitted through the bloodstream at slower speeds, ranging from a few centimeters to a few meters per second.


What has an effect on the speed of impulse conduction?

Several factors can affect the speed of impulse conduction along a neuron. These include the diameter of the axon (larger axons transmit impulses faster), myelination (myelinated axons conduct impulses faster than unmyelinated axons), temperature (higher temperatures generally increase conduction speed), and the presence of nodes of Ranvier (which allow for saltatory conduction, speeding up the process).


What is the advantage of saltatory conduction in nerve impulses?

The advantage of saltatory conduction in nerve impulses is that it allows for faster transmission of signals along the nerve fibers. This is because the electrical impulses "jump" from one node of Ranvier to the next, rather than traveling continuously along the entire length of the nerve fiber. This speeds up the transmission of signals and conserves energy for the nerve cell.


Does impulse travel faster along myelinated neuron?

Yes, impulses travel faster in myelinated axon rather than in unmyelinated. It is mostly due to nodes of Ranvier. Instead of travel along the axon, in myelinated axon impulses "jump" from node to node. Also there are two types of myelinated axons: type A and type B. (Type C in unmyelinated axon.) Type A is the fastest among all of them.


What is the function of the nodes of Ranvier in the propagation of nerve impulses?

The nodes of Ranvier are gaps in the myelin sheath that help speed up the transmission of nerve impulses by allowing the electrical signal to jump from one node to the next, a process known as saltatory conduction. This helps the nerve impulses travel faster along the nerve fiber.


Where do faster neural impulses occur?

Faster neural impulses occur in myelinated neurons, specifically at the nodes of Ranvier where the myelin sheath is interrupted. This allows for a process called saltatory conduction, where the action potential jumps from one node to the next, speeding up the transmission of electrical signals along the neuron.


Which lasts longer Nerve Impulses or Hormones?

Nerve impulses are faster but don't last as long as hormones. Nerve impulses are quick electrical signals that travel along neurons, allowing for rapid responses, while hormones are chemical messengers that circulate in the blood and can have effects that last longer by regulating various body functions.


What is a disadvantage of unmyelinated nervous tissue when compared to myelinated tissue?

Unmyelinated tissue is substantially slower in conducting impulses along the axon. With myelinated axons, the action potential (impulse) jumps from node to node greatly increasing the speed of the impulse.


What do impulses from receptor pass along?

Dinosaur Poo.


How are nerve impulses initiated and transmitted?

Nerve impulses are initiated and transmitted according to nerve reactions and messages that get passed along or transmitted along nerve synapses and zones.


What will conduct a nerve impulse faster thick or thin axon?

Thick axons conduct nerve impulses faster than thin axons because they have a lower resistance to the flow of electrical signals. This allows for quicker transmission of signals along the axon.


Where is visible light found in the electromagnetic spectrum?

Electromagnetism is manifest along a continuum between slower radio waves and faster energy gamma waves. Visible light can be found in the range between infrared light (slower than waves of visible light) and ultraviolet light (faster than waves of visible light).