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How does the structure of the sensory neurone maximise the speed of an impulse passing through it?
The structure of a sensory neuron is optimized for the speed of impulse transmission through features such as a long axon with a myelin sheath and nodes of Ranvier. The myelin sheath insulates the axon, allowing for faster saltatory conduction of the signal. Additionally, the clustered sodium channels at the nodes of Ranvier help in rapid depolarization, enhancing the speed of the impulse.
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 path of a nerve impulse from your leg to your brain and back to your leg?
A nerve impulse travels from your leg to your brain through sensory neurons. Once in the brain, the impulse is processed, and a response is generated. The response travels back to your leg through motor neurons to initiate movement or action.
What is the correct route taken by an impulse after it haws a left relay neurone?
After passing through a left relay neuron, the impulse would travel to the right side of the brain to be processed in the cerebral cortex. The cerebral cortex is responsible for higher brain functions including sensory perception and motor control.
If you accidentally step on a tack with your bare foot the pathway that the nerve impulse takes from your foot to your leg is called a reflex arc.?
Yes, that's correct! When you step on a tack, sensory receptors in your foot detect the pain and send a nerve impulse through sensory neurons to the spinal cord. This impulse then travels to motor neurons, which activate the muscles in your leg to quickly withdraw your foot from the painful stimulus. This entire process, known as a reflex arc, occurs rapidly and often without conscious thought to protect your body from injury.
What type of impulse travels through the posterior gray horn?
sensory
What direction will a neuron impulse travel through sensory neuron?
A neuron's impulse travels in one direction, starting from the dendrites, where sensory information is received, and moving towards the cell body. From the cell body, the impulse continues down the axon, eventually reaching the axon terminals. This unidirectional flow is essential for the proper transmission of signals within the nervous system.
How does the structure of the sensory neurone maximise the speed of an impulse passing through it?
The structure of a sensory neuron is optimized for the speed of impulse transmission through features such as a long axon with a myelin sheath and nodes of Ranvier. The myelin sheath insulates the axon, allowing for faster saltatory conduction of the signal. Additionally, the clustered sodium channels at the nodes of Ranvier help in rapid depolarization, enhancing the speed of the impulse.
How does information from the sensory receptorsin the skin get to the brain?
The initial sensory receptor detects a change e.g temperature. This is sent as an electrical impulse via a series of sensory receptors to the spine, if there is a problem a reflex occurs. If there is no problem the impulse is transmitted to the brain through the spinal cord.
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 range for nerve impulse transmission through the human body?
over 9000
What is the path of a nerve impulse from your leg to your brain and back to your leg?
A nerve impulse travels from your leg to your brain through sensory neurons. Once in the brain, the impulse is processed, and a response is generated. The response travels back to your leg through motor neurons to initiate movement or action.
How does sensory impulse move throughout the body?
Sensory impulses travel through sensory neurons from the sensory receptors to the spinal cord and then to the brain for processing. The impulses are transmitted as electrical signals and travel along the neurons using a combination of electrical and chemical signals. Once the brain processes the sensory information, it generates a response that is transmitted back through motor neurons to carry out appropriate actions.
What is stimuli impulse?
A stimulus is any event that evokes a specific response in an organism, while an impulse is a message carried by neurons in response to a stimulus. When a stimulus is detected by sensory receptors, it triggers an impulse that is transmitted through the nervous system to elicit a reaction or behavior.
Describe the path a nerve impulse travels through?
When an impulse travels to the brain, it is first received by sensory receptors, then sent through the neurons by an electrical current. When the neuron receives the signal from a sensory receptor or from another neuron, the nucleus processes the impulse and then sends it down the axon. When a neuron is resting, the inside of the cell has a negative charge caused by active transport of NA and K molecules. This is called the resting potential. When the impulse hits the axon, the electricity causes NA pumps to open, allowing a flow of positively charged the molecule into the cell, causing the charges to switch. This is called the action potential. As the impulse passes, the K pumps open, restoring the original charge. When the impulse reached the end of the axon, neurotransmitters chemically pass the impulse to the next neuron. ;
List the Basic steps of simple reflex arc like the stretch reflex?
receptor: initiate impulse: receive something sensory neuron: will carry impulse from receptors to the central nervous system motor neuron: tranmits impulse away from central nervous system into effector internuncial neuron: carry impulse from pre- synaptic to post synaptic effector: muscles or glands
What is the path that nervous impulse takes through the nervous system?
A nervous impulse begins in the dendrites of a neuron, travels through the cell body and axon, and then is passed on to the next neuron via a synapse. This sequence repeats until the impulse reaches its destination, such as a muscle or gland, where it triggers a response.
