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two motor neurons are always involved in descending motor pathways. the upper motor neuron and the lower motor neuron.

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Does the descending or motor pathways carry information away from the brain and toward the body through two groups of neurons?

True


What are descending pathways of the CNS composed of?

Descending pathways of the central nervous system are primarily composed of motor neurons that carry signals from the brain to the spinal cord and peripheral nerves. These pathways are responsible for executing voluntary movements, regulating reflexes, and coordinating motor functions throughout the body.


Are only three neurons involved when you catch a baseball?

No, catching a baseball involves more than just three neurons. The process requires complex neural pathways, including sensory neurons to detect the ball's trajectory, motor neurons to coordinate muscle movements, and interneurons to integrate information and refine the response. Additionally, multiple brain regions are involved in visual processing, decision-making, and motor coordination, making it a highly intricate task.


White matter is organized into ascending and descending tracts called?

White matter is organized into ascending and descending tracts called pathways. These pathways consist of bundles of nerve fibers that transmit signals between different regions of the central nervous system. The ascending pathways carry sensory information towards the brain, while the descending pathways carry motor commands from the brain to the muscles and glands.


What is a neuron connecting sensory and motor neurons?

An interneuron is a type of neuron that connects sensory neurons to motor neurons within the central nervous system. It helps process and integrate information received from sensory neurons before transmitting signals to motor neurons for an appropriate response.


What is principle of final common path as it pertains to somatic motor pathways?

The principle of final common path states that all somatic motor pathways converge on the alpha motor neurons in the spinal cord. These alpha motor neurons innervate skeletal muscles to produce movement. This convergence allows for integration of input from multiple sources before initiating a motor response.


What is the main function of interneuron?

interneurons are located in the brain and spinal cord. They are stimulated by signals reaching them from sensory neurons. they process that information and send a response through the motor neurons.


What is the majority of all afferent pathways pass through and synapse with neurons?

The motor neuron is the final common pathway for all neurons to travel to complete their synapse. Afferent neurons or unipolar neurons all pass through the cord and brain on this journey.


What neurons are involved in a reflex?

3 neurons are included in the reflex arc. They are: Afferent neurons (take the message to the spinal cord) (sensory) Association neurons (directs message to the efferent neuron and the brain) (report reflex to the brain) Efferent neurons (takes message to effector) (motor) Not all reflexes have interneurons.


What is the link between neuron pathways and learning?

our core learning is recorded in the set of neurons. sensory neurons send decoding messages to the motor neurons. in case the information generated by one set of neurons is insufficient to solve the problem, the inter neurons send furthar questions through the pathways to another set of neurons and carries back the information to the earlier set of neurons. un answered questions get recorded in a new set of neurons as new experience.


What would be the cause of a change in afferent and efferent?

A change in afferent pathways could be due to damage or dysfunction in sensory receptors, nerves, or pathways. A change in efferent pathways could be caused by issues in motor neurons or the neuromuscular junction. Both types of changes can result in altered sensory perception or impaired motor function.


True or false Most of the ascending and descending pathways to and from the brain cross over from one sid of the body to the other?

True. Most ascending pathways carry sensory information to the brain, and most descending pathways carry motor commands from the brain to the body, crossing over from one side of the body to the other at some point. This crossover is known as decussation.