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What part of the reflex arc carries out motor response?
The part of the reflex arc that carries out the motor response is the motor neuron. Once the sensory neuron detects a stimulus and transmits the signal to the spinal cord, the interneurons (if present) process the information and send signals to the motor neurons. The motor neurons then carry the response signal from the spinal cord to the effector organs, such as muscles or glands, resulting in the appropriate action or response.
Are neurons chemical messages sent to the brain?
Neurons themselves are not chemical messages; rather, they are specialized cells that transmit electrical impulses. When a neuron communicates with another neuron, it releases neurotransmitters, which are chemical messengers that cross the synapse to relay information. These neurotransmitters can influence the activity of the receiving neuron, ultimately affecting how signals are processed in the brain. Therefore, while neurons send signals, the chemical messages are the neurotransmitters they release.
Does the motor neuron send a signal to or from the muscle fiber?
Sensory Neuron sends info to the brain while the motor sends the info to the muscle fiber.The motor neurone sends a signal from the CNS or PNS to the effector muscle or gland. Therefore the motor neurone sends a signal TO the muscle fibre.
Certain mental problems are thought to be caused by not having enough neurotransmitters. Why would a lack of neurotransmitters cause problems?
Neurotransmitters send signals from neuron to neuron
What is an electrical signal in a neuron used to send messages in the body called?
An electrical signal in a neuron used to send messages in the body is called an action potential. This signal is generated by the flow of ions across the neuron's membrane when it reaches a certain threshold, leading to the propagation of the signal along the neuron.
Which is the correct sequence in a typical reflex?
Receptor ---> sensory neuron----> interneuron (at spinal cord)---->motor neuron---->effector. The Achelles tendon reflex is a good example of how this happens. You do send infromation to the brain in the form of an "incident report" but his is much slower.
Axons and Dendrites are part of what kind of cell?
Neurons, of the nervous system. The dendrites receive impulses, and the axons send them to another neuron or an effector cell.
What 3 neurons make up a reflex arc?
There are actual two types of reflex arc. One contains just two and the other contains three.A reflex arc involves the following components:1. The receptor (sensory neuron) that detects a stimulus.The sensory neuron transmits the impulse to the spinal cord.2.The integration center (interneuron) in the cord. This one can be missing. If it is, the reflex is very, very rapid. If the interneuron is used, it can send information up the cord to the brain. Your response will be faster than your brain's "knowing" what happened.3. A motor neuron transmits a nerve impulse from the spinal cord to a peripheral region.An effector is a muscle or gland that receives the impulse form the motor neuron. In somatic reflexes, the effector is skeletal muscle. In autonomic (visceral) reflexes, the effector is smooth or cardiac muscle, or a gland.
Why would a neuron not send an impulse?
If a neuron is not sending out an impulse or signal, this means the neuron is at rest. Neurons send signals electrochemically.
What part of the reflex arc carries out motor response?
The part of the reflex arc that carries out the motor response is the motor neuron. Once the sensory neuron detects a stimulus and transmits the signal to the spinal cord, the interneurons (if present) process the information and send signals to the motor neurons. The motor neurons then carry the response signal from the spinal cord to the effector organs, such as muscles or glands, resulting in the appropriate action or response.
Why would a lack of neurotransmitters cause problems?
neurotransmitters send signals from neuron to neuron
Are neurons chemical messages sent to the brain?
Neurons themselves are not chemical messages; rather, they are specialized cells that transmit electrical impulses. When a neuron communicates with another neuron, it releases neurotransmitters, which are chemical messengers that cross the synapse to relay information. These neurotransmitters can influence the activity of the receiving neuron, ultimately affecting how signals are processed in the brain. Therefore, while neurons send signals, the chemical messages are the neurotransmitters they release.
Does the motor neuron send a signal to or from the muscle fiber?
Sensory Neuron sends info to the brain while the motor sends the info to the muscle fiber.The motor neurone sends a signal from the CNS or PNS to the effector muscle or gland. Therefore the motor neurone sends a signal TO the muscle fibre.
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 are the three types of neurone involved in a reflex action?
The three types of neurons are sensory(afferant) neurons, interneurons, and motor(efferant) neurons. Sensory, or afferent, neurons send information from the receptor to the central nervouse system. Interneurons, found only in the central nervous system, play the role of interpretting the impulse. The motor, or efferent, neurons send the information from the central nervous system to the effector. Receptor->sensory neuron->interneuron->motor neuron->effector.
Certain mental problems are thought to be caused by not having enough neurotransmitters. Why would a lack of neurotransmitters cause problems?
Neurotransmitters send signals from neuron to neuron
What is the nerves that send messages from the CNS to internal organs?
Motor Neurones send the impulse from the CNS to the effector muscle
