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Not all sensory and motor neurons are myelinated in organisms. Myelination varies among different types of neurons; for instance, many sensory neurons, such as those involved in pain perception (nociceptors), are unmyelinated. Myelinated neurons generally transmit impulses faster due to the insulation provided by myelin, while unmyelinated neurons often serve functions that require slower transmission speeds. Overall, the presence or absence of myelination is determined by the specific functional requirements of the neuron.
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Are ll sensory and motor neurones myelinated in organisms?
Not all sensory and motor neurons are myelinated; it depends on the type of neuron and its function. Myelinated neurons, which have a protective myelin sheath, facilitate faster signal transmission and are commonly found in motor neurons and some sensory neurons, such as those involved in touch and proprioception. However, unmyelinated neurons also exist, particularly in systems where speed is less critical, such as certain pain and temperature sensory pathways. Thus, the presence of myelination varies among different types of neurons in organisms.
How may you Explain the role of sensory and motor neurones in a reflex arc.?
what is the role of sensory and motor neurones in a reflex arc
Why do the sensory neuron has short axon and long dendrites?
sensory and motor neurons are sometimes very long so that the impulses can be carried away from the body very quickly. in the motor neuron the impulses "jump" over the fatty tissue to the Node Of Ranvier.
What is the connection between sensory nerves and the neurons in the brain?
Both use neurones which transmit in via action potential and synaptic transmission. Sensory neurones include pain neurones which enter directly into the brain, which perceives the stimulus as pain and gives emotional and motor responses accordingly. Sensory neurones also perceive homeostasis, in that they sense stimuli outside physiological norms and change homeostasis in order to rectify the problem. All motor and limbic (emotional) outputs from the brain are stimulated and therefore initiated by sensory neurone inputs. The spine relys information from peripheral sensory neurones to the brain, and is the literal connection between sensory neurones and the brain.
Three differences between sensory neurone and motor neurone?
# Motor neurones have cell bodies inside the Central Nervous System (CNS) whilst in sensory neurones the cell body is located outside of the CNS # Motor neurones transmit impulses from the CNS to the effector which brings about a response to the situation, sensory neurones transmit impulses from to the CNS from the receptor. # Sensory neurones transmit impulses as a result of external stimuli such as pressure, light, temperature etc. Motor neurone transmit impulses passed along the CNS to the effector.
Are ll sensory and motor neurones myelinated in organisms?
Not all sensory and motor neurons are myelinated; it depends on the type of neuron and its function. Myelinated neurons, which have a protective myelin sheath, facilitate faster signal transmission and are commonly found in motor neurons and some sensory neurons, such as those involved in touch and proprioception. However, unmyelinated neurons also exist, particularly in systems where speed is less critical, such as certain pain and temperature sensory pathways. Thus, the presence of myelination varies among different types of neurons in organisms.
Why does the body have both sensory and motor neurones?
the body has both sensory and motor neurones because the sensory neurones sense what is happening and sends the message along and like a motor the motor neurones pass on the message constantly round and round until it reaches its destination
Similarities of motor and sensory neurons?
Sensory neurones carry impulses to the CNS, motor neurones carry impulses to muscles.
How may you Explain the role of sensory and motor neurones in a reflex arc.?
what is the role of sensory and motor neurones in a reflex arc
What type of neuron's involved in a knee jerk?
sensory neurones motor neurones
How many synapses occur in this reflex arc?
In a simple reflex arc, there are typically three neurons and two synapses. The sensory neuron carries the signal from the receptor to the central nervous system, where it synapses with the interneuron. The interneuron then synapses with the motor neuron, which carries the signal to the effector organ to produce a response.
Why do the sensory neuron has short axon and long dendrites?
sensory and motor neurons are sometimes very long so that the impulses can be carried away from the body very quickly. in the motor neuron the impulses "jump" over the fatty tissue to the Node Of Ranvier.
What is the connection between sensory nerves and the neurons in the brain?
Both use neurones which transmit in via action potential and synaptic transmission. Sensory neurones include pain neurones which enter directly into the brain, which perceives the stimulus as pain and gives emotional and motor responses accordingly. Sensory neurones also perceive homeostasis, in that they sense stimuli outside physiological norms and change homeostasis in order to rectify the problem. All motor and limbic (emotional) outputs from the brain are stimulated and therefore initiated by sensory neurone inputs. The spine relys information from peripheral sensory neurones to the brain, and is the literal connection between sensory neurones and the brain.
Type of neurones along a reflex arc?
the sensory receptor begins then the Relay neuron and final the motor neuron
Three differences between sensory neurone and motor neurone?
# Motor neurones have cell bodies inside the Central Nervous System (CNS) whilst in sensory neurones the cell body is located outside of the CNS # Motor neurones transmit impulses from the CNS to the effector which brings about a response to the situation, sensory neurones transmit impulses from to the CNS from the receptor. # Sensory neurones transmit impulses as a result of external stimuli such as pressure, light, temperature etc. Motor neurone transmit impulses passed along the CNS to the effector.
Describe motor development?
Motor development is the development of strength, speed and precision in the use of speech organs, hands, fingers, arms and legs and other bodily muscles. Sumaira Pakistan
What is the basic unit of structure and functon of the nervous system?
The nervous system is used to trasmit information around the body. It is made of two systems: the central nervous system (which consists of the spine and brain) and the peripheral nervous system (which consists of neurones and receptors). There are three types of neurones: sensory neurones, relay neurons, and motor neurones.
