The reflex arc consists of the following parts namely- a specific receptor, an afferent nerve fiber, an association neuron, an efferent motor neuron, and an effector organ.
Define reflex arc and its component. – Toppr
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What are the 3 major components of a reflex arc?
The simplest arrangement of a reflex arc consists of the receptor, an interneuron (or adjustor), and an effector; together, these units form a functional group. Sensory cells carry input from the receptor (afferent impulses) to a central interneuron, which makes contact with a motor neuron.
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What are the components of a reflex arc in order?
The path taken by a nerve impulse during a reflex action is known as the reflex arc. The correct order is Receptors → Sensory neuron → Spinal cord → Motor neuron → Muscles.
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What are the components of a reflex arc quizlet?
Terms in this set (5)receptor. Sense organ in skin, muscle, or other organ.sensory neuron. Carries impulses towards CNS.interneuron. Carries impulses within CNS.motor neuron. Carries impulse away from CNS.effector. Structure by which animal responds (muscle, gland, etc.)
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What is reflex arc and what are its components?
It is a shortest pathway for an impulse to travel from the receptor organ via central nervous system to the effector. Components of the reflex arc: It includes one sensory neuron which transmits the sensory impulses from the receptors to the central nervous system.
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What are the components of the reflex arc?
The reflex arc consists of the following parts namely- a specific receptor, an afferent nerve fiber, an association neuron, an efferent motor neuron, and an effector organ. The neurons of a specific receptor receive a stimulus and set up a sensory impulse.
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What are the 5 components of a reflex arc quizlet?
Match Receptor. … Sensory Neuron. … Integration Center. … Motor Neuron. Effector.
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What are the components of a human reflex arc quizlet?
Terms in this set (5)receptor. site of stimulus action.sensory neuron. transmits afferent impulses to the CNS.integration center. consists of one or more neurons in the CNS.motor neuron. conducts efferent impulses from integration center to an effector organ.effector.
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What are the 5 components of the reflex arc in the correct order?
Thus the correct sequence is a sensory receptor, sensory neuron, interneuron, motor neuron and last effector.
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What are the 5 components of reflex arc in order?
FIGURE 7-1 A reflex arc contains five fundamental components: 1, a receptor; 2, a sensory neuron; 3, one or more synapses in the CNS; 4, a motor neuron; and 5, a target organ, usually a muscle.
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What are the basic components of a reflex?
Figure 3 – Reflex path showing the five components of a reflex: sensor, sensory neuron, interneuron, motor neuron, and muscle.
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What are the components of reflex arc physiology?
Reflex Arc Components Most reflex arcs have five main components: receptors, sensory neurons, interneurons, motor neurons and muscles.
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What is reflex action arc?
Answers: A reflex, or reflex action, is an involuntary and nearly instantaneous movement in response to a stimulus. Reflex actions happen through the reflex arc, which is a neural pathway that controls the reflexes. The receptor here is the sense organ that senses danger.
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What are the 5 components of a reflex arc in order?
Reflex Arc ComponentsA receptor – muscle spindle.An afferent fibre – muscle spindle afferent.An integration centre – lamina IX of spinal cord.An efferent fibre – α-motoneurones.An effector – muscle.
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What are the main components of a reflex arc?
The primary components of the reflex arc are the sensory neurons (or receptors) that receive stimulation and in turn connect to other nerve cells that activate muscle cells (or effectors), which perform the reflex action.
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Which is the correct order of events in a reflex arc?
So, the correct answer is ‘Receptors – Sensory neuron – Spinal cord – Motor neuron – Muscle’
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What are the 7 stages of a reflex action?
The main stages of a reflex arc are:stimulus → receptor →sensory neurone → relay neurone →motor neurone → effector →response.
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What are the three major components of reflex arc?
The simplest arrangement of a reflex arc consists of the receptor, an interneuron (or adjustor), and an effector; together, these units form a functional group. Sensory cells carry input from the receptor (afferent impulses) to a central interneuron, which makes contact with a motor neuron.
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What are the components of a reflex arc and explain the role of each?
Reflex arcs Sensory neuron sends electrical impulses to a relay neuron, which is located in the spinal cord of the CNS. Relay neurons connect sensory neurons to motor neurons. Motor neuron sends electrical impulses to an effector. Effector produces a response (muscle contracts to move hand away).
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What are the components of a reflex arc in order?
The path taken by a nerve impulse during a reflex action is known as the reflex arc. The correct order is Receptors → Sensory neuron → Spinal cord → Motor neuron → Muscles.
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What are the components of reflexes?
FIGURE 7-1 A reflex arc contains five fundamental components: 1, a receptor; 2, a sensory neuron; 3, one or more synapses in the CNS; 4, a motor neuron; and 5, a target organ, usually a muscle.
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