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Which is the correct sequence of the components of a reflex arc? - Science

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प्रश्न

Which is the correct sequence of the components of a reflex arc?

पर्याय

  • Receptors → Muscles → Sensory neuron → Motor neuron → Spinal cord

  • Receptors → Motor neuron → Spinal cord → Sensory neuron → Muscle

  • Receptors → Spinal cord → Sensory neuron → Motor neuron → Muscle

  • Receptors → Sensory neuron → Spinal cord → Motor neuron → Muscle

MCQ
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उत्तर

Receptors → Sensory neuron → Spinal cord → Motor neuron → Muscle

Explanation - 

Sensory neuron collect signal from the receptor in a reflex arc. This signal moves forward to spinal cord and then through the motor neuron, it reaches to muscles.

Spinal Reflex Arc

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पाठ 7: Control and Coordination - Multiple Choice Questions [पृष्ठ ५७]

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एनसीईआरटी एक्झांप्लर Science [English] Class 10
पाठ 7 Control and Coordination
Multiple Choice Questions | Q 5. | पृष्ठ ५७

संबंधित प्रश्‍न

A part of the body which responds to the instructions sent from the nervous system is called ____________.


Reflex arc is formed by:


Assertion: Reflex Arc works faster than the thinking process of the brain.

Reason: Reflex Arc works in the case of those animals who do not have a thinking process.


Which of the following statements are true?

  1. Sudden action in response to something in the environment is called reflex action
  2.  Sensory neurons carry signals from spinal cord to muscles
  3. Motor neurons carry signals from receptors to spinal cord
  4. The path through which signals are transmitted from a receptor to a muscle or a gland is called reflex arc

Junction between two neurons is called


What are reflex actions? Give two examples. Explain a reflex arc.


From where the following nerves arise.

Auditory nerve


Which one is NOT a reflex action? 


Route of reflex arc is ______.


In the given diagram:

  1. Name the parts labelled A, B, and C.
  2. Write the functions of A and C.
  3. Reflex arcs have evolved in animals? Why?


Sensory nerve of a reflex arc carries information from the receptor cells to the ______.


Arrange and rewrite the terms in the group in the correct order to be in a logical sequence beginning with the term that is underlined:

Receptor, Response, Effector, Spinal Cord.


Arrange and rewrite the terms in group in the correct order to be in a logical sequence, beginning with the term that is underlined:

Effector, Receptor, Motor neuron, Sensory neuron.


Name the type of nerve which has the fibres of both sensory and motor neurons.


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