In a reflex arc, the ___ neuron receives signals from _ organs and transmits it via ___ nerve root.

afferent, sensory, dorsal

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efferent, sensory, ventral

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afferent effector, dorsal

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efferent, effector, ventral

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Solution

The correct option is A afferent, sensory, dorsal
Reflex arc is the pathway taken by nerve impulse generated at the receptor by a stimulus to reach the effector organ during a reflex action.
The afferent neuron receives signal from a sensory organ and transmits the impulse via a dorsal nerve root into the CNS (at the level of spinal cord). The efferent nueuron then carries signals from CNS to the effector. The stimulus and response thus forms a reflex arc.

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In a reflex arc, ______________ connects different neurons together and sends the signal from one neuron to another.

Q. Fill in the blanks with appropriate words.
A neuron receives a nerve impulse through .......... and transmits it through ..........

Which of the following statements are true?
(i) Sudden reaction in response to the stimulus is called the reflex action.
(ii) Sensory neurons carry signals from the spinal cord to the muscles.
(iii) Motor neurons carry signals from the receptors to the spinal cord.
(iv) The path through which signals are transmitted from a receptor to a muscle or a gland is called a reflex arc.

Q. Which of the following statement is/are true?
(i) Sudden action in response to something in the environment is called as a reflex action.
(ii) Sensory neurons carry signals from the spinal cord to muscles.
(iii) Motor neurons carry signals from receptors to the spinal cord.
(iv) The path through which signals are transmitted from a receptor to a muscle or a gland is called as reflex arc.

Q. A nerve impulse leaves a neuron via the

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Standard XIII Biology

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In a reflex arc, the _______ neuron receives signals from _______ organs and transmits it via _____ nerve root.

In a reflex arc, the ___ neuron receives signals from _ organs and transmits it via ___ nerve root.