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Test: Nervous & Muscular Coordination - Class 10 MCQ


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5 Questions MCQ Test Science Class 10 - Test: Nervous & Muscular Coordination

Test: Nervous & Muscular Coordination for Class 10 2024 is part of Science Class 10 preparation. The Test: Nervous & Muscular Coordination questions and answers have been prepared according to the Class 10 exam syllabus.The Test: Nervous & Muscular Coordination MCQs are made for Class 10 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Nervous & Muscular Coordination below.
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Test: Nervous & Muscular Coordination - Question 1

In a nerve impulse, the electrical impulse is caused by:

Detailed Solution for Test: Nervous & Muscular Coordination - Question 1

A nerve impulse is an electrical signal that travels along an axon. There is an electrical difference between the inside of the axon and its surroundings, like a tiny battery. When the nerve is activated, there is a sudden change in the voltage across the wall of the axon, caused by the movement of ions in and out of the neuron. This triggers a wave of electrical activity that passes from the cell body along the length of the axon to the synapse.

Test: Nervous & Muscular Coordination - Question 2

Point out the one which is not a reflex action.

Detailed Solution for Test: Nervous & Muscular Coordination - Question 2

All reflex actions are involuntary in nature but all involutary actions are not reflexes. For example - The beating of heart and peristalsis are involuntary actions, but not reflex action.

Reflex actions ar very quick but all involutary actions may not be quick. 

Reflex actions are usually at the level of spinal cord whereas the involuntary actions generallly involve brain too

Reflex actions are done to meet emergencies where as an involuntary action is not done for emergencies, but to fulfill a critical life process as circulation of blood, movement of food in food pipe, etc.

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Test: Nervous & Muscular Coordination - Question 3

Why are reflex arc connections between input and output nerve made at spinal cord?

Detailed Solution for Test: Nervous & Muscular Coordination - Question 3

When we touch any hot object without knowing it is hot, we immediately throughout the object to safe our hand from burning. We have a sensory nerve in our brain to detect the heat. The nerves that are connected to the muscles of the hand are also connected with the sensory nerves. This connection of detecting the signal from the nerves to the muscles for immediate action is called Reflex Arc. 

Instant and automatic responses are possible by Reflex Arc. The connection between input and output nerves are connected by Reflex Arc and meets in a bundle in the spinal chord. All the nerves on their way to brain meet in a bundle in the spinal chord to send the information to the brain.

Test: Nervous & Muscular Coordination - Question 4

The largest cell in the body is:

Detailed Solution for Test: Nervous & Muscular Coordination - Question 4
  • The female egg cell is the largest cell in the human body. The nerve cell is the longest cell in the body.
  • The egg cell or ovum is the largest cell in the human body.
  • It has a diameter of about 0.1 mm.
  • A nerve cell is the longest cell in the human body
Test: Nervous & Muscular Coordination - Question 5

The part of a neuron where information is acquired is:

Detailed Solution for Test: Nervous & Muscular Coordination - Question 5

Dendrites of the neutron receive the information and it is nothing but it requires information that are part of the neuron family. 

Likewise, the Axon of the neuron information travels as fast as electrical impulse taken by the dentritis action.

It has been emerged with neuron information and travels through the Axon.

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