Test your knowledge of the nervous system with this quiz for ICSE Class 10 stude...

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Questions and Answers

Which structure in the eye is responsible for controlling the amount of light entering the eye?

Iris (correct)
Retina
Pupil
Cornea

Which part of the ear is responsible for maintaining balance and equilibrium?

Auditory nerve
Semicircular canals (correct)
Eustachian tube
Cochlea

What is the function of the lens in the human eye?

To amplify sound waves
To convert light into electrical signals
To transmit visual information to the brain
To refract light and focus it on the retina (correct)

What is the function of the medulla oblongata in the nervous system?

Regulation of heartbeat and breathing (D) Signup and view all the answers

Which part of the brain is responsible for processing emotions and forming memories?

Hippocampus (A) Signup and view all the answers

What is the function of the myelin sheath in the nervous system?

Insulation and speeding up nerve impulses (C) Signup and view all the answers

Flashcards

Iris

The colored part of the eye that controls the amount of light entering the pupil.

Semicircular canals

Three fluid-filled loops in the inner ear that detect head movement and help maintain balance.

Lens

The transparent, flexible structure behind the pupil that focuses light onto the retina.

Medulla oblongata

The lower part of the brainstem responsible for essential bodily functions like breathing and heart rate.

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Hippocampus

The part of the brain that processes emotions, forms new memories, and plays a key role in long-term memory.

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Myelin sheath

A fatty substance that wraps around nerve fibers, insulating them and speeding up the transmission of nerve impulses.

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Study Notes

Eye and Vision

The iris controls the amount of light entering the eye by adjusting the size of the pupil.
The lens focuses light onto the retina, enabling clear vision at varying distances.

Ear and Balance

The vestibular system, which includes the semi-circular canals, is responsible for maintaining balance and equilibrium.

Nervous System Functions

The medulla oblongata regulates vital autonomic functions such as breathing, heart rate, and blood pressure.
The myelin sheath insulates nerve fibers, increasing the speed of electrical impulses and ensuring efficient communication within the nervous system.

Brain and Emotions

The limbic system, particularly the amygdala and hippocampus, is crucial for processing emotions and forming memories.

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Description

Test your knowledge of the nervous system with this quiz for ICSE Class 10 students. Explore topics such as the eye's structure, the role of the lens, the functions of the medulla oblongata, and the brain's involvement in emotions and memories. Sharpen your understanding of the sensory organs and brain functions with this quiz.