Question

material that may be provided.
Passage
Structures in the inner ear called the "labyrinths" regulate posture by sending signals to the brain indicating
our position in space from moment to moment. When the labyrinths are not functioning properly, because of
a virus (viral labyrinthitis) or other infection, or because their blood supply is reduced by arteriosclerosis of
the arteries feeding them, the result is dizziness or vertigo. Such an attack is often so sudden and severe
that the victim may not even be able to raise his or her head off a pillow. The viral variety usually follows a
cold and clears up in a few days.
Question
The primary purpose of the passage is to
O explain the structure of labyrinths
O present some effects of viruses on the functioning of the arteries
O distinguish between viral infections and arteriosclerosis
O describe what happens when labyrinths do not function as they should

Answer 1

The primary purpose of the passage is to:

• Describe what happens when labyrinths do not function as they should

What is the main idea of the passage?

The main idea of the passage is to explain what happens when the labyrinths no longer function properly.

The author started out by describing how the labyrinths help the body maintain a correct posture. He also explained that an infection could be a possible reason for the labyrinth's inability to function properly.

The author went on to describe all the factors that might go wrong due to the malfunctioning of the labyrinths. Dizziness or vertigo is one of those effects.

Also, the inability of blood to reach the labyrinths might result in its defect. The aftereffects are so serious and one of the accompanying ugly effects is a restriction of movement.

So, the main point that the author wants the reader to see is that there are bad consequences that arise when the labyrinths do not function normally. Therefore, option D is correct.

Learn more about the primary idea of a passage here:

https://brainly.com/question/2061982

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