2. Which of these statements DOES NOT describe the trachea?
A It is also called the voice box
B. It carries air to and from the lungs
c Its lower end branches into smaller tubes
D. It contains rings of cartilage that prevent it from collapsing
3. What happens to the diaphragm when we inhale?
A Contracts and flattens out
C. Relaxes and flattens out
B. Relaxes and moves up
D. Contacts and moves out
4. From what source do cells get their food?
A Blood
B. Oxygen
C. Carbon dioxide D. Other
5. Which type of blood vessels carries blood away from the heart?
A. Veins
B. Arteries
C. Capillaries
D. All of
above
6. Why is oxygen important to blood and to the cells?
Oxygen helps the blood to clot.
Answers
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The answers to the given questions are as follows:
1. The statement(A)- It is also called the voice box does not describe the trachea.
The larynx present in the neck area just above the trachea is also called the voice box.
2. (A) When we inhale, the diaphragm contracts and flattens out.
This creates an enlarged chest cavity that helps in taking in air into the lungs.
3. (A) Cells get their food from the blood.
The food that we take in gets digested in our body. All essential nutrients are transported to various parts of the body( to the cells) via blood. Blood also carries the oxygen that the cells require.
4. (B) Arteries carries blood away from the heart.
Arteries carry oxygenated blood from the heart to all the parts of the body.