Question 1

All parts of the body are run by the nerves. When the skin irritates the neuron cells transmit the message through the peripheral nervous system to the spinal cord and the brain. The brain sorts the information and chooses how to respond. It sends information to the muscles for action. Which of the following pass on messages from one organ to another?

10

B. Neuron

A. Brain

C. Spinal Cord

D. Peripheral Nervous System

Accepted Answer

B. Neuron

Answer

A. Brain

Answer

C. Spinal Cord

Answer

D. Peripheral Nervous System

Question 2

Which of these distributes nutrients to the different body cells?

Accepted Answer

A.blood

Answer

C. heart

Answer

D. small intestine

Answer

B. blood vessel

Question 3

How can the skin protect the muscles?

Accepted Answer

D. Skin is attached to the muscles and serves as a protective covering against microorganisms and foreign substances

Answer

A. It engulfs the microorganisms.

Answer

C. It forms a network of fibers to protect the muscles.

Answer

B. It regulates the movement of the muscles.

Question 4

In which part of the respiratory system does exchange of oxygen and carbon dioxide take place?

Accepted Answer

C. lungs

Answer

A. nasal cavity

Answer

B. pharynx

Answer

D. Heart

Question 5

Why are the cilia and the mucus membrane important in the respiratory system?

Accepted Answer

C. They cleanse and warm the air before it reaches the lungs.

Answer

A. They make the respiration process faster.

Answer

D. They enable the blood to carry oxygen.

Answer

B. They push the air into the lungs.

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