Main Functions of the Systems in the Human Body

The human brain is responsible for which of the following functions?

• Fighting the body’s diseases

• Breaking down food nutrients

• Controlling muscle movement

• Pumping blood through the body

Marissa is making a list of the parts of her body that help her sense the world around her. She knows that her eyes take in light so she can see. Which organ has nerve endings so that she can take in information such as textures and air temperature?

• Heart

• Skin

• Brain

• Lungs

What is the function of the human skeleton?

• The skeleton pumps blood throughout the body, brain, and heart.

• The skeleton protects and defends the human body from diseases.

• The skeleton digests food and makes fuel for the body from the nutrients.

• The skeleton provides a framework for muscles and protects organs.

When Bryce decides to get up and move to another room, he is counting on his body to communicate those messages to his muscles. Which of the following organs is responsible for communicating and controlling the actions of Bryce's movements?

• Brain

• Kidneys

• Heart

• Lungs

In order to provide oxygen and remove carbon dioxide, air must be pumped into and out of which of the following organs?

• Bladder

• Heart

• Brain

• Lungs

An organ system is made up of all the organs in the human body that work together to do a specific job, such as the circulatory system. The heart is part of the circulatory system. What is the main function of the heart?

• Fighting the body’s diseases

• Pumping blood through the body

• Controlling muscle movement

• Breaking down food nutrients

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NGSS.MS-LS1-3

In order to provide oxygen and remove carbon dioxide, air must be pumped into and out of which of the following organs?

• Bladder

• Heart

• Brain

• Lungs

The nutrients in digested food are absorbed into the bloodstream in which of the following organs?

• Heart

• LIver

• Intestines

• Lungs

The stomach, liver, intestines, and pancreas are all organs in the same body system. What is the main function of the stomach?

• Breaking down food nutrients

• Pumping blood through the body

• Controlling muscle movement

• Fighting the body’s diseases