respiratory system

What is the purpose of the respiratory system?

• takes in oxygen and releases nitrogen

• takes in carbon dioxide and releases oxygen

• takes in oxygen and releases carbon dioxide

• takes in nitrogen and releases oxygen

It is the network of organs and tissues that help you breathe.

• digestive system

• nervous system

• circulatory system

• respiratory system

Muscle that helps your lungs pull in air and push it out.

• diaphragm

• alveoli

• heart

• trachea

Tiny air sacs in the lungs where the exchange of oxygen and carbon dioxide takes place.

• bronchioles

• lung lobes

• alveoli

• capillaries

It is also called as your windpipe.

• Larynx

• Lung

• trachea

• Bronchi

When you exhale, the diaphragm

• moves upwards

• moves downwards

• flattens

• none of the above

Which 2 substances are exchanged in the Respiratory System?

• oxygen and nitrogen

• carbon dioxide and oxygen

• oxygen and glucose

• glucose and carbon dioxide

The main purpose of the respiratory system is to helps us breathe.

• True

• False

The respiratory system brings in _______from the air.

• carbon dioxide 二氧化碳

• fresh air新鲜空气

• oxygen氧气

Tags

NGSS.MS-LS2-3

The respiratory system removes_______from our body.

• carbon dioxide二氧化碳

• oxygen 氧气

• fresh air 新鲜空气