Moving Materials 1

Which of the following are NOT part of the respiratory system?

• Nose and Pharynx

• Atria and Ventricles

• Trachea and Bronchi

• Bronchioles and Alveoli

What is the main organ of the respiratory system?

• lungs

• Heart

• Stomach

• Skin

Oxygen moves between the respiratory system and the circulatory system when it

transfers from ______to ______.

• bronchi, trachea

• bronchi, capillaries

• alveoli, capillaries

• capillaries, veins

The tube-like organ that connects the pharynx to the bronchi is the:

• Bronchioles

• Diaphragm

• Alveolus

• Trachea

In which part of the respiratory system, gas exchange takes place?

• Diaphragm

• Villi

• Bronchi

• Alveoli

Upon inhalation, the diaphragm contracts or ________, and _______  moves into the lungs

• moves down, oxygen gas

• moves down, carbon dioxide

• moves up, oxygen gas

• moves up, carbon dioxide

Upon exhalation, the diaphragm relaxes and moves up.

• True

• False

The bronchioles end in tiny air sacs called:

• Villi

• Alveoli

• Lungs

• Bronchi

The two narrower tubes that lead into the lungs are:

• Atria

• Diaphragm

• Trachea

• Bronchi

The circulatory system works with the ___________ system to provide our body with oxygen.

• excretory

• skeletal

• digestive

• respiratory