Cardiovascular and Respiratory Systems Review

Which substances are produced during respiration?

• water and oxygen
• oxygen and red blood cells
• carbon dioxide and water

Where in the respiratory system does gas exchange occur?

• trachea
• alveoli
• heart

The role of the respiratory system is to bring what substance into the body?

• oxygen
• carbon dioxide

During gas exchange, which substance moves from the alveoli into the blood? 

• carbon dioxide 
• oxygen

What happens to cause air to be exhaled from the lungs 

• the rib muscles contract and move outward.
• then chest cavity expands and growss larger
• the diaphragm relaxes and moves upward

A tumor that develops in the lungs may be a sign of

• bronbchitis
• lung cancer
• heart disease
• emphysema

Which part of the respiratory system divide into smaller and smaller tubes in a pattern that resembles the branches of a tree?

• pharynx
• trachea
• bronchi
• epiglottis

hair like structures that line the nasal cavities and trachea are called

• cilia
• mucus
• bronchi
• capillaries

Each alveolus is surrounded by a network of

• cilia
• veins
• arteries
• capillaries

The vocal cords stretch across the opening of the

• diaphragm
• larynx
• bronchi
• pharynx