Respiratory and Circulatory Systems

The respiratory system is the body system in which _______ exchange takes place.

• blood
• gas
• nutrients
• waste

Which is the correct pathway that blood takes as it leaves the heart, circulates throughout the body, and returns to the heart?

• arterioles, arteries, venules, veins, capillaries
• veins, venules, capillaries, arteries, arterioles
• arterioles, arteries, capillaries, veins, venules
• arteries, arterioles, capillaries, venules, veins

This is an image of the alveoli in the lungs.

• True
• False

Tags

NGSS.MS-LS1-3

The function of the respiratory systems is to bring carbon dioxide into the body and to expel oxygen and water vapor.

• True
• False

Which is the correct pathway of air into the respiratory system?

• nose and mouth, pharynx, trachea, bronchi, bronchioles, alveoli
• nose and mouth, bronchi, trachea, pharynx, bronchioles, alveoli
• alveoli, bronchioles, bronchi, trachea, pharynx, nose and mouth
• pharynx, nose and mouth, bronchioles, bronchi, trachea, alveoli

The diaphragm is a dome-shaped muscle at the base of the rib cage.

• False
• True

The heart is a muscular pump, about the size of your ______, that keeps the blood moving to every part of the body.

• foot
• fist
• face
• finger

In which structure of the respiratory system does gas exchange take place?

• trachea
• bronchioles
• pharynx
• alveoli

The largest structures in your heart are the two chambers.

• False
• True

Which is the correct sequence of blood flow through the heart and lungs?

• left ventricle, left atrium, lungs, right ventricle, right atrium
• right atrium, right ventricle, lungs, left atrium left ventricle
• lungs, right atrium, right ventricle, left atrium, left ventricle
• right atrium, right ventricle, left atrium, left ventricle, lungs