How do circulatory system and respiratory systems work together?

• Air moves in and out of the lungs through the trachea , bronchi, and bronchioles.

• Blood moves in and out of the lungs through the pulmonary arteries and veins that connect to the heart

• The circulatory and respiratory systems work together through absorbing oxygen from the air and transfer it to all parts of the body while absorbing carbon dioxide from the body and releasing it into the air.

• All of the above

Why is oxygen important to blood and to the cells?

• Oxygen helps the blood to clot

• Oxygen is necessary for cell growth and energy.

• Oxygen brings food to the cells.

• Oxygen is not important -- carbon dioxide is the most important substance to the body.

Which type of circuit/ circulation is responsible for the movement of blood from the heart to the lungs and back to the heart?

• Pulmonary Circulation

• Coronary Circulation

• Systemic Circulation

• All of the above

What is the main function of the blood in circulatory system?

• Pumps the blood throughout the body

• Where the carbon dioxide is absorbed

• Where the exchange of gases and nutrients take place

• Carries the gases, nutrients and other molecules to and from the different parts of the body

Which of the following choices is the function of the respiratory system?

• absorption of nutrients

• transport of oxygen

• gas exchange

• skeletal support

All of the following are true about human circulatory system except _____

• Veins have thinner walls than arteries

• The atria pump blood out of the heart

• Heart rate changes in response to our physical activity

• White blood cells help fight microbes that may cause diseases

A baby swallows her food and accidentally, it does not enter the esophagus. What structure does not function properly and diverted the food into the respiratory tract instead of the esophagus?

• trachea

• epiglottis

• larynx

• bronchus

Which of the following statements is NOT part of exhalation?

• The ribcage contracts inward

• The volume of the chest cavity decreases

• The diaphragm contracts and pulls downward

• The pressure within the chest cavity increases

The lungs bring ______ into the body, and eliminates _____ from the body.

• carbon monoxide, oxygen

• oxygen, carbon dioxide

• carbon monoxide , carbon dioxide

• oxygen , carbon monoxide

Which of the following blood vessels is responsible in carrying deoxygenated blood to the heart?

• Arteries

• Veins

• Capillaries

• None of the above