Circulatory & Respiratory Systems Flashcard

Front

What is the primary function of the heart?

Back

The primary function of the heart is to pump blood throughout the body, delivering oxygen and nutrients to tissues and removing waste products.

Front

Describe the pathway of blood flow through the heart.

Back

Blood flows from the body into the right atrium, then to the right ventricle, which pumps it to the lungs. After oxygenation, blood returns to the left atrium, moves to the left ventricle, and is pumped out to the body.

Front

What are the main components of the circulatory system?

Back

The main components of the circulatory system include the heart, blood vessels (arteries, veins, and capillaries), and blood.

Front

What is the role of the respiratory system?

Back

The respiratory system is responsible for taking in oxygen and expelling carbon dioxide, facilitating gas exchange in the lungs.

Front

What is the process of gas exchange in the lungs called?

Back

The process of gas exchange in the lungs is called respiration.

Front

What are the major organs of the respiratory system?

Back

The major organs of the respiratory system include the nose, pharynx, larynx, trachea, bronchi, and lungs.

Front

How do the circulatory and respiratory systems work together?

Back

The circulatory and respiratory systems work together by transporting oxygen from the lungs to the body and returning carbon dioxide from the body to the lungs for exhalation.

Front

What is the difference between arteries and veins?

Back

Arteries carry oxygenated blood away from the heart to the body, while veins carry deoxygenated blood back to the heart.

Front

What is the significance of capillaries in the circulatory system?

Back

Capillaries are small blood vessels where the exchange of oxygen, carbon dioxide, nutrients, and waste occurs between blood and tissues.

Front

What is the diaphragm's role in respiration?

Back

The diaphragm is a muscle that contracts and relaxes to facilitate breathing by changing the pressure in the thoracic cavity.