Respiratory and Circulatory Systems Flashcard

Front

What blood vessel carries blood from all parts of the body to the heart?

Back

Vena cava

Front

Which statement about the circulatory system is false?

Back

Blood in the pulmonary artery is oxygenated.

Front

What structure is responsible for the movement of the chest cavity during breathing?

Back

Diaphragm and rib muscle

Front

Define the relationship between the respiratory system and the circulatory system.

Back

Respiratory system allows gas exchange between cells and environment; circulatory system moves materials including oxygen and nutrients between body systems.

Front

Which statement about the human respiratory system is false?

Back

The bronchioles branch into bronchi.

Front

What is the primary function of the diaphragm?

Back

To assist in the breathing process by changing the volume of the chest cavity.

Front

What is the role of the aorta in the circulatory system?

Back

The aorta carries oxygenated blood away from the heart to the body.

Front

What is gas exchange and where does it occur?

Back

Gas exchange is the process of oxygen entering the blood and carbon dioxide leaving; it occurs in the alveoli.

Front

What is the function of the pulmonary veins?

Back

To carry oxygenated blood from the lungs to the heart.

Front

What is the difference between oxygenated and deoxygenated blood?

Back

Oxygenated blood contains oxygen and is bright red; deoxygenated blood lacks oxygen and is darker.