Respiratory and Circulatory Systems Quiz

Why is the lung considered as the primary organ of the respiratory system?

• Because it is the largest organ of the system.

• Because it has two parts: the right and left lungs.

• Because it is located near the middle of the chest cavity.

• Because it contains the alveoli that is responsible for gas exchange.

Which of the following statements about the human respiratory system is false?

• The bronchioles branch into bronchi.

• Alveolar ducts connect to alveolar sacs.

• When we breathe in, air travels from the pharynx to the trachea.

• Gas exchange between the lungs and blood takes place in the alveolus.

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

• Bronchi and trachea

• Larynx and pharynx

• Nasal cavity and pharynx

• Diaphragm and rib muscle

Which is the order of airflow during inhalation?

• Nasal cavity, trachea, larynx, bronchi, bronchioles, alveoli.

• Nasal cavity, larynx, trachea, bronchi, bronchioles, alveoli.

• Nasal cavity, larynx, trachea, bronchioles, bronchi, alveoli.

• Nasal cavity, trachea, larynx, bronchi, bronchioles, alveoli.

Which of the following statements about the circulatory system is false?

• Blood in the aorta is oxygenated.

• Blood in the pulmonary vein is oxygenated.

• Blood in the pulmonary artery is oxygenated.

• Blood in the inferior vena cava is deoxygenated.

Which is the main organ of circulation?

• Blood C. Capillary

• Heart D. Blood vessels

How do arteries differ from veins?

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

• Aorta

• Vena cava

• Pulmonary vein

• Pulmonary artery

What type of circulation is responsible for removing oxygen-depleted blood cells from the heart going to the lungs to receive proper amount of oxygen?

• Open circulation

• Coronary circulation

• Systemic circulation

• Pulmonary circulation

Which best defines this pair of words: Respiratory system: Circulatory system?

• Gets the oxygen needed by the cells: Delivers the oxygen to the cells

• Ingests food and breaks it down into usable nutrients: Excretes solid waste products

• Cleans dissolved waste products from the blood and excretes them: Excretes solid waste products.

• Moves materials between body systems, including oxygen, nutrients, hormones, and waste products: Allows gas exchange between cells and environment