Circulatory and Respiratory Anatomy Practice Problems

Which of the following is not a part of the circulatory system?

Determine the correct pathway of air from the nasal cavity to the alveoli.

Why do lungs have a large number of alveoli?

Which of the following epithelial cells lines the trachea?

Gas exchange between air and blood occurs in which of the following structures?

The sheet of muscle that separates the thoracic and abdominal cavities is called:

In the pulmonary circuit, the blood is circulated between:

Hemoglobin is important in transferring oxygen from the lungs to the tissues in order to sustain muscle functions. However, animals in the Arctic can still do their activities even without hemoglobin. What could be the reason for the hemoglobin independence among these animals?

Why are open circulatory systems advantageous to some animals?

The exchange of gases during organismic respiration is carried out only by diffusion. Respiratory gases are exchanged between body fluid and an outside medium which may be water or air. The air is a better respiratory medium than water because:

In cockroaches, ______ spiracles are present in the thoracic and abdominal regions,, respectively.

Deoxygenated blood will be present in all of the following except:

Which of the following has blood flow directed into two circuits?

The _________ carries deoxygenated blood from the heart to the lungs.

What do a vertebrate's lungs and a fish's gills have in common?

Insect blood does not play a role in oxygen transport because it lacks:

The special extracellular matrix that composes the liquid part of blood is called:

Tiny vessels with walls only one-cell thick with a diameter roughly equivalent to that of an erythrocyte are called:

Identify the correct order of flow of a blood clot that forms inside an arm vein and travels to the lung capillary bed, where it may block blood flow.

Which of the following is the only site of exchange of materials between blood and tissue cells?

Which of the following prevents backflow of blood from the left ventricle to the left atrium?

Identify the incorrect statement about double circuit circulation.

Which of the following organisms has a closed circulatory system?

Which of the following blood vessels delivers deoxygenated blood into the right atrium of the heart?

What will happen if a 12-meter-tall hypothetical organism has a three-chambered heart?