Question

put the following in order to describe the flow of a blood cell through the pulmonary circuit. start at the top with the first vessel the blood enters as it leaves the right ventricle. instructions left atrium pulmonary veins alveolar capillaries lobar arteries pulmonary trunk

Explanation:

Step1: Recall Pulmonary Circuit Flow

The pulmonary circuit starts with blood leaving the right ventricle into the Pulmonary trunk.

Step2: Next Vessel

From the pulmonary trunk, blood goes to the Lobar arteries (which branch from the pulmonary trunk to supply the lungs).

Step3: Capillary Exchange

Then, blood moves into the Alveolar capillaries where gas exchange occurs (oxygen uptake, carbon dioxide release).

Step4: Return to Heart

After gas exchange, oxygenated blood is carried back to the heart via the Pulmonary veins.

Step5: Final Chamber

The pulmonary veins deliver blood to the Left atrium, which is the last step in the pulmonary circuit before blood enters the left ventricle for systemic circulation.

Answer:

1. Pulmonary trunk
2. Lobar arteries
3. Alveolar capillaries
4. Pulmonary veins
5. Left atrium