Question

drag each tile to the correct box.
arrange the sentences in order to describe how oxygen from air is transported to the cells in the kidneys.
the air diffuses into the capillaries surrounding the alveoli.
the pulmonary veins carry oxygenated blood to the heart.
air enters the bronchioles in the lungs and reaches the alveoli.
the capillaries join together to reach the pulmonary arteries, transferring the oxygen.
the oxygen - rich blood moves from the aorta and reaches the kidneys through a series of blood vessels.
the left atrium fills with oxygen - rich blood and contracts to fill the left ventricle.

Explanation:

To determine the correct order, we follow the path of oxygen from inhalation to delivery to kidney cells:

1. Air enters bronchioles and alveoli: First, air travels through the respiratory tract to the alveoli (where gas exchange occurs).
2. Diffusion into alveolar capillaries: Oxygen diffuses from alveoli into surrounding capillaries.
3. Capillaries join pulmonary arteries: Oxygenated blood moves from capillaries to pulmonary arteries (note: correction—pulmonary veins carry oxygenated blood to the heart, but the step here describes capillaries transferring oxygen to vessels leading to the heart).
4. Pulmonary veins carry blood to heart: Oxygenated blood is transported from the lungs to the heart’s left atrium.
5. Left atrium to left ventricle: The left atrium contracts, filling the left ventricle (preparing for systemic circulation).
6. Oxygen-rich blood reaches kidneys: Blood is pumped from the left ventricle to the aorta, then to the kidneys via blood vessels.

Correct order (step-by-step):

1. Air enters the bronchioles in the lungs and reaches the alveoli.
2. The air diffuses into the capillaries surrounding the alveoli.
3. The capillaries join together to reach the pulmonary arteries, transferring the oxygen. (Note: The phrasing is slightly off—pulmonary veins carry oxygenated blood to the heart, but the logical flow here connects capillaries to vessels leading to the heart.)
4. The pulmonary veins carry oxygenated blood to the heart.
5. The left atrium fills with oxygen - rich blood and contracts to fill the left ventricle.
6. The oxygen - rich blood moves from the aorta and reaches the kidneys through a series of blood vessels.

Answer:

1. Air enters the bronchioles in the lungs and reaches the alveoli.
2. The air diffuses into the capillaries surrounding the alveoli.
3. The capillaries join together to reach the pulmonary arteries, transferring the oxygen.
4. The pulmonary veins carry oxygenated blood to the heart.
5. The left atrium fills with oxygen - rich blood and contracts to fill the left ventricle.
6. The oxygen - rich blood moves from the aorta and reaches the kidneys through a series of blood vessels.