Podcast
Questions and Answers
Air fills the alveoli with each exhalation.
Air fills the alveoli with each exhalation.
False (B)
Oxygen moves from the alveoli to the blood.
Oxygen moves from the alveoli to the blood.
True (A)
Capillaries surround the alveolar walls.
Capillaries surround the alveolar walls.
True (A)
Diffusion is the process of air entering the lungs.
Diffusion is the process of air entering the lungs.
Hemoglobin in white blood cells picks up oxygen.
Hemoglobin in white blood cells picks up oxygen.
The heart pumps oxygen-poor blood to the body.
The heart pumps oxygen-poor blood to the body.
Oxygen leaves the hemoglobin and moves into the cells of the body.
Oxygen leaves the hemoglobin and moves into the cells of the body.
Carbon dioxide is carried by hemoglobin to the cells.
Carbon dioxide is carried by hemoglobin to the cells.
The alveoli are tiny air sacs in the lungs.
The alveoli are tiny air sacs in the lungs.
Blood travels from the lungs directly to the brain.
Blood travels from the lungs directly to the brain.
Oxygenated blood is a bluish color.
Oxygenated blood is a bluish color.
The lungs contain only a few alveoli.
The lungs contain only a few alveoli.
Diffusion occurs only in the lungs.
Diffusion occurs only in the lungs.
Hemoglobin is a type of sugar found in blood.
Hemoglobin is a type of sugar found in blood.
The heart has no role in oxygen transport.
The heart has no role in oxygen transport.
Oxygen moves from areas of low concentration to high concentration.
Oxygen moves from areas of low concentration to high concentration.
Capillaries are large vessels easily seen with the naked eye.
Capillaries are large vessels easily seen with the naked eye.
Oxygen is produced in the blood.
Oxygen is produced in the blood.
Blood returns to the lungs after circulating through the body.
Blood returns to the lungs after circulating through the body.
Oxygen travels through the body dissolved directly in the blood plasma.
Oxygen travels through the body dissolved directly in the blood plasma.
Flashcards
Alveoli
Alveoli
Tiny air sacs in the lungs where gas exchange occurs.
Diffusion (in the lungs)
Diffusion (in the lungs)
The process where oxygen moves from the alveoli to the blood.
Capillaries (in lungs)
Capillaries (in lungs)
Tiny blood vessels surrounding the alveoli.
Hemoglobin
Hemoglobin
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Heart
Heart
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Capillaries (throughout the body)
Capillaries (throughout the body)
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Study Notes
- Air fills alveoli with each inhalation
- Oxygen moves from alveoli to blood via diffusion
- Capillaries lining alveolar walls facilitate oxygen movement
- Hemoglobin in red blood cells picks up oxygen in the bloodstream
- Oxygen-rich blood goes to heart and is pumped to the body
- Oxygen leaves hemoglobin and enters cells in capillaries throughout the body
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