Respiratory system
This is the main organ of the respiratory system where gas exchange takes place.
The lungs
These are the two upper chambers of the heart that receive blood entering the heart.
Atria (singular: Atrium)
This iron-rich protein molecule found in red blood cells carries oxygen from the lungs to body cells.
Hemoglobin
The respiratory system interacts with this system to transport oxygen to all the cells in the body.
Circulatory system
This condition involves the buildup of fatty deposits (plaque) on the walls of the arteries.
Atherosclerosis
This is a large muscle below your lungs that contracts and relaxes to move air in and out of the lungs.
Diaphragm
These are the thick-walled blood vessels that carry blood away from the heart.
Arteries
These small, irregularly shaped pieces of cells help stop bleeding by clumping together to form a plug.
Platelets
When you exercise, the blood carries this type of energy to the skin's surface to help regulate body temperature.
Thermal energy
This respiratory disease happens when the walls of the alveoli are damaged, usually due to smoking.
Emphysema
These are the microscopic sacs at the end of the bronchioles where oxygen and carbon dioxide are actually exchanged.
The alveoli
This specific type of circulation supplies blood to all the cells of the body except the heart and lungs.
Systemic circulation
This is the yellowish, liquid part of blood that transports nutrients, hormones, and waste.
plasma
During this process, oxygen and sugars react inside cells to release energy that the body can use.
Cellular respiration
This occurs when a part of the heart muscle dies or is damaged because it does not receive enough oxygen.
Heart attack
This tubelike passageway at the top of the throat receives air, food, and liquids from the mouth or nose.
Pharynx
These tiny blood vessels have walls only one cell thick, allowing molecules to be exchanged between blood and body cells.
Capillaries
These blood cells protect your body from illness and infection by attacking viruses, bacteria, and fungi.
White blood cells
The circulatory system works with this system to transport nutrients absorbed from food to body cells.
Digestive system
This can happen when a blood vessel in the brain is blocked or bursts, preventing the brain from receiving oxygen.
stroke
These are the two narrower tubes that the trachea branches into as it enters the lungs.
Bronchi
This type of circulation is the network of vessels that supplies blood to the cells of the heart itself.
Coronary circulation
This is a protein on red blood cells that determines if a person's blood type is "positive" or "negative."
Rhesus factor
This flap of tissue at the lower end of the pharynx keeps food and liquids from entering the rest of the respiratory system.
Epiglottis
This blood disorder occurs when a person has low numbers of red blood cells or does not have enough hemoglobin.
Anemia