These two large organs are used to accept oxygen from the air you breathe
What are the lungs
What is the main chemical we pull out of the air in order to live?
What is oxygen
The name of one of the lower chambers of the heart, used to send blood out of the heart
What is a ventricle
This specialized cell is used to pass oxygen throughout the body, and return carbon dioxide (CO2)
What is a red blood cell
These are the two large tubes which enter your lungs, carrying air from the upper respiratory tract into your lungs
What are the bronchi
What gas is released back into the air, after it has passed through our lungs?
What is carbon dioxide (CO2)
The name of an upper chamber of the heart, used to receive blood
What is an atrium
Some creatures use a system which pumps blood into chambers that indirectly access the outside world. What is this system called?
What is an open circulatory system.
These small sacs of flesh are used to collect air, allowing it to pass through into the blood stream, and receiving carbon dioxide (CO2)
What are alveoli
This substance is found in the air as a vapor, and is usually a small percent of the air content, but we commonly drink this substance to survive
What is water
This flap of material is used to stop the back flow of blood within both the heart and veins
What is a valve
When hearts need to be transplanted, this newer method of sustaining the heart is better than putting it in an ice box, as it allows the heart to continue functioning while in transport.
What is heart in a box.
These are the small tubes inside your lungs. There are many of them, as they need to allow oxygen throughout the lungs
What are bronchioles
The air is naturally very dirty, as it is filled with contaminants and illnesses. This part of the body acts as the great filter for the lungs.
What is the nose, what is the nasal cavity, what are the nostrils.
This major blood vessel sends blood throughout the body, as it leaves the heart.
What is the aorta
The heart has two phases when pumping blood. One which pools blood inside the chambers, and one which sends the blood out. What are these two phases?
What are the systole and diastole phases.
This large muscle is the base of the lungs; supporting it and helping them expand and contract.
What is the diaphram
This chemical is what makes up most of air. It doesn't mix with the other materials found in the air, which allows our bodies to effectively 'ignore' this substance when we breathe.
What is nitrogen
This pair of veins pulls blood towards the heart, and gives it deoxygenated blood to send to the lungs.
What are the Superior Vena Cava, and Inferior Vena Cava
Evolution has caused the heart in animals to change over time as needs changed. The heart needed to diversify to more effectively pump blood and oxygen throughout the body. What was one of the major changes to this system?
What is the four chambered heart.