It is the organ in fishes where oxygen is absorbed from water.
What are the gills?
This is the most important part of the Circulatory System
What is the HEART!
This is the scientific name for the windpipe, the tube that connects the pharynx and larynx to the lungs.
What is the trachea?
After traveling down the esophagus, food stops here and is mixed with strong acids.
What is the stomach?
Running parallel to the food tube, this pipe brings oxygen to the lungs.
What is the trachea?
The heart moves this throughout the body.
What is blood?
It is the main waste product of cellular respiration that is exhaled from the body.
What is carbon dioxide?
In this tube you will find the solids remaining, after food nutrients are absorbed into the blood stream.
What is large intestine?
The bones that protect the lungs from possible injury.
What is the rib/rib cage?
The tubes which carry blood from the heart to the rest of the body.
What are the arteries?
When the diaphragm relaxes and returns to its dome shape, it causes this process of breathing out.
What is expiration or exhalation?
What is the purpose of the digestive system?
To extract nutrients from food, and get rid of waste.
What is the purpose of the respiratory system?
To fuel the body with oxygen and remove carbon dioxide.
What is the purpose of the circulatory system?
To circulate blood to all parts of the human body.
The part of food used by the body to support healthy cells.
What are nutrients?
This large, dome-shaped muscle contracts and flattens during inhalation, increasing the volume of the chest cavity.
What is the diaphragm?
It is the digestive organ where nutrients are absorbed into the bloodstream.
What is the small intestine?
There are about 300 million of these in each lung.
What is alveoli?
The human heart has how many chambers?
What is 4
It is the tiny holes in leaves of plants where carbon dioxide enters for photosynthesis.
What is stomata?