Circulatory System
This organ pumps blood throughout the body.
What is the heart?
These organs are responsible for gas exchange.
What are the lungs?
This organ begins the chemical breakdown of food using saliva.
What is the mouth?
This organ controls most body functions and thoughts.
What is the brain?
These structures connect bones to other bones.
What are ligaments?
These blood vessels carry blood away from the heart.
What are arteries?
This muscle contracts to help you inhale.
What is the diaphragm?
This long tube connects the throat to the stomach.
What is the esophagus?
These cells transmit electrical signals throughout the body.
What are neurons?
The type of muscle only found in the heart.
What is the cardiac muscle?
This iron rich protein in red blood cells carries oxygen.
What is hemoglobin?
Tiny air sacs where oxygen enters the bloodstream.
What are alveoli?
This organ produces bile to help digest fats.
What is the liver?
This part of the nervous system includes the brain and spinal cord.
What is the central nervous system?
The adult human body has this many bones.
What is 206?
This part of the heart separates oxygenated and deoxygenated blood.
What is the septum?
This tube, also called the windpipe, carries air to the lungs.
What is the trachea?
Most nutrient absorption happens in this part of the digestive tract.
What is the small intestine?
This system controls involuntary actions like heartbeat and digestion.
What is the autonomic nervous system?
These cells break down old bone tissue.
What are osteoclasts?