What is a system?
A group of parts working together as a whole.
What do all body parts need to function?
Oxygen, water, and food.
Name the 5 body systems you need to know.
Digestive, Respiratory, Circulatory, Skeletal, Muscular.
What is the function of the digestive system?
The function of the digestive system is to break down food into simpler substances and absorb them into the bloodstream.
Name the main parts of the digestive system.
Mouth, gullet, stomach, small intestine, large intestine, anus.
Where does digestion begin and end?
Digestion begins in the mouth, ends in the small intestine.
What is the function of the respiratory system?
The function of the respiratory system is to absorb oxygen into the blood and remove carbon dioxide.
Which organ is mainly used for respiration?
Lungs.
What is the function of the circulatory system?
The function of the circulatory system is to carry oxygen and digested food to the body and remove waste.
What are the main organs of the circulatory system?
Heart and blood vessels.
What are the functions of the skeletal system?
The function of the skeletal system is to give the body shape, support the body and protect vital organs
Which organs does the skull, ribcage, and backbone protect?
Skull protects brain.
Ribcage protects heart and lungs.
Backbone protects spinal cord.
What are animals with backbones called?
Vertebrates.
What are animals without backbones called?
Invertebrates.
What is the function of the muscular system?
The muscular system helps movement and produces heat.
Do all muscles attach to bones?
No. The heart and stomach are made of muscles not attached to bones.
Which 3 systems work together to provide the body with oxygen, water, and food?
Digestive, Respiratory, Circulatory.
Which 2 systems work together to allow movement?
Skeletal and Muscular.
