Digestive
What structure is the starting point of digestion?
Mouth
What is the main function of the muscular system?
Movement
What organ pumps blood through the body?
Heart
TRUE OR FALSE: All human body systems work together.
TRUE!
What transports essential materials to all parts of the body?
Blood
What is the name of the long tube that sends food from the mouth to the stomach?
Esophagus
What is the main function of the nervous system?
Sending signals from the environment to the brain and back.
What two essential materials are carried through the blood to the body?
Oxygen and nutrients.
A group of specialized cells working together in the body are is called...
Tissue
What is the main organ in the respiratory system?
Lungs
What substance in the stomach helps dissolve food?
Stomach acid.
What are the three parts for the nervous system?
Brain, spinal chord, nerves
After entering the right side of the heart, where does blood go?
To the lungs.
What structure turns nutrients from food into energy?
Mitochondria!
A self contained living thing.
Organism
When the small intestine absorbs nutrients, where do the nutrients get sent to?
Bloodstream.
What causes muscles to "burn"?
Lack of oxygen creating lactic acid.
What is the main function of the respiratory system?
Carbon dioxide and oxygen gas exchange.
What is a group of specialized tissues working together called?
Organ
Give an example of a multicellular organism.
Any plant or animal.
What are the tiny structures called that are in the small intestine that absorb the nutrients and leave behind waste?
Villi
What type of cells make up muscular tissue?
Muscle cells
What keeps blood flowing in the correct direction?
Valves
In simple terms, how does the digestive and circulatory system work together.
The digestive system acquires nutrients from food and the circulatory system delivers the nutrients to the rest of the body.
What is the function of the cell membrane?
Letting things (like nutrients) in and out of the cell.