Circulatory System
This organ pumps blood throughout your body.
The heart
The tubes that branch from the trachea into each lung are called this.
Bronchi
You eat a sandwich. Your stomach breaks down the food, nutrients are absorbed into the blood, and those nutrients are delivered to your cells.
Digestive system and circulatory system.
Pancreas
Digestive System
This process allows plants to make their own food using sunlight.
photosynthesis
These vessels carry blood away from the heart
Arteries
The windpipe that carries air to your lungs is called this.
Trachea
You touch something hot. Your hand pulls away immediately before you even think about it.
Nervous and Muscular
Muscular
The galaxy that contains our solar system.
The Milkyway
These cells fight infection.
White Blood Cells
This gas is a waste product your lungs expel after your body uses oxygen.
Carbon Dioxide
You take a deep breath while exercising. Oxygen moves into your blood, and carbon dioxide is removed.
Respiratory and Circulatory
Platelet
Circulatory
Who invented the lightbulb
Thomas Edison
The largest artery in the body that carries blood directly from the heart.
Aorta
This muscle helps you inhale by moving downward to expand the chest cavity.
Diaphragm
A ball is thrown to you. Your eyes see it coming, your brain processes the information, and your hand reaches out to catch it.
Nervous and Muscular
Somatic
Nervous System
The part of an experiment that is changed to test a hypothesis.
independent variable
High blood pressure is also called this.
Hypertension
These tiny air sacs in the lungs are where oxygen enters the blood.
Alveoli
You’re cold outside. Your body shivers to keep warm, and your heart rate increases to circulate blood faster.
Muscular and Circulatory
Neuron
Nervous System
The supercontinent that existed millions of years ago.
Pangaea