The human body is very complex. The skeletomuscular system, the nervous system, and the cardiovascular system are just part of what the body needs to move and survive. We also need energy.
The information learned from the nerves in your feet is sent through the nerves in your legs and body to the brain, and the brain sends back commands to your muscles and bones so you can run.
Your brain also needs to know where to go —it needs information from
your eyes.
As living organisms, the different systems
and structures of our body work together to allow us to move and react to things around us.
Your foot isn’t just a structure of bone and muscle; it also contains blood vessels that
carry oxygen-rich blood to your muscles so they can move and many nerves that feel the surface that you are standing or moving on.
Skeletomuscular System
This system provides form, support, and movement to the body.
What makes up this system?
bones
muscles
ligaments
Cardiovascular System
This system uses the heart and blood vessels to move blood, which carries oxygen, through the body.
What makes up this system?
blood cells
the heart
veins (carry blood to the heart)
arteries (carry blood away from
the heart)
Nervous System
This system uses the brain and nerves
to control the body and communication between all the parts of the body.
What makes up this system?
the brain
nerves
sensory organs that send
information about your surroundings
to the brain—your eyes, ears, and your skin’s sense of touch
Digestive System
The digestive system includes your stomach, which processes food and
turns it into the energy your body
needs to run.
What makes up this system?
esophagus
stomach
small and large intestines
Respiratory System
This system takes in oxygen through the lungs and moves it into the blood to be carried around the body. Blood carries carbon dioxide back to the lungs to be exhaled.
What makes up this system?
nose blood cells
mouth lungs
trachea
The structures of the human body almost never act alone. When doing some sort of physical activity, the structures of the human body work together in systems to get the job done.
