Organization
What is the smallest living part of an organism?
A cell
What is the main structure of the skeletal system?
Bones
What is the main structure of the respiratory system?
The lungs
What is the central organ of the nervous system?
The Brain
How does the muscular system work with the skeletal system?
Humans are _______________ because they are made of more than 1 cell.
Multicellular
A structure that allows bones to bend
A joint
What is the first step of the digestive system?
Chewing / The Mouth
What is the central organ of the circulatory system?
The Heart
How does the nervous system work with the muscular system?
The brain sends signals to the muscles to move them.
What structure makes up an organ?
Tissue
A soft tissue that allows bones to slide smoothly across one another
Cartilege
What is the diaphram?
A muscle that expands the lungs
What is the function of nerves?
They carry signals to and from the brain.
How does the circulatory system work with the digestive system?
The circulatory system transports nutrients from the digestive system to the rest of the body.
Why do humans have multiple cells?
Human cells have different jobs. They are specialized.
The type of muscle that moves the heart
Cardiac muscle
Which structure of the digestive system extracts energy from food?
The small intestine
What is the function of veins?
They are blood vessels that carry blood back to the heart.
How does the respiratory system work with the muscular system?
The respiratory system gather Oxygen that the muscles need to function, as well as removing Carbon dioxide that is harmful to muscles.
Why is a human cell unable to survive on its own?
What do the bones do for the muscles?
The bones give the muscles a place to hold onto.
Specifically, what is the function of the alveoli in the lungs?
Gas exchange: take in Oxygen and remove carbon Dioxide.
What is the function of capillaries?
Capillaries are small, thin blood vessels that allow for the exchange of gases and nutrients.
How does the skeletal system work with the circulatory system?
Bone marrow in the skeletal system makes new blood cells for the circulatory system.