Circulatory System
Why do we need the circulatory system?
The circulatory system is important because it brings blood to all parts of our bodies.
Why is the brain important?
It is the control center of the body. It tells us how to think, act, and move.
What are the three types of muscle in our body?
1. Smooth
2. Skeletal
3. Cardiac
What does the skull protect?
The brain!
Skeletal muscle attached to bones
Name the four parts of the circulatory system.
1. Heart
2. Arteries
3. Veins
4. Blood
What is the spinal cord connected to?
The spinal cord is connected to the brain.
What is cardiac muscle and why is it important?
It is the muscle that makes up our hearts. It is important because it helps our heart beat and push blood to our bodies to keep us alive.
What are the three parts of the skeletal system?
1. Bones
2. Cartilage
3. Ligaments
Name one way that the nervous system and muscular system work together.
Skeletal muscle controlled by brain.
Nerves carry messages from brain to control cardiac muscle and smooth muscle.
Name what we breathe in when we inhale and name what we breathe out when we exhale.
Oxygen
Carbon dioxide
Why are the nerves important?
Why is skeletal muscle important?
Skeletal muscle is attached to our bones so it helps us move our bodies.
Cartilage is soft and flexible and can be found between our bones. It stops our bones from rubbing against each other so we can move without pain.
Name one way that the muscular system and circulatory system work together.
Smooth muscle with circulatory system
Cardiac muscle pumps blood to body
After the arteries bring blood with oxygen and nutrients to our bodies, where does the blood go?
The blood goes to the veins and the veins carry the blood back to the heart.
Where can we find nerves in our bodies?
Nerves are everywhere in our bodies. They need to be able to send messages from the brain and spinal cord to all parts of our bodies.
What kinds of muscles can we control? What kinds of muscles can we not control?
We can control skeletal muscle. We cannot control cardiac muscle or smooth muscle.
Where would you find ligaments in the body? Why are ligaments important?
You find ligaments between bones. Ligaments hold bones together and help us bend our bodies and move.
What is the tail bone?
The tail bone is the last part of the spine. It is a very small bone at the bottom of our spine.
What is the path of blood in the circulatory system?
Blood is pumped out of the heart and into the arteries. It travels through the arteries and then goes to the veins. The veins bring blood back to the heart.
Name the three main parts of the nervous system and tell us why they are each important.
2. Spinal cord- the spinal cord is connected to the brain and helps us move.
3. Nerves- Nerves send messages from the spinal cord and brain to the rest of our body to help us move and feel.
Name the four main places that you can find smooth muscle. Tell us what the smooth muscle does in each of these places.
Intestines- pushes food through our bodies so we can get nutrients.
Veins- pushes blood through the body, back to the heart.
Arteries- pushes blood through so it can go to different parts of the body.
We have lots of bones in our bodies. What are the two main jobs of the bones in our bodies? Give two examples of how the bones in our bodies do these jobs.
The two jobs that bones have are to protect our organs and give our bodies shape.
The humerus and femur give our bodies shape and structure.
The skull, ribs, sternum, and spine protect our important organs.
What are capillaries and what do they do?
Capillaries are small blood vessels that come from veins and arteries. They help bring blood to all parts of the body and organs.