Blood
What are the components in the human blood?
Red Blood Cells, White Blood Cells, Platelets, and Plasma.
What is the main structure of the Circulatory system?
Heart
What is the definition of Artery?
A blood vessel that carries blood away from the heart.
What is heart rate?
Heart rate is how many times your heart beats in a minute.
In the lungs, what waste product does deoxygenated blood exchange for more oxygen?
Carbon Dioxide
Why is plasma important?
It is the liquid part of blood that helps transport cells like nutrients, hormones, and waste products.
What are the four chambers of the heart?
Right atrium, left atrium, right ventricle, and left ventricle.
What is the largest artery in the body?
The Aorta
What are some side effects of having high blood pressure?
Dementia, Strokes, Kidney Failure, and a clot in the neck that can travel to the brain and block an artery.
How does oxygen get into the blood?
When we breathe in, oxygen goes into our lungs. Alveoli help the oxygen get into our blood, where it connects to red blood cells.
What are the two main ways blood moves in the body?
Systemic circulation and pulmonary circulation
What does the heart do?
It pumps blood throughout the body, giving oxygen and nutrients and removing waste products.
What's the difference between veins and arteries?
Arteries carry oxygen-rich blood away from the heart while Veins have valves to stop blood from flowing backward as they bring oxygen-poor blood back to the heart.
How does exercise affect your heart rate and blood pressure?
Excerise helps make your heart stronger which can lower blood pressure and keep it healthy and lower your resting heart rate.
Why are nutrients important for cells?
Nutrients give cells energy to grow, repair themselves, and carry out their functions.
What are red blood cells?
They carry oxygen from the lungs to all the parts of the body and bring back carbon dioxide to the lungs.
How can we keep our heart healthy?
You need to eat nutritious foods, exercise regularly, and manage stress.
Why are artery walls thicker than veins?
Arteries carry blood away from the heart, and the thicker walls help them handle pressure and prevent them from bursting.
How does high blood pressure affect the body?
It makes your heart work harder and can damage your blood vessels.
How do red blood cells carry oxygen?
Red blood cells have a protein called hemoglobin in in them that grabs oxygen in the lungs and carries it to all the parts of the body.
What's the difference between oxygenated and deoxygenated blood?
Oxygenated blood has lots of oxygen and comes from the lungs, while deoxygenated blood has less oxygen and comes from the body.
How does blood flow through the heart?
Blood flows into the right atrium from the body, moves into the right ventricle, gets pumped to the lungs to pick up oxygen, returns to the left atrium, then goes into the left ventricle, and last gets pumped out to the body.
Why are veins and arteries important for our health?
Because they transport blood throughout the body.
What can change your heart rate?
When you exercise your heart rate goes up, and it can go down when you relax. What you can eat or how stressed you feel can also change your heart rate.
How does oxygenated blood get from the lungs to the heart and the body?
After picking up oxygen in the lungs the oxygen-rich blood travels back to the heart to the pulmonary veins then it enters the left atrium and moves into the left ventricle.