Circulatory System
What is the movement of blood through the body called?
circulation
What is the upper chamber of the heart called
atrium
What type of blood vessel carries blood away from the heart?
artery
What is the liquid part of blood called?
plasma
What is the buildup of fat deposits on artery walls called?
atherosclerosis
What organ system transports blood through vessels?
closed circulatory system
What is the thick tissue wall that separates the left and right sides of the heart?
septum
What connects arteries to veins?
capillaries
What is the role of platelets in the body?
blood clotting
What type of artery carries blood to the heart muscle
coronary artery
Name one job of the circulatory system related to waste management
transporting waste products like carbon dioxide
What are the thin flaps of tissue in the heart that act like one-way doors?
valves
What is the largest artery in the body?
aorta
How long do red blood cells typically function before needing replacement?
120-130 days
What can a blockage in a coronary artery lead to
a heart attack
What is the role of hemoglobin in red blood cells?
carrying oxygen
What is the size of the heart compared to?
the size of your fist
Why do arteries have thick muscular walls?
to prevent them from bursting due to high pressure
What determines a person's blood type?
specific chemical signals on red blood cells
How can lifestyle affect heart disease
certain kinds of heart disease can be linked to lifestyle and environment
How does the circulatory system help regulate body temperature?
by distributing heat evenly around the body
What sound does the heartbeat make when valves close
lub-dub
What happens to blood in capillaries?
the exchange of nutrients and waste with body cells
What happens when blood is put in a centrifuge?
it separates into liquid and solid parts
Why is it important to know your blood type?
it determines what kind of blood you can receive in a transfusion