Types & Basics
This type of (Open/Closed) circulatory system keeps blood inside vessels at all times.
What is the closed Circulatory System
This is the location of the heart in the human body.
What is near the center of the chest?
This node is known as the heart’s natural pacemaker.
What is the SA node?
This part of blood carries oxygen.
What are red blood cells?
Fat buildup in arteries that can block blood flow.
What is atherosclerosis?
The average human heart beats this many times per minute at rest.
What is 72 beats per minute?
This protective sac surrounds the heart.
What is the pericardium?
The job of the SA node is to do this.
What is pace the heart?
These blood cells fight disease and infection.
What are white blood cells?
This occurs when oxygen is cut off from the brain.
What is a stroke?
This is the approximate size of your heart.
What is the size of a clenched fist?
This thick muscle makes up most of the heart wall.
What is the myocardium?
These chambers receive blood entering the heart.
What are the atriums?
These help blood clot and form scabs.
What are platelets?
This happens when oxygen is cut off from the heart.
What is a heart attack?
Blood vessels that are large and carry blood away from the heart.
What are arteries?
This wall separates the left and right sides of the heart.
What is the septum?
These chambers pump blood out of the heart.
What are the ventricles?
This liquid part of blood is straw or yellowish in color.
What is plasma?
This condition affects the blood’s ability to clot.
What is hemophilia?
These tiny blood vessels allow oxygen to move into body cells.
What are capillaries?
The septum’s main job is to do this.
What is prevent mixing oxygen-rich and oxygen-poor blood?
The heart has this many total chambers.
What is four?
This type of blood disorder causes blood to clot too slowly.
What is hemophilia?
This disease increases the risk of both heart attacks and strokes.
What is atherosclerosis?