Circulatory System Crossword

What carries blood away from the heart?
What carries blood back to the heart?
Exchange gases with cells. Connects the smallest arteries to the smallest veins.
Keeps the blood flowing in one direction.
Brings nutrients, chemicals and water to the cells of the body. Made up mainly of water and is a straw color.
What makes up the largest part of the blood at about 55%?
What brings oxygen to the cells of the body?
What makes up the second largest part of the blood at about 45%?
Red blood cells shape is circular with a ______ in the middle.
What help fight germs and infections and have no specific shape?
What clots blood?
Three parts of the circulatory system are the heart, blood and _____.
The circulatory system is also called the ___________ system.
A type of disorder where red blood cells are shaped like a crescent and do not carry oxygen well.
A condition where white blood cells do not form correctly and numbers increase too quickly.
Veins contain ____.
What helps keep blood flowing in one direction?
What carries blood away from the heart?
The heart has how many chambers?
The upper part of the heart is called the ______.
The lower part of the heart is called the ____.