level: Level 1
Questions and Answers List
level questions: Level 1
Question | Answer |
---|---|
The central organ to the cardiovascular system. | heart |
the key to the cardiovascular system that drops off nutrients and picks up wastes for the cells of the body is called | blood |
the purpose of the cardiovascular system is to | deliver blood throughout the body |
The only fluid tissue in the body is | blood |
number of litres of blood the human body contains | 5-6 litres |
The fluid portion of the blood is the | plasma |
the three cellular components (or formed elements) of blood are | red blood cells white blood cells platelets |
small fragments of much larger cells that lack distinguishable organelles are called | platelets |
larger than platelets but smaller than the average human cell and also do not contain organelles | red blood cells |
the true cells of the blood which do contain organelles are called | white blood cells |
the two circular cells in the middle | white blood cells |