Circulation Flashcards
What are the 3 components of the circulatory system?
Heart, blood vessels and blood
What are the 3 main functions of the circulatory system?
1 transports gases, nutrient molecules, and waste
2 regulates internal body temperature
3 protects against blood loss from injury, disease causing microbes and toxic substances
What is the heart?
An organ that pushes the blood through the body with it’s pumping action and creates blood flow
What serves as the roadways through which the blood moves?
Blood vessels
What 2 components make up the cardiovascular system?
The heart and blood vessels
What are the functions of blood?
The blood carries nutrients, oxygen, carbon dioxide, water, wastes, and many other materials through the body
What are the functions of the heart?
Pumping blood through the body, keeping oxygen rich blood deprecated from oxygen poor blood, and ensuring that blood only flows in one direction
How many chambers does the heart have?
4
What are the 2 top chambers of the heart?
The atria (singular atrium)
What are the 2 bottom chambers of the heart?
The ventricles
What separates the ventricles and atria?
A muscular wall called the septum
The _______ collects blood and the _______ pump it back out
Atria
Ventricles
The right atrium collects blood from the ________
Body tissue (oxygen poor blood)
The left atrium collects blood from the ________
Lungs (oxygen rich blood)
The right septum pumps out oxygen _____ blood to the _____
Poor
Lungs
