The Cardiovascular System: Transport And Supply
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The cardiovascular system transports ?
Nutrients and oxygen to the cells
The cardiovascular transport nutrients and oxygen to the cells in your body while the _______ are removed?
Carbon dioxide and waste products of cells metabolism
What are the major components of the cardiovascular system?
The heart, blood, and a network of blood vessels
Circulation is the?
Movement of blood to and from the heart
Circulation can be divided into which two systems?
Pulmonary circulation and systemic circulation
In the pulmonary circulation blood moves from?
Heart to lungs and back
In the systemic circulation movement of blood is from?
The heart to body tissues and back
Arteries carry blood away from the heart, branches into smaller vessels called?
Arterioles, which become capillaries
Capillaries become ___?
Venules, that enlarge and become veins
Veins differ from arteries because they?
Carry blood toward the heart, half valves, and have thinner walls
The right side of the heart does what?
Collects blood from the body and sends it to the lungs
The left side of the heart collects what?
Blood from the lungs and sends it to the rest of the body
The heart is surrounded by a ?
Tough membrane, the fibrous pericardium
The outer layer of the heart wall is the ?
Epicardium also called visceral pericardium
The middle layer of the heart wall is called?
Myocardium, and is made of cardiac muscle
The inside of the heart is lined by?
Epithelium called endocardium
The heart has four chambers that are upper and lower?
The small upper chambers are the atria The large lower chamber are the ventricles
The chambers of the right side of the heart are separated from the left side of the heart so that?
There is no mixing of blood from one side to the other.
The wall between the ventricles are called the?
Interventricular septum
The atrial walls are?
Thinner than the ventricular walls
Higher pressures are generated in?
The ventricles to move blood
The walls of the left ventricle are thicker than the walls of the right ventricles because the?
Right ventricles only pumps blood to the lungs , while the left ventricle must pump blood throughout the entire body
Superior vena cava brings blood from the?
Head, neck, chest, and upper extremities
Inferior vena cava brings blood from the ?
Trunk, organs, abdomen, pelvic region, and lower extremities