heart
Which structure of the heart prevents the mixing of oxygen-riched blood and oxygen-poor blood?
Septum
A flap of tissue that prevents blood from flowing backwards is called?
Valve
What does not make up the circulatory system?
A.heart
B.blood
C.lungs
D.blood vessels
C. Lungs
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The valve between the right atrium and right ventricle is known as the______ valve.
A. Aortic
B. bicuspid
C. pulmonary
D. Tricuspid
D. Tricuspid
Which chamber of the heart has the thickest wall?
Left ventricle
What part of the heart has strong walls and is bigger?
Ventricle
What organ does the blood flow to in order to pick up oxygen?
Lung
Which structure of the heart receives blood from the body that is low in oxygen and high in carbon dioxide?
Right atrium
Which side of the heart has the oxygenated blood?
Left
How many valves are found in the heart?
4
Which part of the heart pumps the oxygen-riched blood to all parts of the body?
Left Ventricle
The main artery in the heart is the...
Aorta
How many chambers does the heart have?
4
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_____ carry the blood to the heart.
Veins
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Arteries carry oxygenated blood______the heart.
Away from
Which side if the heart pumps blood into the lungs?
Right
immediately after leaving the right ventricle, blood enters which structure of the circulatory system?
The pulmonary arteries.
What is the normal resting heart rate?
60 to 100 beats per minute.
What is the functions of heart valves?
Keeps blood moving unidirectionally.
What is the name of the valve separating the right atrium from the right ventricle?
Tricuspid Valve
In order to pump blood efficiently, cardiac muscle cells on both the left and the right side of the heart must be stimulated simultaneously. Which of the following cellular junctions is credited with allowing cardiac muscle cells to pump stimultaneously?
Gap junctions.
Blood pressure in the systemic arteries is greatest during....
Ventricular systole
The loose fitting sac around the heart is lined by the....
Parietal Pericardium
Blood vessels in the cardiovascular system are subdivided into the....
Systemic and pulmonary circuits
Atrioventricular valves prevent backflow into the____
Atria