circulatory systems

Why are the walls of the left ventricle thicker than that of the right ventricle?

• The left ventricle must force blood into all the capillaries of the lungs 
• the left ventricle doesn't skip leg day
• This is false, the walls of the right ventricle are thicker
• Blood from the left ventricle is pumped throught the entire body 

The chamber that receives oxygenated blood from the lungs

• Right Ventricle

• Left Ventricle

• Right Atrium

• Left Atrium

A flap of tissue that prevents blood from flowing backward

• Aorta
• Atrium
• Septum
• Valve

The chamber that pumps deoxygenated blood to the lungs

• Right Ventricle

• Right Atrium

• Left Ventricle

• Left Atrium

How many times does the ventricle pump blood to gills in the fish during one circulation?

• 1

• 2

• 3

• 4

Where does the mixing of oxygenated and deoxygenated blood occur?

• atrium

• ventricle

• lung

• systemic capillaries

What part of this system pumps the oxygen-poor blood through the pulmonary valve to the lungs?

• Right ventricle

• Left ventricle

• Right atrium

• Left atrium

What part of this circulatory system receives oxygen-rich blood from the lungs and pumps it to the left ventricle?

• left atrium

• right atrium

• left ventricle

• right ventricle

What part of the circulatory system pumps the oxygen-rich blood through the aortic valve out to the rest of the body?

• right atrium

• left ventricle

• right ventricle

• left atrium

Which of these is NOT a characteristic of an open circulatory system?

• Blood is enclosed within blood vessels
• There is no distinction between blood and extracellular fluid
• Contains hemolymph
• There is no distinction between blood and extracellular fluid