Circulatory System

What is another name for the circulatory system?

• Respiratory system

• Cardiovascular system

• Digestive system

• Nervous system

The circulatory system consists of the heart, blood vessels, and ______.

• blood

• muscles

What is the smooth layer of cells that lines the inside of the heart and allows for smooth flow of blood?

• Endocardium

• Pericardium

Which layer of the heart is the muscular middle layer and is the thickest?

• B) Myocardium

• A) Endocardium

The double-layered membrane that covers the outside of the heart is called the ________.

• Endocardium.

• Pericardium.

Which valve is located between the right atrium and right ventricle?

• Mitral valve

• Tricuspid valve

Identify the part of the heart l- #3

• Right Atrium

• Left Ventricle

Identify the valve labeled - #11

• Tricuspid valve

• Mitral valve

Which chamber of the heart is labeled -#10

• Left Ventricle

• Left Atrium

The role of the Sinoatrial (SA) node in the heart's conductive pathway is to:

• initiate the heartbeat and regulate the heart rate

• receive signals from the brain to control heart rate