Cardiovascular System

Fill in the blank: The ________ is also known as the cardiovascular system; consists of the heart, blood vessels, and blood; transports oxygen and nutrients to the body cells and transports carbon dioxide and metabolic materials away from the body cells.

• circulatory system

• digestive system

• respiratory system

• nervous system

Fill in the blank: The ________ is a muscular, hollow organ often called the “pump” of the body; weighs less than one pound and is about the size of a fist.

• heart

• liver

• lung

• kidney

Fill in the blank: The ________ is the serous membrane lining of the heart.

• endocardium

• pericardium

• myocardium

• epicardium

Fill in the blank: The ________ is the muscle layer of the heart.

• myocardium

• endocardium

• pericardium

• epicardium

Fill in the blank: The ________ is the membrane sac that covers the outside of the heart.

• pericardium

• endocardium

• myocardium

• pleura

Fill in the blank: The ________ is the membranous wall that divides two cavities.

• septum

• atrium

• valve

• ventricle

Fill in the blank: The ________ receives blood as it returns from the body cells.

• right atrium

• left ventricle

• pulmonary artery

• aorta

Fill in the blank: The ________ receives blood from the right atrium and pumps blood into the pulmonary artery which carries the blood to the lungs for oxygen.

• right ventricle

• left ventricle

• right atrium

• left atrium

Fill in the blank: The ________ receives oxygenated blood from the lungs.

• left atrium

• right atrium

• left ventricle

• right ventricle

Fill in the blank: The ________ receives blood from the left atrium and pumps the blood into the aorta for transport to the body cells.

• left ventricle

• right ventricle

• left atrium

• right atrium