The arrow is pointing to an artery that carries oxygenated blood from the right side of the heart.

Which valve is the arrow pointing to?

How many valves does the heart have?

The arrow is pointing to the___________ veins that delivers oxygenated blood from the lungs to the heart.

The arrow is pointing to the __________. It is the largest artery and it conveys oxygen rich blood pumped by the heart to all parts of the body.

The arrow is pointing to what valve?

The heart is a muscular organ enclosed by a thin but strong sac called__________.

The arrow is pointing to the __________ a vein which returns deoxygenated blood from the systemic circulation to the right atrium of the heart.

What separates the left and the right side of the heart?

The picture shows a yellow liquid component that make up half of the content of blood. It transports nutrients, proteins and hormones to the body.

The _______ is a component of the blood that contain hemoglobin it circulate to the body delivering oxygen to the cells.

The ________ carry oxygenated blood away from the heart.

The ________ return blood low in oxygen back to the heart from the different parts of the body.

The _________ facilitates the exchange of materials of materials such as gases and nutrients, and collect waste products of metabolism between blood and tissues.