Click the left atrium, pulmonary artery, aorta and Inferior vena cava.

The circulatory system consists of what three parts?

• Heart

• Brain

• Blood

• Blood vessels

• Liver

These are tubes that carry blood back to the heart

• Arteries

• pipes

• Tubes

• veins

What is the function of the heart?

• Protects organs and produces red blood cells.

• Generates heat.

• Breaks down food into nutrients.

• To acts as a pump to move the blood.

Label the following on the diagram

f

g

h

Right atrium

Pulmonary capillaries

Superior Vena Cava

Left atrium

Capillaries of Vena Cava

Pulmonary artery

Pulmonary veins

Right ventricle

Inferior vena cava

Running is an activity that causes the cells in the muscular system to use oxygen at a faster rate. Which system responds by delivering more oxygen to these cells?

• digestive

• nervous

• circulatory

• endocrine

Study of blood is

• Ornithology

• Zoology

• Hematology

• None

______________ are the smallest blood vessels.

• Arteries

• Veins

• Capillaries

• Brochioles

These blood cells help fight infection and other diseases.

• Red Blood Cells

• White Blood Cells

• Platelets

• Plasma

Which of the following is a synonym for the circulatory system?

• respiratory system
• digestive system
• nervous system
• cardiovascular system