Circulatory system

Which one of these is false about the heart?

• It contains deoxygenated blood

• It contains oxygenated blood

• It helps in filtration of blood

• It houses the roots of many veins and arteries

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 parts act like doors that control blood flow in the heart?

• Valves

• kidney

• chambers

• heart dams

What function does the heart do?

• Protects organs and produces red blood cells.
• Generates heat.
• Breaks down food into nutrients.
• The heart is a pump, which moves the blood. The arteries and veins are the pipes where the blood flows.

There are ​ (a)   types of blood vessels- capillaries, ​ (b)   and veins.​

• 3
• arteries
• 1
• 2
• 4
• jusim
• forums

Label the following on the diagram

f

g

h

Inferior vena cava

Right atrium

Pulmonary artery

Pulmonary veins

Left atrium

Capillaries of VEna Cava

Pulmonary capillaries

Superior Vena Cava

Right ventricle

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

Blood flows in the tubular structures called

• blood vessels

• ventricles

• atria

• none of these