Importance of Healthy Bones

Blood from the right side pump is dark red (bluish) and low in ______

Blood leaves the left side of the heart and travels through ______ which gradually divide into capillaries

The bright red blood then flows along pulmonary veins back to the heart's left side ______

In the capillaries, food and ______ are released to the body cells

The blood then travels in veins back to the right side of the heart, and the whole process begins ______

Within a tiny droplet of blood, there are some 5 million red blood cells, 300 000 platelets and 10 000 white ______

When you sneeze, all body functions stop, even your ______

More than half the bones in your body are found in your hands and ______

A human has 60,000 miles of ______ vessels in their body

About 8 million blood cells die in the human body every second, and the same number are born each ______

The longest muscle in the body is the ______

The smallest muscle in the body is the ______

Without our skeleton, we would just be a blob of blood and tissue on the floor. It allows us to move. Because our muscles are attached to our bones, when our muscles move, they move the bones, and we move. Healthy Bones: Most of the calcium in your body is stored in your bones. Exercise and a good diet help to keep bones strong. Vitamin D helps you absorb calcium so that your bones can stay strong. Sources of vitamin D include milk, salmon, cereal, beef, and egg. When bones break they can heal themselves, and they are stronger when they heal than they were before they were broken! The average person has 4-5 litres of blood. The blood is the transport system by which oxygen and nutrients reach the body's cells, and waste materials are carried away. In addition, blood carries substances called hormones, which control body processes, and antibodies to fight invading germs.

Red blood cells carry oxygen from the lungs to all the cells of the body while White blood cells are like soldiers protecting the body.

ARTERIES are vessels that carry blood _________ the heart.

VEINS are vessels that carry blood _________ the heart.

The Heart: Your heart is a muscle about the size of your clenched fist.

Blood carries substances called hormones, which control body processes, and antibodies to fight invading germs.