______ is made up of plasma, red blood cells, white blood cells and cell fragments called platelets.
Blood
___________ give blood its colour. They carry oxygen and carbon dioxide.
Red blood cells
__________ carry the blood back to the heart. This blood contains carbon dioxide.
Veins
___________ are tiny blood vessels which connect the arteries and the veins.
Capillaries
_________ carry blood from the heart to the rest of the body. This blood contains oxygen.
Arteries
________ is a yellowish liquid which is 90% water. It carries the nutrients and waste products.
Plasma
____________ fight infection. They surround and absorb germs which enter the body.
White blood cells
_______ join together and help stop the bleeding when the body is losing blood because of a cut in the skin.
Platelets
A hollow muscle which pumps blood throughout the body.
Heart
The top two chambers of the heart that receive blood coming into the heart.
The right and left atria
The bottom part of the heart is made up of the ___________
right and left ventricles
Blood flows from the heart to the lungs and back to the heart again during __________ circulation
pulmonary circulation
The blood flows from the heart to the rest of the body during _________ circulation.
systemic circulation
The _____________ delivers blood to the body's tissues through a network of blood vessels.
circulatory system
