describe the types of blood vessels of the circulatory system and the direction in which they transport the blood.
There are two types of blood vessels: the arteries and the veins. Arteries transport the blood from the heart to the tissues and the veins transport the blood from the tissues back to the heart.
AM
Related Human Biology A Level answers
All answers ▸Why do cells first transcribe messenger RNA from DNA and then translate messenger RNA to protein? Why not directly translate DNA to protein?
Why is thermoregulation important?
Describe the role of the heart and lungs in the oxygenation of blood in humans. Why is oxygen is essential for the functioning of the human body.
People get vitamins mainly from the foods they eat or from vitamin tablets. Give a different way in which people get some vitamin K.