What is the waste product of the liver?
Carbon dioxide
Oxygen
Urea
Hydrogen
Who discovered the circulatory system?
Erasistratus
Galen
Michael Servetus
William Harvey
Glucose
Sugar
Starch
Food
Vein that transports oxygenated blood from the heart.
Capillaries
Pulmonary vein
Arteries
Aorta
What is the name of the blood cell which fight diseases?
White blood cells
Red blood cells
Plasma
Platelets
Yellow watery part of the blood called :
Blood cell that contains haemoglobin which transport oxygen from the lungs to the other body cells:
Who first described arteries and vein?
The lining of the nose produces a watery liquid called :
Trachea
Mucus
Bronchi
Muscle
The diameter of the bronchiole is:
1 mm
3 mm
2 mm
4 mm
