The Respiratory System, from root the word “respire” is concerned with the oxygen we intake and carbon dioxide we exhale. Therefore, it involves the lungs, trachea and nose.

Jaundice is a condition where your skin, the whites of your eyes and mucous membranes (like the inside of your nose and mouth) turn yellow. Although it affects the color of our skin, it starts in our liver due to high bilirubin levels. Therefore, it is a digestive disease.

Cardiac rhythm is an electrical impulse generated by highly specialized fibres. They are capable of producing and managing electrical impulse in the myocardium, which helps in the beating of our hearts.

Hypertension (also known as high blood pressure) is when the pressure in your blood vessels is too high (usually 140/90 mmHg). It is common among older people, but can apply to everyone, since the main cause is undisciplined and fatty diets.

Muscles are tissues that are spread throughout our bodies. They are tightly bound together, but also elastic, for movement and contraction.