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The heart muscle is myogenic, which means that it can contract without any input from the nervous system. The stimulus for the muscle to contract originates from a group of specialised ca...

Firstly, the intercostal muscles contract. This causes the ribcage to move upwards and outwards. The diaphragm also contracts. This all has the combined effect of increasing the volume of the lungs. As a ...

The control of different substances in the body keeping them at a stable equilibrium level is called homeostasis. One area of this is blood sugar level control, if blood sugar level is too high or too low...

First, list all the information you need to include as a reminder in some spare space. For example, if you had to draw a plant cell writing "cell membrane, cytoplasm, nucleus, mitochondria, ribosomes...

A hole between the right and left ventricle means that blood would shunt from the left to the right ventricle as the pressure in the left ventricle is higher than in the right ventricle, leading to the mi...