Road Bike

sketchfab

The human body is made up of over 60 trillion cells, which are grouped together into tissues and organs that work together to keep us alive and functioning properly. The heart, lungs, brain, liver, kidneys, and other vital organs are all connected by a network of blood vessels that transport oxygen and nutrients throughout the body. The human immune system is also made up of many different cells and proteins that work together to protect us from diseases and infections. White blood cells, such as neutrophils and lymphocytes, help to fight off pathogens, while antibodies help to neutralize toxins and other foreign substances. The skin, which is the body's largest organ, provides a protective barrier against external invaders. The human nervous system is made up of billions of nerve cells that transmit signals throughout the body, allowing us to move, feel sensations, and think. The brain, which is the control center of the nervous system, processes information from our senses and helps us to make decisions and learn new things.