The human body is the most complex machine that exists. The human body is made up of a couple of systems that all work together to keep us alive. These systems are :
Musculoskeletal system: provides support, strength, posture, and motion. In this category, we have bones and muscles.
Cardiovascular system: transports oxygen, nutrients, and hormones through the body. It is made up of the heart and blood vessels. This system is also responsible for transporting the metabolic waste, such as carbon dioxide, water, and other byproducts of chemical reactions that happen in the body.
Respiratory system: exchanges oxygen and carbon dioxide with the air in the atmosphere. This system also regulates our body’s pH balance. In this category, we have the lungs and the airways, such as the esophagus.
Nervous system: This is the most important system. It is made up of the brain, spinal cord, and all the neural pathways in the body. This system processes information from the outside world and the inside of the body. It then decides the best course of action. Some of the decisions taken are in our control, such as thoughts and feelings and course of action in everyday situations. Some of the decisions taken by the neural system are out of our control, such as regulating metabolic activity and maintaining homeostasis. Homeostasis is the maintenance of biological equilibrium.
Digestive system: This is made up of all the organs and body parts that assist with digestion, from the mouth to the rectum. The job of this system is the mechanical and chemical breakdown of the food. The malfunctioning of this system brings issues all over the body.
Urinary system: This system processes liquid waste. This system also filtrates blood, water, and organic compounds. If this system malfunctions, the body loses the ability to reuse its resources, and the individual loses sugar and blood.
The endocrine system; is responsible for the production of hormones. This system regulates various functions, such as digestion, metabolic activity, etc. Hormones are also part of our emergency responses, such as the release of adrenaline.
Lymphatic system; This system regulates the immune defense of the body. It helps us to fight off infections and diseases. This system also manages the drainage of excessive fluid buildups in the cells.
Reproduction system: This system manages our reproduction. It works in conjunction with the endocrine system.
Integumentary system: This is made up of the skin. The job of this system is to protect the inside of the body from the outside world. This system is also responsible for our senses.
All the above systems work together to maintain body homeostasis. Homeostasis is the process of keeping a balance in bodily functions. This is done via the use of feedback cycles. Feedback cycles are either positive or negative. The idea is that the body regulates everything by keeping specific metrics. Feedback cycles help to determine what is too much and what is too little. The main metric is concentration. The body takes the necessary steps to compensate for any difference from the standard levels of each body’s functions.