The human body is a biological machine made of body systems; groups of organs that work together to produce and sustain life. Sometimes we get lost while studying about cells and molecules and can’t see the forest for the trees. It can be helpful to step back and look at the bigger anatomical picture. The human body consists of several complex systems that work together to maintain overall health and functionality. These systems are interdependent and complement each other to ensure the body’s proper functioning. Some organs may be part of more than one body system if they serve more than one function. Other organs and tissues serve a purpose in only one body system. Examples include the respiratory system, nervous system, and digestive system.
Digestive system This system resembles a long tube with attached organs. Ingested food is broken down into constituent nutrient molecules that are then absorbed into the bloodstream. Indigestible remains are then egested.
Skeletal system The skeleton provides a framework on which the human body is arranged. It is articulated to allow free movement in conjunction with the skeletal muscles. They control movement, posture and assist the body with heat generation. Our bodies are held together by connective tissue. Respiratory system Our bodies are made up of countless cells all requiring oxygen to carry out the important process of respiration. In this process cells use oxygen gas and produce carbon dioxide gas (a waste product that must be removed from the body. The process of breathing allows these gases to be exchanged between the blood and lungs. Reproductive system The human body has a system of organs that work together for the purpose of reproduction. The biological purpose of this process is the continuation of life. Nervous system The nervous system is made up of a network of specialized cells, tissues and organs that coordinate and regulate the responses of the body to internal and external stimuli. Immune system The immune system is a protection mechanism composed of specialized cells, cell products, tissues, organs and processes within an organism that protect against pathogens.https://jdmanursingschool.com/product/anatomy-physiology-bundle-with-flashcards-and-stickers-anatomy-study-guide-nursing-school-notes-medical-notes-instant-download-pdf/
