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There are nine major systems working in conjunction with one another to keep the body operating at peak performance:
1) Skeletal 2) Musculoskeletal 3) Blood 4) Cardiovascular 5) Central nervous 6) Endocrine 7) Digestive 8) Respiratory 9) Integumentary
The skeletal system functions as a structural foundation that performs as a catalyst of movement. It supports, protects and anchors muscles and organs within the skeletal frame. The skeletal system is composed of bones, ligaments, tendons, muscles and cartilage. The skeleton and muscle systems function together as the musculoskeletal system
The skeletal and muscular system are fuelled by the circulatory system which consists of plasma/blood. The plasma/blood transport oxygen and carbon dioxide, food molecules, ions, waste, hormones and heat throughout the body and fight against infection and other foreign material that invade the body.
The cardiovascular system is composed of the heart, blood vessels, and cells and plasma that make up the blood. The cardiovascular system works in harmony with the circulatory system to fuel the body with the essentials that sustain life.
The endocrine system is made up of group of ductless glands that secretes hormones necessary for normal growth and development, reproduction and homeostasis. The endocrine system regulates mood, growth and development, tissue function, and metabolism, as well as sexual function and reproductive processes.
The central nervous system consists of the brain and spinal cord, which serve as the main processing centre for the entire nervous system, receiving and interpreting sensory information via electrical signals.
The digestive system (also known as the alimentary canal) is the system of organs that takes in food, digests it to extract energy and nutrients, and expels the remaining waste.
The respiratory system is made up of the lungs, airways, diaphragm, windpipe, throat, mouth, nasal passages, pharynx and larynx. This respiration process moves oxygenated air throughout the system into the blood stream.
The integumentary system and its components--skin, hair, nails, skin glands and their products (sweat and slime)--is the body's largest organ system. This system consist of two layers: the epidermis and the subdermis.
These nine systems provide the body with sustenance, heat, air and protection it needs. Each system depends on the other systems' input to provide good health and peak performance.
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