The reproductive system consists of all the organs involved in reproduction.
The skeleton is part of the musculoskeletal system. It consists of all the bones and cartilage, supported and held together by ligaments.
Muscles are part of the locomotor system. They are organs that contract to enable the body to move. Most are connected to the skeleton by tendons.
The <b>nervous system</b> is part of the <b>musculoskeletal system</b>.<br>It consists mainly of the brain, spinal cord, and nerves. Among other things, it manages sensory information, cognitive functions (memory, intellect), emotions, and coordinates movement.
<b>The circulatory system</b> is a closed circuit that transports blood from the heart to the various organs and back to the heart.
<b>The lymphatic system</b> has a dual function of defending the body and eliminating waste products. It consists of vessels, lymph nodes, and other organs such as the spleen and thymus.
<b>The respiratory system</b> is the set of organs that transport oxygen (O<sub>2</sub>) from the air to the blood and eliminate carbon dioxide (CO<sub>2</sub>) produced during cellular respiration.
<b>The excretory system</b> consists of all the organs that eliminate waste produced by the body, mainly through urine.
<b>The endocrine system</b> is a system of organs and glands that produce and release hormones into the blood to regulate various body functions, such as growth, metabolism, and reproduction.
<b>The digestive system</b> is the set of organs that convert food into nutrients. It mainly includes the digestive tract (stomach, intestines, etc.) and the digestive glands (liver, pancreas, etc.).
