3 The 3 main parts of The Circulatory system are The HeartPump bloodThe Blood VesselsBring blood aroundBloodCarry oxygen, nutrients and waste
4 Circulatory system Functions Carries blood and needed substances (oxygen and nutrients) to cells and waste products away to the cells and all your body.Carries cells that fight diseaseWhite blood cells.
5 Nervous systemMain Function: Control for the rest of the systems and body functionsReceives information from inside and outside the bodyDirects the way that the body will respondMain structuresbrain, spinal cord, nerve cells (neuron), sense organs
7 Reproductive system Function allows more humans to be born to continue the speciesMain structuresegg, sperm, ovaries, testes
8 Endocrine system Functions produces hormones that control the levels of other substances in the bodyStructuresductless glands, hormones
9 Immune system Main function: fights germs entering the body Main parts: lymph, white blood cells, antibodies
10 Integumentary system Main organ: SKIN Functions Protects the other body systems from injury, infectionHelps the body maintain homeostasissynthesis of vitamin D Required for bone formationExcretion of salts, water and wastessensory perceptionMain organ: SKIN
11 Respiratory system Functions Moves oxygen from the outside environment into the body.Removes carbon dioxide and water from the bodyMain Structure: LungsAlso bronchi, bronchioles, alveoli, nasal cavity, pharynx, larynx, epiglottis, trachea,
12 To bring oxygen around your body? Oxygen molecules are transport to the cells by the Circulatory systemThe blood absorb the Oxygen molecules in the lungs that are part of Respiratory systemConclusion the circulatory and the respiratory system work together.
13 Excretory system Function This system collects the waste produced by the cells and removes the waste from the body.Main organ: KidneysOthers are sweat glands, urinary bladder, urethra, ureter
14 Digestive system Function Breaks down food small enough to get into your cells.Main Structuresstomach, esophagus, mouth, salivary glands, large and small intestines, rectum, villi
15 Skeletal system Functions protects organs, produces blood, stores minerals, movement and supportMain structures:bones, joints, ligaments
16 Muscular system provide movement for the body The main function skeletal: Pull bones to cause movementsmooth: Organ muscle, and vascular wallscardiac: Heart contractionsMain structures: 3 types of muscleAnd tendons