Human Anatomy

What are the main organ systems in the body?

A Answers (1)

  • AWilliam Salt, MD, Gastroenterology, answered
    There are multiple organ systems at work within you, all of which are in
    relationship with one another.

    The main organ systems of your body include:

    Circulatory system: heart, blood, blood vessels, and lymphatics

    Digestive system: esophagus, stomach, small intestine, and colon

    Endocrine system: pituitary, thyroid, ovaries, and testes

    Immune system: organs (including lymphatics and spleen), special
    cells, proteins, and tissues

    Integumentary system: skin, hair, nails, and sweat glands

    Muscular system: muscles

    Nervous system: brain, spinal cord, and nerves

    Reproductive system: uterus, penis, ovaries, and testes

    Respiratory system: nose, larynx, trachea, diaphragm, bronchi, and

    Skeletal system: bones, cartilage, and joints

    Urinary system: kidneys, ureters, urinary bladder, and urethra
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