11 Organ Systems of the Human Body

Urinary System

function: filters the blood and removes waste from it, concentrates waste into urine and expels urine from body eg: Kidneys, bladder

Digestive System

function: mechanically and chemically breakdowns food materials, absorbs nutrients and expels waste eg: stomach, liver, intestines

Reproductive System

function: produces sex cells, hormones and when in conjunction allows for fertilization eg: male: testes, seminal vesicles female: ovaries, uterus

Muscle System

function: provides body movement and generates heat when muscles contract eg: muscles, tendons

Integumentary System

function: provides protection regulates body temp, prevents water loss eg: skin, hair

Skeletal System

function: provides support and strucutre, stores calcium, minerals, fats, marrow eg: Bones, Cartilage

Circulatory System

function: pumps blood to distribute hormones, nutrients and gases and removes wastes eg: heart, veins, arteries

Nervous System

function: regulatory system that controls body movement, consciousness, intelligence, memory eg: brain, spinal cord, nerves

Respiratory System

function: responsible for the exchange of gases within the body between blood and lungs eg: lungs, trachea

Endocrine System

function: secretes hormones which regulate body and cellular growth, chemical levels in the body, and reproductive functions eg: pituitary gland, thyroid gland

Lymphatic System

function: transports and filters lymph and initiates immune response eg: nodes, lymph vessels, spleen