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Human Body Systems

Science

Human Body Systems Chapter Video

Human Body Systems Chapter Video

artery

a blood vessel that carries blood away from the heart
artery Simple Definition

capillary

a tiny blood vessel that allows the exchange of gases, nutrients, and waste products
capillary Simple Definition

circulatory system

the system of the heart, blood, and blood vessels, it moves oxygen, nutrients and waste
circulatory system Simple Definition

diffusion

the movement of molecules from an area of higher density to an area of lower density
diffusion Simple Definition

digestive system

the system of organs that breaks down food into nutrients for use by the body
digestive system Simple Definition

esophagus

the muscular tube connecting the mouth to the stomach
esophagus Simple Definition

kidney

the organ that filters water and waste from blood
kidney Simple Definition

large intestine

the organ that removes water from undigested food
large intestine Simple Definition

muscular system

the organ system made up of muscles that help the body move
muscular system Simple Definition

nervous system

the brain, spinal cord and nerves which relay information
nervous system Simple Definition

respiratory system

the organs that transfer oxygen from the air to the body, like the nose, trachea and lungs
respiratory system Simple Definition

skeletal system

all the bones in the body that support it, help it to move, and protect internal organs
skeletal system Simple Definition

small intestine

the long organ where most food digestion occurs, it connects to the stomach
small intestine Simple Definition

urinary bladder

the muscular sac like organ that stores urine
urinary bladder Simple Definition

vein

a blood vessel that carries blood to the heart
vein Simple Definition

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