Human Body Systems

Science

Video Compilation: Human Body Systems

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

Related Chapters