the bones that protect the lungs and heart
what are ribs
the job of the respiratory system
what is to get oxygen to cells
these blood vessels carry blood back to the heart
these organs filter waste
what are kidneys
the amount of bones a baby has
what is 305
this is what the trachea is
what is windpipe
these blood vessels carry blood away from the heart
what are arteries
this is what nephrons are
what are tiny filter tubes
the amount of bones that are in the hand
what is 27
this is what the alveoli is
what are tiny air sacks in your lungs.
these blood cells fight infection
what are white blood cells
this is the what the uretha is
what is a tube that lets urine leave your body
the amount of bones in the foot
what is 26
these are two tubes that lead to your lungs
what is bronchi
this is the liquid part of blood
what is plasma
the muscular organ that stores urine
what is the bladder
this is the definition of cardiac muscles
muscles that pump blood
this is the definition of pulmonary
what is having to do with lungs
this is what tiny blood cells are called
what are platelets
this is why skin is in the excretory system
what is because it has sweat glands