Reproduction

Females have the egg

Sperm swims at the speed of light

Only one can win

Heart Flow

                                

Blood flows through our veins

Our arteries have blood too

    They go to the heart

Kidneys Rock... when they have stones

Secrete out of blood

Reabsorption into blood

Excrete: leaves body

E. coli

Living in cellar

Can't enter from the front door

Now are forced to work

Fertilization

Ejaculation

There are two million sperm, but 

It only takes one. 

Treatment for type 1 diabetes

Taking insulin

And injected through the skin

Into fatty cells

Kidney stones

Mineral Crystals 
Kidney stones block urine flow 
It’s painful when passed 

Veins and Arteries

Veins, blood to the heart 

But, arteries blood away 

Venous flow need valves 

Negative and Positive Feed Back

Positive Increase 
Negative brings it back down 
Positive Childbirth 

Reproductive System

Females have egg cells

          While males have cells called sperm cells

Combined make babies