the human body

Gryphon has taken a keen interest of late in the body and its various functions.  The questions that I have been asked:

Mommy, why can I only see where I am? (This one took me awhile to understand, but it became a good lesson in imagination and empathy.)

Mommy, what makes freckles come out from the inside of people?  (Skin is a fascinating organ, you know.)

Mommy, what is the little thing that's like a penis in my private place? (!!!!!)

Mommy, how come bones bend? (They don't!  You have joints!  This was a blessedly easy one to answer.)

And that is just a sampling.  Whew.  I'm exhausted.