You can spell either bowel (internal) or elbow (external).
Those letters can be rearranged to spell knuckle.
It is knuckle
toenail
The letters 'leukkcn' can be rearranged to spell the body part knuckle.
The missing letters, mtcahso, spell out "stomach" in reverse.
The letters spell the word thorax. It is a body part.
traches
The throat is the body part that has the letters "rathe" in it.
The letters spell the word liver. The liver is a body part.
The fallopian tubes is a body part that begins with the letter F and has 8 letters.
armpit
tummy!