Organs

bowels

crotch or seat of pants (simp)

crotch or seat of pants (trad)

emotions (simp)

gland

guts (trad)

heart

heart (side)

internal (simp)

intestines (trad/jp)

kidneys (trad/jp)

liver

lungs

nest eggs

ovum

pancreas

penis

stomach

testes (simp)

testicle

the large intestine

tongue