Rita enseña a su hija las partes del cuerpo = Rita shows her child the different body parts
Mira Gaba, vamos a explicar = Look Gaba, we now explain

Grammar:
Possessive pronouns: grammar/chapter10_possessive_pronouns/10_2_accentuated_unaccented_possessives.htm

Mis partes del cuerpo = my body parts
Tus partes del cuerpo = your body parts
y sus partes del cuerpo = and his body parts
por ejemplo = for instance
mis ojos = my eyes
tus ojos = your eyes
y = and
sus ojos = his eyes
mi nariz = my nose
tu nariz = your nose
y = and
su nariz = his nose
mi boca = my mouth
su boca = his mouth
y = and
tu boca = your mouth
su pelo = his hair
tu pelo = your hair
y = and
mi pelo = your hair
tus manos = your hands
sus manos = his hands
y = and
mis manos = my hands