A fundal posterior position of the placenta simply means that the placenta is resting at the back of the uterus. Ultrasounds should be taken to ensure that the placenta is not laying low, which can cause placenta previa.
What is fundal pressure?
fundal
Fundal hydrometra is watery fluid at the top of the uterus.
Posterior
posterior
Inversion
situated on on the outside of a posterior part
Posterior
dorsal and ventral,posterior and anterior
Superior and posterior are relative terms. You can't describe a single organ or part as being superior or posterior without mentiong what you're comparing its position to.
That is a footling breech presentation.
Posterior refers to the back, or behind something. It is used to reference a position of a body part. For example, the hamstring muscles are on the posterior thigh.