It's relative to the subject.
Anterior refers to the "beginning"
while posterior refers to an "end"
the opposite of anterior is Posterior.
Anterior means to the front (posterior means to the back). Here are some sentences.A dog's nose is anterior to its tail.The bow of a ship is anterior to the stern.The injury is along the anterior wall of the heart.
Kyphosis.
Ventral pituitary :)... Adenohypophesis is another name for anterior pituitary. Neurohypophesis is another name for posterior pituitary. :)
For a woman : Clitoris, urethral opening, vaginal orifice, anus
posterior
The movement of one anterior surface towards another anterior surface, except in the case of the knee where it is posterior to posterior (Humans Only)
The kidneys have their anterior and posterior surfaces. The foremost surface countenances towards the front stomach wall, while the back posterior surfaces confronting the posterior stomach wall. These surfaces are isolated by the edges of the kidney, which are the significant convexity horizontally, and minor concavity medially.
Anterior, posterior and lateral also.
....behind/back and antonym would be anterior - in front/front
What animals? As anterior means front and posterior means back, then most-if not all animals have a front and back, or an anterior and posterior. They are usually characterized by a mouth(anterior) or rectum/anus (posterior).
Anterior
Not sure of the context, but: Anterior = front posterior = rear
If you refer to lungs in humans, then the lungs are anterior to the spine
the opposite of anterior is Posterior.
Which structure lies posterior to the bladder and anterior to the rectum?
Anterior has four surfaces while posterior has five.