Your anterior is the front and the posterior is the back.
The anterior refers to the front of the body or an organ, while the posterior refers to the back. These terms are used to describe the location or position of structures in relation to the body.
Not sure of the context, but: Anterior = front posterior = rear
Anterior has four surfaces while posterior has five.
The anterior will look as if it is smiling. Also it is closer to the thick band on a worm.
posterior
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.
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 fontanel is found between the frontal bone and two parietal bones
the ventral cavity is anterior to the dorsal cavity which is in the posterior.
Anterior refers to what is in front for example your abdomen is anterior whereas your back is posterior relative to eachother. Another example is that your nose is anterior to your brain. Anterior and posterior are relative terms.
....behind/back and antonym would be anterior - in front/front
Posterior