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.
Posterior to Iris
Anterior
100 percent anterior
anterior tibial, femoral, posterior tibialfemoral, posterior tibial, anterior tibial
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).
the ventral cavity is anterior to the dorsal cavity which is in the posterior.
The term "anterior" is the same as "frontal." It refers to the front part or surface of something.
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
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