- There are three areas needing refinement. The artist will see how their location, size and shape affect the horse's surface anatomy (also see photo below).
- The top illustration is the original, and was introduced here. Circles on the above left illustration show the most important areas needing clarification.
- The top red circle (left), the temporomandibular (TMJ) joint,is the hinge between the horse's jaw and skull. On the right illustration, you can now see where the Coronoid Process of the mandible (lower jaw) passes behind the zygomatic arch, thus completing the joint. Take a look at these two images to see how this joint works.
- The middle red circle is the area above and behind the horse's teeth. Here, the mandible starts to slide beneath the maxillary bone. A bump and depression below, on the face's surface (photo left) is the Facial Crest. It can clearly be seen defining the cheek.
- The lowest circle, where the upper and lower teeth meet, illustrates the meeting of the upper and lower teeth where the upper and lower teeth have been defined. Compare the hardness/boniness of the area around the mouth to the softer skin of the nose and lower face.
- In the medical illustration on the right above I've labelled other landmark features that can influence the artist's work. We'll get into their importance later; but here you can see important arteries, veins and nerves travelling through these "holes" (foramen) in the skull that can appear on the surface of a painting.
- Some common anatomy terms to help the artist recognize what their function is:
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