Editing Snake skeleton (section)

===Joints of the snake skull===
[[Image:Snake skull joints lateral view.jpeg|thumb|Lateral view of the skull of a [[Burmese python]], with visible kinetic joints labeled. Red = [[diarthrosis|highly mobile]], green = [[amphiarthrosis|slightly mobile]], blue = [[synarthrosis|immobile]].]]
*'''Red A''': the [[joint]] between the [[mandible]] and quadrate. It is [[Convergent_Evolution|analogous]] to the joint in mammalian jaws.
*'''Red B''': the joint between the quadrate and the [[supratemporal]]. It is highly mobile in most directions, allowing a wider gape (i.e., the snake can open its mouth wider) and greater jaw flexibility.
*'''Red C''': the joint between the prefrontal and [[maxilla]].  It allows the maxilla to pivot in the plane of the photograph, and while it does not increase gape, it does facilitate the complex action by which the snake draws prey into its mouth.
*'''Green A''': the joint between the [[frontal bone]] and [[nasal bone]]. It allows the [[nose]] to upturn slightly, increasing gape and assisting in [[swallowing]].
*'''Green B''': allows the lower jaws to bow outwards, further increasing the gape.
*'''Blue''': the joint between the supratemporal and parietal.  Immobile, except for ''[[Dasypeltis]]''.