What particular bones in the skeletal system of the frog are absent from the human body?

Conversely, what are the bones in the human body that are absent from the frog? Plus points the more you name and the more Latin they are.

Well reptiles have a jaw full of ear bones and mammals have an ear full of jaw bones :)
This is just speaking about the jaw – but obviously we also don’t have a urostyle, and the lower leg bones are named differently – calcanium and talus vs. tibia and fibula.

Most of the bones in the frog skull have transitioned into different bones in the human skull. We don’t have a quadratojugal, frogs do. Our lower jaw is considered a dentary, because of.. tada, dentition. Volmer teeth are present in SOME amphibians, mudpuppies are usually used as a good example, but this hardly qualifies as dentition.
Our dentary bone articulates with the squamosal bone, as opposed to most reptiles who have quadrate/articular articulation.
Mammals have malleus, incus and stapes as their middle ear bones, whereas most reptiles and amphibians only have a stapes.
The reptilian quadrate bone = our Incus.
And the reptilian articular bone = our Malleus.

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2 Responses to What particular bones in the skeletal system of the frog are absent from the human body?

  1. Roger S says:

    These are most likley the bones in the head, especially the middle ear. Amphibians and reptiles can hear, but rely mostly on the articulation of their jawbone to transmit sound directly to their inner ear. Because of this, lizards and frogs can only hear low frequency sounds. Mammals turned three articulation bones of the reptile jaw into a delicate structure able to amplify high frequency sound. Because of this, mammals can hear a much greater range of sound. These bones exist in a bony capsule just behind the jawbone.

    One feature of amphibian dentation is the presence of volmar teeth. These are actually a second row of teeth and many frogs have an extra set of sharp fangs which stick out of the roof of their mouths. The fish ancestors of amphibians used these teeth to help work prey back into their gullets and frogs swallow things much the same way the fish did. Modren amphibians lack fangs in their jaws, but african bullfrogs have a very large set of volmar teeth and can give a painful bite.
    References :

  2. nixitee says:

    Well reptiles have a jaw full of ear bones and mammals have an ear full of jaw bones :)
    This is just speaking about the jaw – but obviously we also don’t have a urostyle, and the lower leg bones are named differently – calcanium and talus vs. tibia and fibula.

    Most of the bones in the frog skull have transitioned into different bones in the human skull. We don’t have a quadratojugal, frogs do. Our lower jaw is considered a dentary, because of.. tada, dentition. Volmer teeth are present in SOME amphibians, mudpuppies are usually used as a good example, but this hardly qualifies as dentition.
    Our dentary bone articulates with the squamosal bone, as opposed to most reptiles who have quadrate/articular articulation.
    Mammals have malleus, incus and stapes as their middle ear bones, whereas most reptiles and amphibians only have a stapes.
    The reptilian quadrate bone = our Incus.
    And the reptilian articular bone = our Malleus.
    References :