Zygomatic Bone

by Darren Salmi, MD, MS

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    00:01 Now we have the zygomatic bone.

    00:04 Which is very complicated as well and it has a lateral facial surface.

    00:10 That's going to participate in the formation of what we call the cheekbones.

    00:15 And we can see it has parameters such as the zygomaticofacial parameter.

    00:20 Through which structures like nerves are going to pass.

    00:23 It's also going to be the attachment point for certain muscles of facial expressions.

    00:27 Such as zygomaticus major.

    00:29 And zygomaticus minor.

    00:33 Here we see the posteromedial or temporal surface of the bone.

    00:40 And if we zoom in, we can see zygomaticotemporal foramina.

    00:45 Again, these are openings passageways for nerves to pass through.

    00:50 Here we see its orbital surface so it participates in part of the bony orbit.

    00:55 Here you can see the anterosuperior orbital border which is also forming the orbital border.

    01:01 The anteroinferior border also forming the maxillary border.

    01:05 The posterior superior border which is also the temporal border.

    01:10 As well as his posterior inferior and posterior medial borders.

    01:17 Now let's look at the processes coming off of the zygomatic bone.

    01:21 First we have the frontal process interacting with the frontal bone.

    01:26 And it's going to interact with the zygomatic process of the frontal bone.

    01:30 So they're correspondingly named.

    01:33 We also have the temporal process.

    01:36 Which is going to interact with the zygomatic process of the temporal bone together forming the zygomatic arch.

    About the Lecture

    The lecture Zygomatic Bone by Darren Salmi, MD, MS is from the course Skull.

    Included Quiz Questions

    1. Frontal process
    2. Temporal process
    3. Mandibular process
    4. Ethmoidal process

    Author of lecture Zygomatic Bone

     Darren Salmi, MD, MS

    Darren Salmi, MD, MS

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