Radiographic Positioning and Radiologic Procedures I - Finals Skull Quiz
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Questions and Answers

How many separate bones make up the skull?

  • 22 (correct)
  • 18
  • 26
  • 24

    • At what age does the development of the cranium stop?

  • 5 years old
  • 12 years old (correct)
  • 6 years old
  • 10 years old

    • What type of joints join the bones of the cranium and face?

  • Fibrous joints (correct)
  • Ball and socket joints
  • Hinge joints
  • Synovial joints

    • Where is the lambdoidal suture located?

    <p>Between the occipital bone and the parietal bones</p> Signup and view all the answers

    What is the function of the cranial bones?

    <p>Protective housing for the brain</p> Signup and view all the answers

    What is located at the junction of the coronal and sagittal sutures?

    <p>Bregma</p> Signup and view all the answers

    Where is the anterior fontanel located?

    <p>The junction of the two parietal bones and the one frontal bone at the bregma</p> Signup and view all the answers

    What is located at the junction of the parietal bone, squamosal suture, and greater wing of the sphenoid?

    <p>Pterion</p> Signup and view all the answers

    What type of joint is a suture?

    <p>Fibrous joint</p> Signup and view all the answers

    How many facial bones are there?

    <p>14</p> Signup and view all the answers

    Which bone forms the forehead and the anterior part of the vault?

    <p>Frontal bone</p> Signup and view all the answers

    What is the function of the crista galli?

    <p>Serve as the anterior attachment for the falx cerebri</p> Signup and view all the answers

    Where is the sella turcica located?

    <p>Superior to the sphenoid bone</p> Signup and view all the answers

    What is the function of superior and middle nasal conchae?

    <p>Scroll-shaped structures of the labyrinths</p> Signup and view all the answers

    What is located in the center of the supraorbital margin?

    <p>Supraorbital foramen</p> Signup and view all the answers

    What structures correspond in position to the eyebrows located below the frontal eminences?

    <p>Superciliary arches</p> Signup and view all the answers

    What type of bone is the ethmoid bone?

    <p>Irregular bone</p> Signup and view all the answers

    What is the location of glabella?

    <p>Between the eyebrows</p> Signup and view all the answers

    What feature separates orbital plates of the horizontal portion of the frontal bone?

    <p>Ethmoidal notch</p> Signup and view all the answers

    What lies inferiorly from each side of the inferior surface of the body of sphenoid bone?

    <p>Pterygoid processes</p> Signup and view all the answers

    Which suture is found between the frontal and parietal bones?

    <p>Coronal suture</p> Signup and view all the answers

    At which point is the junction of the lambdoidal and sagittal sutures located?

    <p>Lambda</p> Signup and view all the answers

    Where is the junction of the parietal bone, squamosal suture, and greater wing of the sphenoid located?

    <p>Pterion</p> Signup and view all the answers

    What type of joint joins the bones of the cranium and face?

    <p>Sutures</p> Signup and view all the answers

    Where are the anterior fontanels located?

    <p>At the junction of the two parietal bones and one frontal bone at the bregma</p> Signup and view all the answers

    What is the function of the cranial bones?

    <p>Protective housing for the brain</p> Signup and view all the answers

    How many facial bones are there in total?

    <p>14</p> Signup and view all the answers

    0

    <p>Ethmoid</p> Signup and view all the answers

    Where is the sella turcica located?

    <p>Sphenoid bone</p> Signup and view all the answers

    What is the location of the sella turcica?

    <p>Superior surface of the sphenoid bone</p> Signup and view all the answers

    What does the crista galli serve as an anterior attachment for?

    <p>Falx cerebri</p> Signup and view all the answers

    What is the function of the superior and middle nasal conchae?

    <p>Increase the surface area of the nasal cavity</p> Signup and view all the answers

    What lies inferiorly from each side of the inferior surface of the body of sphenoid bone?

    <p>Two pterygoid processes</p> Signup and view all the answers

    Where is the glabella located?

    <p>Between the superciliary ridges</p> Signup and view all the answers

    What structures correspond in position to the eyebrows located below the frontal eminences?

    <p>Superciliary arches</p> Signup and view all the answers

    What is located in the center of the supraorbital margin?

    <p>Supraorbital foramen</p> Signup and view all the answers

    Which bone forms part of the roof of the nasal cavity, and the greater part of the anterior cranial fossa?

    <p>Frontal bone</p> Signup and view all the answers

    What type of joint joins the bones of the cranium and face?

    <p>Suture</p> Signup and view all the answers

    What is located at the junction of the parietal bone, squamosal suture, and greater wing of the sphenoid?

    <p>Parietal eminence</p> Signup and view all the answers

    Study Notes

    Skull Structure and Development

    • The skull is made up of 22 separate bones.
    • Development of the cranium typically stops by the age of 2 years.

    Joints and Sutures

    • Sutures are the type of joints that connect the bones of the cranium and face.
    • The lambdoidal suture is located between the occipital bone and the parietal bones.
    • Junction of the coronal and sagittal sutures is where the fontanel is found.
    • The squamosal suture is located between the parietal and temporal bones.

    Cranial Bones Functions

    • Cranial bones serve to protect the brain, support the structures of the face, and house the inner ear.
    • The crista galli serves as an attachment point for the falx cerebri, a fold of dura mater.
    • Superior and middle nasal conchae function to warm and humidify inhaled air.

    Fontanels and Features

    • The anterior fontanel is located at the junction of the frontal and parietal bones.
    • The supraorbital margin features the supraorbital notch or foramen, where the supraorbital nerve passes.

    Bone Locations and Characteristics

    • Ethmoid bone is classified as an irregular bone.
    • The glabella is situated between the eyebrows, above the nasal bridge.
    • The junction of the parietal bone, squamosal suture, and greater wing of the sphenoid bone is also known as the temporal fossa.
    • Sella turcica is a saddle-shaped depression in the sphenoid bone, housing the pituitary gland.

    Facial Bones

    • There are a total of 14 facial bones in the human skull.
    • The frontal bone forms the forehead and the anterior part of the cranial vault.

    Additional Features

    • Below the frontal eminences are structures corresponding to the eyebrows known as the supraorbital ridges.
    • Below the body of the sphenoid bone lies the pterygoid processes, which extend inferiorly.

    Summary of Joints

    • The cranial and facial bones are primarily fixed by fibrous joints called sutures, allowing little to no movement.

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    Description

    Test your knowledge of the cranial and facial bones, including the sutures that join them, with this quiz on radiographic positioning and radiologic procedures for finals. Learn about the development of the cranium and face bones, and their distinct groups and characteristics.

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