Axial Skeleton Labeling Flashcards
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Questions and Answers

What is the term for the joint between the frontal and parietal bones?

  • Coronal suture (correct)
  • Lambdoid suture
  • Squamous suture
  • Sagittal suture
  • Identify the suture found at the back of the skull:

  • Sagittal suture
  • Squamous suture
  • Lambdoid suture (correct)
  • Coronal suture
  • What is the term used for the suture located on the side of the skull?

  • Lambdoid suture
  • Coronal suture
  • Sagittal suture
  • Squamous suture (correct)
  • Which suture runs between the left and right parietal bones?

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

    What is the frontal bone?

    <p>The frontal bone is the bone that forms the forehead.</p> Signup and view all the answers

    Define the supraorbital foramen.

    <p>The supraorbital foramen is an opening above the eye socket.</p> Signup and view all the answers

    What is the nasal bone?

    <p>The nasal bone forms the bridge of the nose.</p> Signup and view all the answers

    What is the maxilla?

    <p>The maxilla is the upper jawbone that holds the upper teeth.</p> Signup and view all the answers

    Define the eye orbit.

    <p>The eye orbit is the bony cavity that contains the eye.</p> Signup and view all the answers

    What is the zygomatic bone?

    <p>The zygomatic bone, also known as the cheekbone, forms the prominence of the cheeks.</p> Signup and view all the answers

    What is the mandible?

    <p>The mandible is the lower jawbone.</p> Signup and view all the answers

    Define the mental foramen.

    <p>The mental foramen is a hole in the mandible that allows nerves and blood vessels to pass through.</p> Signup and view all the answers

    What is the function of the vomer?

    <p>The vomer is a bone that forms part of the nasal septum.</p> Signup and view all the answers

    What is the lacrimal bone?

    <p>The lacrimal bone is a small bone forming part of the eye socket.</p> Signup and view all the answers

    What are the parietal bones?

    <p>The parietal bones are two bones that form the sides and roof of the skull.</p> Signup and view all the answers

    What is the temporal bone?

    <p>The temporal bone is located at the sides and base of the skull.</p> Signup and view all the answers

    What does the occipital bone protect?

    <p>The occipital bone protects the back of the brain.</p> Signup and view all the answers

    Define the sphenoidal bone.

    <p>The sphenoidal bone is a butterfly-shaped bone at the base of the skull.</p> Signup and view all the answers

    What is the external acoustic meatus?

    <p>The external acoustic meatus is the ear canal.</p> Signup and view all the answers

    What is the zygomatic process of the temporal bone?

    <p>The zygomatic process is a bony projection that forms part of the cheekbone.</p> Signup and view all the answers

    What is the palatine bone?

    <p>The palatine bone forms part of the hard palate of the mouth.</p> Signup and view all the answers

    Define occipital condyles.

    <p>Occipital condyles are rounded knobs on the occipital bone.</p> Signup and view all the answers

    What is the foramen magnum?

    <p>The foramen magnum is a large opening at the base of the skull.</p> Signup and view all the answers

    What is the ethmoid bone?

    <p>The ethmoid bone is a complex bone between the eyes.</p> Signup and view all the answers

    What is the mandibular foramen?

    <p>The mandibular foramen is an opening in the mandible.</p> Signup and view all the answers

    Define the mastoid.

    <p>The mastoid is a bony prominence behind the ear.</p> Signup and view all the answers

    What is the styloid process?

    <p>The styloid process is a slender pointed piece of bone.</p> Signup and view all the answers

    What is the sella turcica?

    <p>The sella turcica is a saddle-shaped depression in the sphenoid bone.</p> Signup and view all the answers

    Define the cribriform plate.

    <p>The cribriform plate is a thin bone that forms the roof of the nasal cavity.</p> Signup and view all the answers

    What is the crista galli?

    <p>The crista galli is a vertical piece of bone in the ethmoid bone.</p> Signup and view all the answers

    What is the frontal sinus?

    <p>The frontal sinus is an air-filled space within the frontal bone.</p> Signup and view all the answers

    What is the ethmoid sinus?

    <p>The ethmoid sinus is a group of small air cells in the ethmoid bone.</p> Signup and view all the answers

    What is the sphenoid sinus?

    <p>The sphenoid sinus is a large air-filled cavity within the sphenoid bone.</p> Signup and view all the answers

    Define the maxillary sinus.

    <p>The maxillary sinus is the largest sinus located within the maxilla.</p> Signup and view all the answers

    What is the anterior fontanelle?

    <p>The anterior fontanelle is the soft spot on an infant's skull.</p> Signup and view all the answers

    What are the posterior fontanelles?

    <p>Posterior fontanelles are the soft spots at the back of an infant's skull.</p> Signup and view all the answers

    What are sphenoidal fontanelles?

    <p>Sphenoidal fontanelles are soft spots located on the sides of an infant's skull.</p> Signup and view all the answers

    What is the mastoid fontanelle?

    <p>The mastoid fontanelle is the soft spot near the mastoid process.</p> Signup and view all the answers

    What is a cervical vertebra?

    <p>A cervical vertebra is one of the seven vertebrae in the neck.</p> Signup and view all the answers

    What is a thoracic vertebra?

    <p>A thoracic vertebra is one of the twelve vertebrae in the mid-back.</p> Signup and view all the answers

    What is a lumbar vertebra?

    <p>A lumbar vertebra is one of the five vertebrae in the lower back.</p> Signup and view all the answers

    What is the sacrum?

    <p>The sacrum is a triangular bone at the base of the spine.</p> Signup and view all the answers

    What is the coccyx?

    <p>The coccyx, or tailbone, is a small bone at the base of the vertebral column.</p> Signup and view all the answers

    What is the body of a vertebra?

    <p>The body of a vertebra is the thick, cylindrical anterior part of the vertebra.</p> Signup and view all the answers

    What is the transverse process?

    <p>The transverse process is a bony projection on either side of a vertebra.</p> Signup and view all the answers

    What is the spinous process?

    <p>The spinous process is the bony projection that extends posteriorly from a vertebra.</p> Signup and view all the answers

    Define the vertebral foramen.

    <p>The vertebral foramen is the hole in the center of a vertebra.</p> Signup and view all the answers

    What is the intervertebral foramen?

    <p>The intervertebral foramen is an opening between adjacent vertebrae.</p> Signup and view all the answers

    What is an intervertebral disc?

    <p>An intervertebral disc is a pad of cartilage between adjacent vertebrae.</p> Signup and view all the answers

    Define transverse foramina.

    <p>Transverse foramina are openings in the transverse processes of cervical vertebrae.</p> Signup and view all the answers

    What is the dens (odontoid process)?

    <p>The dens is a bony projection of the axis vertebra.</p> Signup and view all the answers

    What is a bifid spinous process?

    <p>A bifid spinous process is a spinous process that is split into two parts.</p> Signup and view all the answers

    What is a costal (rib) facet?

    <p>A costal facet is a small articular surface for rib connection on a vertebra.</p> Signup and view all the answers

    What are sacral foramina?

    <p>Sacral foramina are openings in the sacrum.</p> Signup and view all the answers

    What is the Manubrium?

    <p>The Manubrium is the upper part of the sternum.</p> Signup and view all the answers

    What is the Coccyx?

    <p>The Coccyx, or tailbone, is the small bone at the base of the spine.</p> Signup and view all the answers

    What is the Sacrum?

    <p>The Sacrum is a large, triangular bone at the base of the spinal column.</p> Signup and view all the answers

    What is the body of the sternum?

    <p>The body of the sternum is the central part of the breastbone.</p> Signup and view all the answers

    What is the Xiphoid process?

    <p>The xiphoid process is the small cartilaginous extension at the lower end of the sternum.</p> Signup and view all the answers

    What are cervical vertebrae?

    <p>Cervical vertebrae are the vertebrae in the neck region.</p> Signup and view all the answers

    What are thoracic vertebrae?

    <p>Thoracic vertebrae are the vertebrae of the mid-back.</p> Signup and view all the answers

    What are lumbar vertebrae?

    <p>Lumbar vertebrae are the vertebrae in the lower back.</p> Signup and view all the answers

    Study Notes

    Axial Skeleton Labeling

    • Coronal suture: Fibrous joint separating the frontal bone from the parietal bones.

    • Lambdoid suture: Joint connecting the occipital bone with the parietal bones.

    • Squamous suture: Joint between the temporal bones and parietal bones on the side of the skull.

    • Sagittal suture: Joint dividing the left and right parietal bones along the midline.

    • Frontal bone: The bone forming the forehead and the upper part of the eye sockets.

    • Supraorbital foramen: A small opening above the eye socket that allows nerves and blood vessels to pass.

    • Nasal bone: The two small bones forming the bridge of the nose.

    • Maxillary (maxilla) bone: The upper jawbone, holding the upper teeth and forming part of the eye sockets.

    • Eye orbit: The bony cavity containing the eyeball and associated structures.

    • Zygomatic bone: The cheekbone that also contributes to the eye socket structure.

    • Mandible: The lower jawbone, the only movable bone of the skull.

    • Mental foramen: Small openings in the mandible for the passage of nerves and blood vessels to the chin.

    • Vomer: A bone forming the inferior part of the nasal septum.

    • Lacrimal bone: Small bones forming part of the eye socket, involved in tear drainage.

    • Parietal bones: Two bones forming the sides and roof of the skull.

    • Temporal bone: The sides of the skull, containing the structures of the ears.

    • Occipital bone: The posterior bone of the skull, containing the foramen magnum.

    • Sphenoidal bone: Bone located in the middle of the skull base, resembling a butterfly.

    • External acoustic meatus: Ear canal leading to the eardrum.

    • Zygomatic process of temporal bone: A projection that forms part of the zygomatic arch.

    • Palatine bone: Bone forming the back part of the roof of the mouth.

    • Occipital condyles: Rounded projections on the occipital bone that articulate with the first cervical vertebra.

    • Foramen magnum: Large opening in the occipital bone for the spinal cord.

    • Ethmoid bone: A light, spongy bone located between the eyes, forming part of the nasal cavity.

    • Mandibular foramen: Opening in the mandible for nerves and blood vessels.

    • Mastoid process: Protrusion behind the ear, serving as an attachment for muscles.

    • Styloid process: Long, pointed bony projection from the base of the skull.

    • Sella turcica: Saddle-shaped depression in the sphenoid bone, housing the pituitary gland.

    • Cribriform plate: A part of the ethmoid bone containing perforations for olfactory nerves.

    • Crista galli: A vertical projection of the ethmoid bone, serving as an attachment for the dura mater.

    • Frontal sinus: Air-filled cavities within the frontal bone, aiding in voice resonance and reducing skull weight.

    • Ethmoid sinus: Sinuses located within the ethmoid bone, also involved in voice resonance.

    • Sphenoid sinus: Located within the sphenoid bone, varies in size and shape.

    • Maxillary sinus: Largest paranasal sinuses located within the maxilla.

    • Anterior fontanelle: Soft spot on an infant's skull between the frontal and parietal bones.

    • Posterior fontanelles: Soft spots located at the junction of the parietal and occipital bones in infants.

    • Sphenoidal fontanelles: Soft spots at the junction of the frontal, parietal, temporal, and sphenoid bones.

    • Mastoid fontanelle: Soft spot located between the parietal and temporal bones.

    • Cervical vertebrae: The seven vertebrae in the neck region, designated as C1-C7.

    • Thoracic vertebrae: The twelve vertebrae in the upper back, designated as T1-T12.

    • Lumbar vertebrae: The five vertebrae in the lower back, designated as L1-L5.

    • Sacrum: A triangular bone at the base of the spine formed by the fusion of five sacral vertebrae.

    • Coccyx: The small, triangular bone at the end of the vertebral column, commonly known as the tailbone.

    • Body of vertebra: The weight-bearing part of a vertebra.

    • Transverse process: Bony projections on either side of a vertebra for muscle attachment.

    • Spinous process: The bony projection on the posterior side of a vertebra.

    • Vertebral foramen: The central opening of a vertebra through which the spinal cord passes.

    • Intervertebral foramen: Openings between adjacent vertebrae for spinal nerves to exit the vertebral column.

    • Intervertebral disc: Cartilaginous structures between vertebrae that absorb shock and allow movement.

    • Transverse foramina: Holes in cervical vertebrae for the passage of vertebral arteries.

    • Dens (odontoid process): A tooth-like projection from the second cervical vertebra (axis) that allows head rotation.

    • Bifid spinous process: A characteristic of some cervical vertebrae where the spinous process is split.

    • Costal (rib) facet: Articulation points on thoracic vertebrae for rib attachment.

    • Sacral foramina: Openings in the sacrum for the passage of nerves and blood vessels.

    • Manubrium: The upper segment of the sternum connecting to the ribs.

    • Coccyx: Also known as the tailbone, it is composed of small fused vertebrae.

    • Sacrum: The shield-shaped bone at the base of the spine comprised of fused sacral vertebrae.

    • Body of sternum: The central and largest part of the sternum connecting to ribs.

    • Xiphoid process: The small pointed cartilaginous extension at the lower part of the sternum.

    • Cervical vertebrae: Comprises the uppermost segment of the vertebral column.

    • Thoracic vertebrae: Located in the mid-back and articulate with the ribs.

    • Lumbar vertebrae: The robust bones that support the lower back.

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    Test your knowledge of the axial skeleton with these labeling flashcards. Identify key structures like sutures and bones, including the coronal suture, frontal bone, and more. Perfect for students looking to enhance their understanding of human anatomy.

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