Frontal bone anatomy quiz

1. Which part of the frontal bone forms the superior wall of the orbit?

• Nasal part

  The orbital part (pars orbitalis) of the frontal bone is a horizontal plate that forms the superior wall of the orbit (orbital roof).

• Squamous part of the frontal bone

  The orbital part (pars orbitalis) of the frontal bone is a horizontal plate that forms the superior wall of the orbit (orbital roof).

• Orbital part

  The orbital part (pars orbitalis) of the frontal bone is a horizontal plate that forms the superior wall of the orbit (orbital roof).

• Zygomatic process

  The orbital part (pars orbitalis) of the frontal bone is a horizontal plate that forms the superior wall of the orbit (orbital roof).

• I find it difficult to answer

  The orbital part (pars orbitalis) of the frontal bone is a horizontal plate that forms the superior wall of the orbit (orbital roof).

2. What is the depression on the orbital part of the frontal bone that accommodates the lacrimal gland called?

• Trochlear fovea

  The lacrimal gland fossa (fossa glandulae lacrimalis) is located in the lateral part of the orbital surface of the frontal bone and accommodates the lacrimal gland.

• Fossa for lacrimal gland

  The lacrimal gland fossa (fossa glandulae lacrimalis) is located in the lateral part of the orbital surface of the frontal bone and accommodates the lacrimal gland.

• Ethmoidal notch

  The lacrimal gland fossa (fossa glandulae lacrimalis) is located in the lateral part of the orbital surface of the frontal bone and accommodates the lacrimal gland.

• Supraorbital notch

  The lacrimal gland fossa (fossa glandulae lacrimalis) is located in the lateral part of the orbital surface of the frontal bone and accommodates the lacrimal gland.

• I find it difficult to answer

  The lacrimal gland fossa (fossa glandulae lacrimalis) is located in the lateral part of the orbital surface of the frontal bone and accommodates the lacrimal gland.

3. Where is the trochlear fovea (fovea trochlearis) located on the frontal bone?

• On the lateral part of the orbital surface

  The trochlear fovea (fovea trochlearis) is located on the medial part of the orbital surface of the frontal bone.

• On the nasal part of the frontal bone

  The trochlear fovea (fovea trochlearis) is located on the medial part of the orbital surface of the frontal bone.

• On the medial part of the orbital surface

  The trochlear fovea (fovea trochlearis) is located on the medial part of the orbital surface of the frontal bone.

• On the internal surface of the squamous part

  The trochlear fovea (fovea trochlearis) is located on the medial part of the orbital surface of the frontal bone.

• I find it difficult to answer

  The trochlear fovea (fovea trochlearis) is located on the medial part of the orbital surface of the frontal bone.

4. Which suture connects the frontal bone with the parietal bones?

• Squamous suture

  The coronal suture (sutura coronalis) connects the frontal bone with both parietal bones. The sagittal suture connects the parietal bones to each other, the lambdoid suture connects the parietal bones with the occipital bone, and the squamous suture connects the parietal bones with the temporal bones.

• Coronal suture

  The coronal suture (sutura coronalis) connects the frontal bone with both parietal bones. The sagittal suture connects the parietal bones to each other, the lambdoid suture connects the parietal bones with the occipital bone, and the squamous suture connects the parietal bones with the temporal bones.

• Sagittal suture

  The coronal suture (sutura coronalis) connects the frontal bone with both parietal bones. The sagittal suture connects the parietal bones to each other, the lambdoid suture connects the parietal bones with the occipital bone, and the squamous suture connects the parietal bones with the temporal bones.

• Lambdoid suture

  The coronal suture (sutura coronalis) connects the frontal bone with both parietal bones. The sagittal suture connects the parietal bones to each other, the lambdoid suture connects the parietal bones with the occipital bone, and the squamous suture connects the parietal bones with the temporal bones.

• I find it difficult to answer

  The coronal suture (sutura coronalis) connects the frontal bone with both parietal bones. The sagittal suture connects the parietal bones to each other, the lambdoid suture connects the parietal bones with the occipital bone, and the squamous suture connects the parietal bones with the temporal bones.

5. What is the foramen or notch on the supraorbital margin of the frontal bone through which the supraorbital neurovascular bundle passes called?

• Supratrochlear foramen

  The supraorbital foramen or notch (foramen/incisura supraorbitalis) is located on the supraorbital margin of the frontal bone and transmits the supraorbital nerve (a branch of the frontal nerve from V1) and the supraorbital vessels.

• Supraorbital foramen (notch)

  The supraorbital foramen or notch (foramen/incisura supraorbitalis) is located on the supraorbital margin of the frontal bone and transmits the supraorbital nerve (a branch of the frontal nerve from V1) and the supraorbital vessels.

• Ethmoidal foramen

  The supraorbital foramen or notch (foramen/incisura supraorbitalis) is located on the supraorbital margin of the frontal bone and transmits the supraorbital nerve (a branch of the frontal nerve from V1) and the supraorbital vessels.

• Frontal foramen (notch)

  The supraorbital foramen or notch (foramen/incisura supraorbitalis) is located on the supraorbital margin of the frontal bone and transmits the supraorbital nerve (a branch of the frontal nerve from V1) and the supraorbital vessels.

• I find it difficult to answer

  The supraorbital foramen or notch (foramen/incisura supraorbitalis) is located on the supraorbital margin of the frontal bone and transmits the supraorbital nerve (a branch of the frontal nerve from V1) and the supraorbital vessels.

6. What is the ethmoidal notch (incisura ethmoidalis) of the frontal bone?

• A groove on the external surface of the squamous part for the passage of the meningeal arteries

  The ethmoidal notch (incisura ethmoidalis) is the space between the two orbital parts of the frontal bone.

• The space between the two orbital parts

  The ethmoidal notch (incisura ethmoidalis) is the space between the two orbital parts of the frontal bone.

• A notch on the supraorbital margin for the passage of a nerve

  The ethmoidal notch (incisura ethmoidalis) is the space between the two orbital parts of the frontal bone.

• A foramen in the nasal part of the frontal bone

  The ethmoidal notch (incisura ethmoidalis) is the space between the two orbital parts of the frontal bone.

• I find it difficult to answer

  The ethmoidal notch (incisura ethmoidalis) is the space between the two orbital parts of the frontal bone.

7. Which bone is situated in the ethmoidal notch?

• Sphenoid bone = Sphenoid = Sphenoidal bone

  The ethmoid bone (os ethmoidale) articulates with the frontal bone through the ethmoidal notch (incisura ethmoidalis).

• Nasal bones

  The ethmoid bone (os ethmoidale) articulates with the frontal bone through the ethmoidal notch (incisura ethmoidalis).

• Ethmoid bone = Ethmoid = Ethmoidal bone

  The ethmoid bone (os ethmoidale) articulates with the frontal bone through the ethmoidal notch (incisura ethmoidalis).

• Lacrimal bone

  The ethmoid bone (os ethmoidale) articulates with the frontal bone through the ethmoidal notch (incisura ethmoidalis).

• I find it difficult to answer

  The ethmoid bone (os ethmoidale) articulates with the frontal bone through the ethmoidal notch (incisura ethmoidalis).

8. What is the crest on the internal surface of the squamous part of the frontal bone to which the falx cerebri attaches called?

• Frontal crest

  The frontal crest (crista frontalis) is a median crest on the internal (cerebral) surface of the squamous part of the frontal bone. The falx cerebri is attached to it.

• Crista galli

  The frontal crest (crista frontalis) is a median crest on the internal (cerebral) surface of the squamous part of the frontal bone. The falx cerebri is attached to it.

• Internal occipital crest

  The frontal crest (crista frontalis) is a median crest on the internal (cerebral) surface of the squamous part of the frontal bone. The falx cerebri is attached to it.

• Ethmoidal crest

  The frontal crest (crista frontalis) is a median crest on the internal (cerebral) surface of the squamous part of the frontal bone. The falx cerebri is attached to it.

• I find it difficult to answer

  The frontal crest (crista frontalis) is a median crest on the internal (cerebral) surface of the squamous part of the frontal bone. The falx cerebri is attached to it.

9. Where does the groove for the superior sagittal sinus begin on the internal surface of the frontal bone?

• At the frontal crest and foramen caecum

  The groove for the superior sagittal sinus (sulcus sinus sagittalis superioris) begins at the foramen caecum (foramen caecum) near the frontal crest on the internal surface of the squamous part of the frontal bone, then continues onto the parietal bones and the occipital bone.

• At the level of the coronal suture

  The groove for the superior sagittal sinus (sulcus sinus sagittalis superioris) begins at the foramen caecum (foramen caecum) near the frontal crest on the internal surface of the squamous part of the frontal bone, then continues onto the parietal bones and the occipital bone.

• In the region of the supraorbital notch

  The groove for the superior sagittal sinus (sulcus sinus sagittalis superioris) begins at the foramen caecum (foramen caecum) near the frontal crest on the internal surface of the squamous part of the frontal bone, then continues onto the parietal bones and the occipital bone.

• At the level of the orbital parts

  The groove for the superior sagittal sinus (sulcus sinus sagittalis superioris) begins at the foramen caecum (foramen caecum) near the frontal crest on the internal surface of the squamous part of the frontal bone, then continues onto the parietal bones and the occipital bone.

• I find it difficult to answer

  The groove for the superior sagittal sinus (sulcus sinus sagittalis superioris) begins at the foramen caecum (foramen caecum) near the frontal crest on the internal surface of the squamous part of the frontal bone, then continues onto the parietal bones and the occipital bone.

10. What is the foramen at the base of the frontal crest called?

• Supraorbital foramen

  The foramen caecum (foramen caecum) is located at the base of the frontal crest.

• Blind foramen

  The foramen caecum (foramen caecum) is located at the base of the frontal crest.

• Ethmoidal foramen

  The foramen caecum (foramen caecum) is located at the base of the frontal crest.

• Styloid foramen

  The foramen caecum (foramen caecum) is located at the base of the frontal crest.

• I find it difficult to answer

  The foramen caecum (foramen caecum) is located at the base of the frontal crest.

11. How many anatomical notches (or foramina) are located in the medial part of each supraorbital margin of the frontal bone?

• 1

  On each supraorbital margin (margo supraorbitalis) of the frontal bone, closer to the nasal part, there are two notches (which may sometimes be converted into complete foramina by bony bridges): the supraorbital notch / foramen (incisura / foramen supraorbitale) and the frontal notch / foramen (incisura / foramen frontale).

• 2

  On each supraorbital margin (margo supraorbitalis) of the frontal bone, closer to the nasal part, there are two notches (which may sometimes be converted into complete foramina by bony bridges): the supraorbital notch / foramen (incisura / foramen supraorbitale) and the frontal notch / foramen (incisura / foramen frontale).

• 3

  On each supraorbital margin (margo supraorbitalis) of the frontal bone, closer to the nasal part, there are two notches (which may sometimes be converted into complete foramina by bony bridges): the supraorbital notch / foramen (incisura / foramen supraorbitale) and the frontal notch / foramen (incisura / foramen frontale).

• 4

  On each supraorbital margin (margo supraorbitalis) of the frontal bone, closer to the nasal part, there are two notches (which may sometimes be converted into complete foramina by bony bridges): the supraorbital notch / foramen (incisura / foramen supraorbitale) and the frontal notch / foramen (incisura / foramen frontale).

• I find it difficult to answer

  On each supraorbital margin (margo supraorbitalis) of the frontal bone, closer to the nasal part, there are two notches (which may sometimes be converted into complete foramina by bony bridges): the supraorbital notch / foramen (incisura / foramen supraorbitale) and the frontal notch / foramen (incisura / foramen frontale).

12. Which bones articulate with the frontal bone in the region of the glabella (glabella)?

• Nasal bones and maxillae

  In the inferior part of the squamous part of the frontal bone—in the region of the glabella—the frontal bone articulates with the nasal bones (through the frontonasal suture) and with the frontal processes of the maxillae. These articulations form the region of the root of the nose.

• Parietal bones and sphenoid bone

  In the inferior part of the squamous part of the frontal bone—in the region of the glabella—the frontal bone articulates with the nasal bones (through the frontonasal suture) and with the frontal processes of the maxillae. These articulations form the region of the root of the nose.

• Lacrimal bones and palatine bones

  In the inferior part of the squamous part of the frontal bone—in the region of the glabella—the frontal bone articulates with the nasal bones (through the frontonasal suture) and with the frontal processes of the maxillae. These articulations form the region of the root of the nose.

• Zygomatic bones and lacrimal bones

  In the inferior part of the squamous part of the frontal bone—in the region of the glabella—the frontal bone articulates with the nasal bones (through the frontonasal suture) and with the frontal processes of the maxillae. These articulations form the region of the root of the nose.

• I find it difficult to answer

  In the inferior part of the squamous part of the frontal bone—in the region of the glabella—the frontal bone articulates with the nasal bones (through the frontonasal suture) and with the frontal processes of the maxillae. These articulations form the region of the root of the nose.

13. What is the paired elevation on the external surface of the squamous part of the frontal bone corresponding to the center of ossification called?

• Supraorbital margin

  The frontal eminence (tuber frontale) is a paired rounded elevation on the external surface of the squamous part of the frontal bone corresponding to the center of primary ossification. It is more prominent in children than in adults. The superciliary arches are located inferiorly, above the superior margins of the orbits.

• Frontal eminence

  The frontal eminence (tuber frontale) is a paired rounded elevation on the external surface of the squamous part of the frontal bone corresponding to the center of primary ossification. It is more prominent in children than in adults. The superciliary arches are located inferiorly, above the superior margins of the orbits.

• Superciliary arch

  The frontal eminence (tuber frontale) is a paired rounded elevation on the external surface of the squamous part of the frontal bone corresponding to the center of primary ossification. It is more prominent in children than in adults. The superciliary arches are located inferiorly, above the superior margins of the orbits.

• Zygomatic process

  The frontal eminence (tuber frontale) is a paired rounded elevation on the external surface of the squamous part of the frontal bone corresponding to the center of primary ossification. It is more prominent in children than in adults. The superciliary arches are located inferiorly, above the superior margins of the orbits.

• I find it difficult to answer

  The frontal eminence (tuber frontale) is a paired rounded elevation on the external surface of the squamous part of the frontal bone corresponding to the center of primary ossification. It is more prominent in children than in adults. The superciliary arches are located inferiorly, above the superior margins of the orbits.

14. Which process of the frontal bone articulates with the zygomatic bone?

• Nasal process

  The zygomatic process (processus zygomaticus) of the frontal bone articulates with the zygomatic bone.

• Zygomatic process

  The zygomatic process (processus zygomaticus) of the frontal bone articulates with the zygomatic bone.

• Orbital process

  The zygomatic process (processus zygomaticus) of the frontal bone articulates with the zygomatic bone.

• Mammillary process

  The zygomatic process (processus zygomaticus) of the frontal bone articulates with the zygomatic bone.

• I find it difficult to answer

  The zygomatic process (processus zygomaticus) of the frontal bone articulates with the zygomatic bone.

15. What is the area between the superciliary arches on the external surface of the frontal bone called?

• Frontal eminence

  The glabella (glabella) is a smooth area on the external surface of the squamous part of the frontal bone, located between the superciliary arches along the median line. It is an important anthropometric landmark.

• Glabella (glabella)

  The glabella (glabella) is a smooth area on the external surface of the squamous part of the frontal bone, located between the superciliary arches along the median line. It is an important anthropometric landmark.

• Supraorbital margin

  The glabella (glabella) is a smooth area on the external surface of the squamous part of the frontal bone, located between the superciliary arches along the median line. It is an important anthropometric landmark.

• Nasal part

  The glabella (glabella) is a smooth area on the external surface of the squamous part of the frontal bone, located between the superciliary arches along the median line. It is an important anthropometric landmark.

• I find it difficult to answer

  The glabella (glabella) is a smooth area on the external surface of the squamous part of the frontal bone, located between the superciliary arches along the median line. It is an important anthropometric landmark.

16. Is there an air-filled cavity within the frontal bone, and what is it called?

• Yes, it is the frontal sinus

  The frontal bone is a pneumatic bone (ossa pneumatica). Within its squamous and nasal parts is the paired frontal sinus (sinus frontalis), which is lined with mucosa and filled with air.

• No, the frontal bone is entirely cancellous and contains no cavities

  The frontal bone is a pneumatic bone (ossa pneumatica). Within its squamous and nasal parts is the paired frontal sinus (sinus frontalis), which is lined with mucosa and filled with air.

• Yes, it is the maxillary sinus

  The frontal bone is a pneumatic bone (ossa pneumatica). Within its squamous and nasal parts is the paired frontal sinus (sinus frontalis), which is lined with mucosa and filled with air.

• Yes, it is the sphenoidal sinus

  The frontal bone is a pneumatic bone (ossa pneumatica). Within its squamous and nasal parts is the paired frontal sinus (sinus frontalis), which is lined with mucosa and filled with air.

• I find it difficult to answer

  The frontal bone is a pneumatic bone (ossa pneumatica). Within its squamous and nasal parts is the paired frontal sinus (sinus frontalis), which is lined with mucosa and filled with air.

17. Where does the frontal sinus open?

• Into the superior nasal meatus.

  The frontal sinus opens into the middle nasal meatus.

• Into the middle nasal meatus.

  The frontal sinus opens into the middle nasal meatus.

• Into the inferior nasal meatus.

  The frontal sinus opens into the middle nasal meatus.

• Directly into the nasopharyngeal cavity

  The frontal sinus opens into the middle nasal meatus.

• I find it difficult to answer

  The frontal sinus opens into the middle nasal meatus.

18. Which of the following functions is NOT performed by the paranasal sinuses (pneumatic cavities) of the bones of the cranium?

• Humidification, warming, and purification of inhaled air

  The paranasal sinuses perform 4 main functions: 1. Air conditioning: they warm, humidify, and purify inhaled air. 2. Reduction of cranial mass: they reduce the weight of the bones without compromising their strength. 3. Voice resonance: they impart timbre and volume to speech. 4. Protection (shock absorption): they cushion impacts in the facial region, protecting the brain. The sinuses do not produce hormones.

• Production of hormones that regulate the growth of the bones of the viscerocranium

  The paranasal sinuses perform 4 main functions: 1. Air conditioning: they warm, humidify, and purify inhaled air. 2. Reduction of cranial mass: they reduce the weight of the bones without compromising their strength. 3. Voice resonance: they impart timbre and volume to speech. 4. Protection (shock absorption): they cushion impacts in the facial region, protecting the brain. The sinuses do not produce hormones.

• Reduction of the mass of the neurocranium

  The paranasal sinuses perform 4 main functions: 1. Air conditioning: they warm, humidify, and purify inhaled air. 2. Reduction of cranial mass: they reduce the weight of the bones without compromising their strength. 3. Voice resonance: they impart timbre and volume to speech. 4. Protection (shock absorption): they cushion impacts in the facial region, protecting the brain. The sinuses do not produce hormones.

• Contribution to the individual timbre and sound of the voice (resonator function)

  The paranasal sinuses perform 4 main functions: 1. Air conditioning: they warm, humidify, and purify inhaled air. 2. Reduction of cranial mass: they reduce the weight of the bones without compromising their strength. 3. Voice resonance: they impart timbre and volume to speech. 4. Protection (shock absorption): they cushion impacts in the facial region, protecting the brain. The sinuses do not produce hormones.

• I find it difficult to answer

  The paranasal sinuses perform 4 main functions: 1. Air conditioning: they warm, humidify, and purify inhaled air. 2. Reduction of cranial mass: they reduce the weight of the bones without compromising their strength. 3. Voice resonance: they impart timbre and volume to speech. 4. Protection (shock absorption): they cushion impacts in the facial region, protecting the brain. The sinuses do not produce hormones.

19. With which bone does the frontal bone articulate via the sphenofrontal suture (sutura sphenofrontalis)?

• Ethmoid bone

  The sphenofrontal suture (sutura sphenofrontalis) connects the frontal bone with the greater wings of the sphenoid bone on the lateral wall of the cranium (in the temporal region).

• Sphenoid bone

  The sphenofrontal suture (sutura sphenofrontalis) connects the frontal bone with the greater wings of the sphenoid bone on the lateral wall of the cranium (in the temporal region).

• Parietal bone

  The sphenofrontal suture (sutura sphenofrontalis) connects the frontal bone with the greater wings of the sphenoid bone on the lateral wall of the cranium (in the temporal region).

• Lacrimal bone

  The sphenofrontal suture (sutura sphenofrontalis) connects the frontal bone with the greater wings of the sphenoid bone on the lateral wall of the cranium (in the temporal region).

• I find it difficult to answer

  The sphenofrontal suture (sutura sphenofrontalis) connects the frontal bone with the greater wings of the sphenoid bone on the lateral wall of the cranium (in the temporal region).

20. What are the depressions on the internal surface of the frontal bone produced by the adjacent cerebral gyri called?

• Digital impressions

  Digital impressions (impressiones digitatae, juga cerebralia) are depressions on the internal surface of the bones of the cranium formed by the cerebral gyri.

• Arterial grooves

  Digital impressions (impressiones digitatae, juga cerebralia) are depressions on the internal surface of the bones of the cranium formed by the cerebral gyri.

• Groove for the superior sagittal sinus

  Digital impressions (impressiones digitatae, juga cerebralia) are depressions on the internal surface of the bones of the cranium formed by the cerebral gyri.

• Grooves for the venous sinuses

  Digital impressions (impressiones digitatae, juga cerebralia) are depressions on the internal surface of the bones of the cranium formed by the cerebral gyri.

• I find it difficult to answer

  Digital impressions (impressiones digitatae, juga cerebralia) are depressions on the internal surface of the bones of the cranium formed by the cerebral gyri.