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Anterior ethmoidal nerve supplies all except:
- a)Maxillary sinus
- b)Interior of nasal cavity
- c)Dural sheath of anterior cranial fossa
- d)Ethmoidal air cells
Correct answer is option 'D'. Can you explain this answer?
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Anterior ethmoidal nerve supplies all except:a)Maxillary sinusb)Interi...
The Anterior Ethmoidal nerve supplies all except Ethmoidal air cells.
Anatomy of Anterior Ethmoidal Nerve:
The Anterior Ethmoidal nerve is a branch of the ophthalmic division of the trigeminal nerve (V1). It enters the anterior cranial fossa via the ethmoidal foramen on the orbital plate of the ethmoid bone. It then divides into a nasal and external branch.
Functions:
The Anterior Ethmoidal nerve provides sensory innervation to the following structures:
- Anterior and superior nasal cavity
- Frontal sinus
- Ethmoidal sinuses
- Dura mater of the anterior cranial fossa
- Meninges of the anterior cranial fossa
- Medial canthus of the eye
- Skin of the upper eyelid and forehead
Clinical Significance:
Damage to the Anterior Ethmoidal nerve can result in loss of sensation to the structures it innervates. This can lead to anosmia (loss of sense of smell), facial pain, and headaches.
Conclusion:
In conclusion, the Anterior Ethmoidal nerve supplies all except the Ethmoidal air cells. The Anterior Ethmoidal nerve plays an important role in providing sensory innervation to the anterior and superior nasal cavity, frontal sinus, dura mater, and meninges of the anterior cranial fossa, and medial canthus of the eye.
Anatomy of Anterior Ethmoidal Nerve:
The Anterior Ethmoidal nerve is a branch of the ophthalmic division of the trigeminal nerve (V1). It enters the anterior cranial fossa via the ethmoidal foramen on the orbital plate of the ethmoid bone. It then divides into a nasal and external branch.
Functions:
The Anterior Ethmoidal nerve provides sensory innervation to the following structures:
- Anterior and superior nasal cavity
- Frontal sinus
- Ethmoidal sinuses
- Dura mater of the anterior cranial fossa
- Meninges of the anterior cranial fossa
- Medial canthus of the eye
- Skin of the upper eyelid and forehead
Clinical Significance:
Damage to the Anterior Ethmoidal nerve can result in loss of sensation to the structures it innervates. This can lead to anosmia (loss of sense of smell), facial pain, and headaches.
Conclusion:
In conclusion, the Anterior Ethmoidal nerve supplies all except the Ethmoidal air cells. The Anterior Ethmoidal nerve plays an important role in providing sensory innervation to the anterior and superior nasal cavity, frontal sinus, dura mater, and meninges of the anterior cranial fossa, and medial canthus of the eye.
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Anterior ethmoidal nerve supplies all except:a)Maxillary sinusb)Interi...
Correct answer is D
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Anterior ethmoidal nerve supplies all except:a)Maxillary sinusb)Interior of nasal cavityc)Dural sheath of anterior cranial fossad)Ethmoidal air cellsCorrect answer is option 'D'. Can you explain this answer?
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