Podcast
Questions and Answers
Which muscle is innervated by the oculomotor nerve?
Which muscle is innervated by the oculomotor nerve?
- Superior oblique muscle
- Inferior rectus muscle (correct)
- Orbicularis oculi muscle
- Lateral rectus muscle
What is a primary function of the ophthalmic artery?
What is a primary function of the ophthalmic artery?
- Supplies the parotid gland
- Enters the orbit via the inferior orbital fissure
- Supplies the lacrimal gland (correct)
- Is a branch of the internal carotid artery
Through which structure does the inferior ophthalmic vein leave the orbit?
Through which structure does the inferior ophthalmic vein leave the orbit?
- Optic nerve canal
- Infraorbital canal
- Inferior orbital fissure (correct)
- Superior orbital fissure
Which cranial nerve innervates the levator palpebrae muscle?
Which cranial nerve innervates the levator palpebrae muscle?
Where does the abducens nerve exit the skull?
Where does the abducens nerve exit the skull?
Which artery is a branch of the ophthalmic artery?
Which artery is a branch of the ophthalmic artery?
Which of the following does NOT belong to Waldeyer's ring?
Which of the following does NOT belong to Waldeyer's ring?
Which muscle is primarily responsible for elevating the pharynx?
Which muscle is primarily responsible for elevating the pharynx?
Which nerve contains fibers from the internal branch of the superior laryngeal nerve?
Which nerve contains fibers from the internal branch of the superior laryngeal nerve?
What structure is located in the nasopharynx?
What structure is located in the nasopharynx?
Which gland is innervated by the glossopharyngeal nerve through parasympathetic fibers?
Which gland is innervated by the glossopharyngeal nerve through parasympathetic fibers?
Which part does the vagus nerve leave the skull through?
Which part does the vagus nerve leave the skull through?
What is the primary function of the hypoglossal nerve?
What is the primary function of the hypoglossal nerve?
The infraorbital nerve primarily supplies which of the following?
The infraorbital nerve primarily supplies which of the following?
Which of the following statements about the pterygopalatine ganglion is true?
Which of the following statements about the pterygopalatine ganglion is true?
What is the correct secretory pathway for the lacrimal gland?
What is the correct secretory pathway for the lacrimal gland?
Which muscle is innervated by the glossopharyngeal nerve?
Which muscle is innervated by the glossopharyngeal nerve?
Which foramen does the infraorbital nerve travel through?
Which foramen does the infraorbital nerve travel through?
What is the source of the sympathetic root for the pterygopalatine ganglion?
What is the source of the sympathetic root for the pterygopalatine ganglion?
Which of these nerves is a branch of the mandibular nerve?
Which of these nerves is a branch of the mandibular nerve?
What is true about the third molar?
What is true about the third molar?
Which type of papillae on the tongue is arranged in a V-row in front of the sulcus terminalis?
Which type of papillae on the tongue is arranged in a V-row in front of the sulcus terminalis?
Which muscle does NOT belong to the tongue?
Which muscle does NOT belong to the tongue?
Which of the following is NOT a muscle of mastication?
Which of the following is NOT a muscle of mastication?
To which coat does the iris belong?
To which coat does the iris belong?
What is the primary function of the macula lutea?
What is the primary function of the macula lutea?
Which structure does NOT supply the nose?
Which structure does NOT supply the nose?
Which structures drain into the middle nasal meatus?
Which structures drain into the middle nasal meatus?
Which of the following is NOT a branch of the facial nerve?
Which of the following is NOT a branch of the facial nerve?
What is false about the facial nerve?
What is false about the facial nerve?
Which statement about the corrugator supercili is true?
Which statement about the corrugator supercili is true?
What is false about the muscles of facial expression?
What is false about the muscles of facial expression?
The auditory tube connects which two structures?
The auditory tube connects which two structures?
Which element is found in the internal ear?
Which element is found in the internal ear?
Which component contributes to the facial nerve's function?
Which component contributes to the facial nerve's function?
What is true about the stylohyoid muscle?
What is true about the stylohyoid muscle?
Which structure is involved in producing facial movements?
Which structure is involved in producing facial movements?
Which of the following muscles assists in closing the eyes?
Which of the following muscles assists in closing the eyes?
What distinguishes the facial nerve's functions?
What distinguishes the facial nerve's functions?
Flashcards
Oculomotor nerve function
Oculomotor nerve function
The oculomotor nerve (CN III) supplies the inferior rectus muscle.
Ophthalmic artery origin
Ophthalmic artery origin
The ophthalmic artery branches from the internal carotid artery, entering the orbit via the superior orbital fissure.
Inferior ophthalmic vein exit
Inferior ophthalmic vein exit
The inferior ophthalmic vein exits the orbit through the inferior orbital fissure.
Levator palpebrae muscle innervation
Levator palpebrae muscle innervation
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Abducens nerve exit point
Abducens nerve exit point
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Posterior ethmoidal artery branch from
Posterior ethmoidal artery branch from
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Pirifom recess location
Pirifom recess location
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Structure NOT part of Waldeyer's ring
Structure NOT part of Waldeyer's ring
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Pharyngeal levator muscle
Pharyngeal levator muscle
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Olfactory Nerve Anatomy
Olfactory Nerve Anatomy
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Glossopharyngeal nerve innervation of parotid gland
Glossopharyngeal nerve innervation of parotid gland
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Vagus nerve exit from skull
Vagus nerve exit from skull
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Hypoglossal nerve function
Hypoglossal nerve function
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Infraorbital nerve pathway
Infraorbital nerve pathway
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Pterygopalatine ganglion location
Pterygopalatine ganglion location
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Lacrimal gland secretory pathway
Lacrimal gland secretory pathway
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Infraorbital nerve function
Infraorbital nerve function
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Pterygopalatine ganglion and sympathetic fibers
Pterygopalatine ganglion and sympathetic fibers
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Hypoglossal nerve exit point
Hypoglossal nerve exit point
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Glossopharyngeal nerve role in parotid
Glossopharyngeal nerve role in parotid
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Mandibular Nerve Branch
Mandibular Nerve Branch
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Third Molar
Third Molar
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Vallate Papillae
Vallate Papillae
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Tongue Muscle NOT Belonging
Tongue Muscle NOT Belonging
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Muscle NOT for Mastication
Muscle NOT for Mastication
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Posterior Chamber Location
Posterior Chamber Location
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Iris Location
Iris Location
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Macula Lutea Function
Macula Lutea Function
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Nose Blood Supply
Nose Blood Supply
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Middle Nasal Meatus Drainage
Middle Nasal Meatus Drainage
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Facial nerve location
Facial nerve location
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Facial nerve motor nucleus
Facial nerve motor nucleus
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Facial nerve sensory component
Facial nerve sensory component
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Facial nerve entry point
Facial nerve entry point
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Corrugator supercilii function
Corrugator supercilii function
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Corrugator supercilii location
Corrugator supercilii location
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Facial expression muscles innervation
Facial expression muscles innervation
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Facial expression muscles origin and insertion
Facial expression muscles origin and insertion
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Auditory tube connection
Auditory tube connection
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Internal ear structure
Internal ear structure
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Study Notes
Cranial Nerves and Arteries
- The oculomotor nerve supplies the superior oblique muscle, lateral rectus muscle, inferior rectus muscle, orbicularis oculi muscle, and procerus muscle.
- The ophthalmic artery is a branch of the external carotid artery. It enters the orbit through the superior orbital fissure and supplies the lacrimal gland. It passes through the inferior orbital fissure.
- The inferior ophthalmic vein exits the orbit through the inferior orbital fissure.
- The levator palpebrae muscle is innervated by the oculomotor nerve (CN III).
Other Cranial Nerves
- The abducens nerve leaves the skull through the superior orbital fissure.
- The ophthalmic artery's branches include the posterior ethmoidal artery, angular artery, infraorbital artery, and the superior alveolar artery. The posterior ethmoidal artery is a branch of the ophthalmic artery.
- The piriform recess of the pharynx contains the internal branch of the superior laryngeal nerve. It is located in the nasopharynx.
Other Structures
- The lymphoid Waldeyer's ring does not include parotid lymph nodes.
- The glossopharyngeal nerve innervates the parotid gland via parasympathetic fibers.
- The vagus nerve exits the skull through the lateral part of the jugular foramen
- The hypoglossal nerve innervates all tongue muscles except the palatoglossus and carries sensory innervation from the superior tongue surface. It leaves the skull through the lateral part of the jugular foramen.
- The infraorbital nerve passes through the inferior orbital fissure and supplies the superior lip
- The pterygopalatine ganglion lies on the lateral side of the optic nerve, receives parasympathetic fibers from the greater petrosal nerve, and sympathetic fibers from the plexus of the external carotid artery. It receives a sensory branch from the mandibular nerve.
- The lacrimal gland's secretory pathway involves the superior salivatory nucleus, greater petrosal nerve, pterygopalatine ganglion, zygomatic nerve, and lacrimal nerve.
Additional Details
- The mandibular nerve includes the lingual nerve as a branch.
- Incisors typically have two roots in the maxilla. Molars in the mandible usually have three roots. Third molars sometimes are absent in the decidous dentition.
- The vallate papillae form a V-shaped row in front of the sulcus terminalis.
- Muscles of the tongue include the superior longitudinal muscle, genioglossus muscle, styloglossus muscle, mylohyoid muscle, and hyoglossus muscle. The mylohyoid muscle isn't part of the tongue.
- Muscles of mastication include the temporalis, masseter, medial pterygoid, and lateral pterygoid muscles. The orbicularis oris is not a muscle of mastication.
- The posterior chamber of the eye is part of the vascular coat.
- The iris is part of the vascular coat.
- The macula lutea, or yellow spot, is the point of best vision in the eye.
- The structures that drain into the middle nasal meatus include the nasolacrimal duct and the frontal, maxillary, and anterior ethmoidal sinuses. Only the frontal, maxillary, and anterior ethmoidal sinuses are included.
- The facial nerve has a component called the intermediate nerve, which is smaller. Its motor nucleus is in the brainstem.
- The corrugator supercilii muscle produces horizontal wrinkles.
- The auditory tube connects the tympanic cavity with the nasopharynx.
- The incus, sacculus, and stapes are elements of the internal ear.
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Description
Test your knowledge on cranial nerves and their functions, as well as the associated arterial supply. This quiz covers the major cranial nerves, their innervation, and the vascular anatomy related to the orbit. Perfect for students of anatomy and medical professionals.
