31 Questions
Which cranial nerve provides GSE (motor) innervation to the soft palate?
Hypoglossal nerve (XII)
Which nerve is responsible for taste sensation from the palate?
Facial nerve (VII)
Which nerve innervates the glands of the palate with parasympathetic fibers?
Trigeminal nerve (V2)
Which nerve carries sensory fibers to the anterior two-thirds of the tongue?
Lingual nerve (V3)
Which nerve innervates the submandibular gland?
Facial nerve (VII)
Which cranial nerve is responsible for GSA innervation of the palate primarily through the greater and lesser palatine nerves?
Trigeminal nerve (V2)
Where do the majority of blood supply to the palate come from?
Greater and lesser palatine arteries
Which artery primarily supplies blood to the floor of the oral cavity and tongue?
Lingual artery
Where are the preganglionic parasympathetic nerve cell bodies located for the submandibular and sublingual salivary glands?
Superior salivatory nucleus in the Pons
Which nerve carries preganglionic parasympathetic fibers to the submandibular ganglion?
Lingual nerve
Where do the deep and dorsal lingual veins drain to?
Internal jugular vein (IJV)
Which cranial nerve is responsible for the motor innervation of the genioglossus muscle?
CN XII
In which pharyngeal arch is the posterior 1/3 of the tongue formed?
3rd/4th pharyngeal arches
Which cranial nerve provides motor innervation to the hyoglossus muscle?
CN XII
What causes the tongue to deviate toward the injured side in a lesion of the hypoglossal nerve (CN XII)?
Paralysis of the ipsilateral genioglossus muscle
Which cranial nerve provides motor innervation to the palatoglossus muscle involved in elevating the posterior tongue during swallowing?
CN X
What makes up the oral cavity
A & D
Match the following tongue muscles with their innervating nerve:
Genioglossus = Hypoglossal nerve (CN XII) Hyoglossus = Hypoglossal nerve (CN XII) Styloglossus = Hypoglossal nerve (CN XII) Palatoglossus = Vagus nerve (CN X)
Match the following tongue muscle actions with their description:
Protrude, retract, depress, and elevate the tongue = Extrinsic muscles Contribute to precision movements of the tongue required for speech, eating, and swallowing = Intrinsic muscles
Match the following structures with their description related to the tongue:
Hard palate and soft palate = Body=anterior two-thirds, Root=posterior one-third Terminal sulcus = Separates anterior two-thirds from posterior one-third of the tongue Foramen cecum = Defines the apex of the terminal sulcus
Match the following actions with their corresponding muscle involved in tongue movement:
Protrusion of the tongue in midline during hypoglossal nerve test = Genioglossus muscle Elevating the posterior tongue during swallowing = Palatoglossus muscle
Match the following nerve types with their functions in tongue innervation:
Hypoglossal nerve (CN XII) = Provides motor innervation to most tongue muscles except Palatoglossus Vagus nerve (CN X) = Innervates Palatoglossus muscle
Match the following soft palate muscles with their respective functions:
Palatoglossus = Elevates tongue Palatopharyngeus = Elevates pharynx Tensor veli palatini = Opens auditory tube when swallowing Levator veli palatini = Elevates palate
Match the following parts of the tongue with their innervations:
Anterior two-thirds = Mandibular division of Trigeminal (CNV3) Posterior one-third motor innervation (palatoglossus) = Vagus (CNX) Taste sensation from the posterior tongue = Glossopharyngeal nerve (CN IX) Motor innervation to all intrinsic and extrinsic muscles of the tongue = Hypoglossal nerve (CN XII)
Match the major salivary glands with their associated features:
Submandibular gland = Drain by Wharton's duct into the oral cavity Sublingual gland = Lies inferior to the tongue Parotid gland = Innervated by glossopharyngeal nerve (CN IX) Submandibular ganglion = Preganglionic parasympathetic fibers from facial nerve (CN VII)
Match the following neurovascular structures with their locations in the oral cavity:
Inferior alveolar artery = Supplies mandibular teeth and associated structures Facial artery = Supplies blood to the lips and oral muscles Lingual nerve = Carries general sensory fibers to the anterior two-thirds of the tongue Greater palatine nerve = Provides sensory innervation to the hard palate
Match the functional anatomy descriptions with their corresponding structures:
Palatine process of maxilla and horizontal plates of palatine bones = Form the hard palate's anterior two-thirds Expanded tendon of tensor veli palatini (palatine aponeurosis) = Strengthens the soft palate's posterior one-third Incisive, greater, and lesser palatine foramina = Anatomical features of the hard palate Palatoglossal folds = Boundaries of the oral cavity proper extending posteriorly
Match the following salivary gland structure with its description:
Sublingual gland = Drains into the sublingual folds in the floor of the mouth Submandibular gland = Runs superior to the mylohyoid muscle, deep to sublingual gland Lingual nerve = Passes up to the anterior two-thirds of the tongue Submandibular duct (Wharton’s duct) = Anterior to the lingual nerve
Match the following nerve type with its function in palate innervation:
GVE = Provides parasympathetic innervation from CN V2 via pterygopalatine ganglion SA = Transmits taste sensation from CN VII SOMATIC = Greater and lesser palatine nerves (V2) for general sensory afferents GSE = Pharyngeal plexus (CN X) for soft palate motor innervation
Match the following nerve with its role in innervating the glands of the palate:
CN V2 = Provides parasympathetic innervation to palate glands via pterygopalatine ganglion Deep petrosal nerve = Supplies sympathetic innervation to glands of the palate Greater and lesser palatine nerves (V2) = Primary source of GSA innervation to the palate Pharyngeal plexus (CN X) = Responsible for GSE to the soft palate except tensor veli palatini muscle
Match the pharyngeal arches with the parts of the tongue they form:
1st pharyngeal arch = Anterior 2/3 of the tongue 3rd and 4th pharyngeal arches = Posterior 1/3 of the tongue
This quiz covers the innervation of the tongue, focusing on the motor and sensory pathways as well as the different muscles that contribute to the movement and shape of the tongue.
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