Oral Cavity and Palate

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Which cranial nerve provides GSE (motor) innervation to the soft palate?

Vagus nerve (X)

Facial nerve (VII)

Glossopharyngeal nerve (IX)

Hypoglossal nerve (XII) (correct)

Which nerve is responsible for taste sensation from the palate?

Lingual nerve (V3)

Facial nerve (VII) (correct)

Glossopharyngeal nerve (IX)

Trigeminal nerve (V2)

Which nerve innervates the glands of the palate with parasympathetic fibers?

Vagus nerve (X)

Facial nerve (VII)

Glossopharyngeal nerve (IX)

Trigeminal nerve (V2) (correct)

Which nerve carries sensory fibers to the anterior two-thirds of the tongue?

Lingual nerve (V3) Signup and view all the answers

Which nerve innervates the submandibular gland?

Facial nerve (VII) Signup and view all the answers

Which cranial nerve is responsible for GSA innervation of the palate primarily through the greater and lesser palatine nerves?

Trigeminal nerve (V2) Signup and view all the answers

Where do the majority of blood supply to the palate come from?

Greater and lesser palatine arteries Signup and view all the answers

Which artery primarily supplies blood to the floor of the oral cavity and tongue?

Lingual artery Signup and view all the answers

Where are the preganglionic parasympathetic nerve cell bodies located for the submandibular and sublingual salivary glands?

Superior salivatory nucleus in the Pons Signup and view all the answers

Which nerve carries preganglionic parasympathetic fibers to the submandibular ganglion?

Lingual nerve Signup and view all the answers

Where do the deep and dorsal lingual veins drain to?

Internal jugular vein (IJV) Signup and view all the answers

Which cranial nerve is responsible for the motor innervation of the genioglossus muscle?

CN XII Signup and view all the answers

In which pharyngeal arch is the posterior 1/3 of the tongue formed?

3rd/4th pharyngeal arches Signup and view all the answers

Which cranial nerve provides motor innervation to the hyoglossus muscle?

CN XII Signup and view all the answers

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 Signup and view all the answers

Which cranial nerve provides motor innervation to the palatoglossus muscle involved in elevating the posterior tongue during swallowing?

CN X Signup and view all the answers

What makes up the oral cavity

A & D Signup and view all the answers

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) Signup and view all the answers

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 Signup and view all the answers

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 Signup and view all the answers

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 Signup and view all the answers

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 Signup and view all the answers

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 Signup and view all the answers

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) Signup and view all the answers

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) Signup and view all the answers

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 Signup and view all the answers

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 Signup and view all the answers

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 Signup and view all the answers

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 Signup and view all the answers

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 Signup and view all the answers

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 Signup and view all the answers

Oral Cavity and Palate

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Questions and Answers

Which cranial nerve provides GSE (motor) innervation to the soft palate?

Which nerve is responsible for taste sensation from the palate?

Which nerve innervates the glands of the palate with parasympathetic fibers?

Which nerve carries sensory fibers to the anterior two-thirds of the tongue?

Which nerve innervates the submandibular gland?

Which cranial nerve is responsible for GSA innervation of the palate primarily through the greater and lesser palatine nerves?

Where do the majority of blood supply to the palate come from?

Which artery primarily supplies blood to the floor of the oral cavity and tongue?

Where are the preganglionic parasympathetic nerve cell bodies located for the submandibular and sublingual salivary glands?

Which nerve carries preganglionic parasympathetic fibers to the submandibular ganglion?

Where do the deep and dorsal lingual veins drain to?

Which cranial nerve is responsible for the motor innervation of the genioglossus muscle?

In which pharyngeal arch is the posterior 1/3 of the tongue formed?

Which cranial nerve provides motor innervation to the hyoglossus muscle?

What causes the tongue to deviate toward the injured side in a lesion of the hypoglossal nerve (CN XII)?

Which cranial nerve provides motor innervation to the palatoglossus muscle involved in elevating the posterior tongue during swallowing?

What makes up the oral cavity

Match the following tongue muscles with their innervating nerve:

Match the following tongue muscle actions with their description:

Match the following structures with their description related to the tongue:

Match the following actions with their corresponding muscle involved in tongue movement:

Match the following nerve types with their functions in tongue innervation:

Match the following soft palate muscles with their respective functions:

Match the following parts of the tongue with their innervations:

Match the major salivary glands with their associated features:

Match the following neurovascular structures with their locations in the oral cavity:

Match the functional anatomy descriptions with their corresponding structures:

Match the following salivary gland structure with its description:

Match the following nerve type with its function in palate innervation:

Match the following nerve with its role in innervating the glands of the palate:

Match the pharyngeal arches with the parts of the tongue they form:

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