Advanced Tongue Quiz

Q1. Why does the protruded tongue deviate toward the injured side after a unilateral hypoglossal nerve lesion?

• The lingual nerve becomes hyperactive
• The palatoglossus paralyzes the mandible
• The intact genioglossus pushes the tongue toward the weak side
• The injured styloglossus pulls the tongue toward the normal side

Q2. Why can a tongue malignancy metastasize to cervical lymph nodes on both sides?

• Lymph enters the thoracic duct without passing through lymph nodes
• The tongue has no lymphatic vessels
• All tongue lymph drains only to parotid nodes
• Tongue lymphatics communicate across the midline

Q3. Which lymph nodes commonly receive lymph directly from the tip of the tongue?

• Submental lymph nodes
• Occipital lymph nodes
• Popliteal lymph nodes
• Preauricular lymph nodes

Q4. Which lymph nodes commonly receive drainage from the lateral part of the anterior two-thirds of the tongue?

• Mastoid lymph nodes
• Axillary lymph nodes
• Submandibular lymph nodes
• Superficial inguinal lymph nodes

Q5. Which upper deep cervical node is particularly associated with lymphatic drainage from the posterior tongue?

• Pretracheal node
• Popliteal node
• Jugulodigastric node
• Submental node only

Q6. From which pharyngeal arch does most of the mucosa of the anterior two-thirds of the tongue develop?

• Fourth pharyngeal arch
• Third pharyngeal arch
• First pharyngeal arch
• Second pharyngeal arch

Q7. From which pharyngeal arch does most of the posterior one-third of the tongue develop?

• Sixth pharyngeal arch
• Third pharyngeal arch
• First pharyngeal arch
• Second pharyngeal arch

Q8. What embryologic landmark persists at the apex of the sulcus terminalis?

• Piriform recess
• Foramen cecum
• Incisive papilla
• Sublingual caruncle

Q9. Why can a lesion of the chorda tympani before it joins the lingual nerve affect both taste and salivary secretion?

• It supplies general sensation to the posterior tongue
• It carries motor fibers to all tongue muscles
• It carries both taste and preganglionic parasympathetic fibers
• It contains only sympathetic fibers to the thyroid gland

Q10. Which statement best integrates the anatomy of the tongue?

• It receives all taste and general sensation exclusively through the facial nerve
• It is a single skeletal muscle supplied entirely by CN XII for all functions
• It combines specialized mucosa, complex musculature, multiple cranial nerve territories, and rich vascular and lymphatic networks
• It is an avascular epithelial organ attached only to the mandible