Anatomy of Tongue Muscles

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What is the action of the Musculus verticalis when it contracts?

It shortens the tongue

It moves the tongue backward

It stretches the tongue

It flattens the tongue (correct)

Which muscle divides the tongue body incompletely?

Musculus styloglossus

Musculus hyoglossus

Musculus genioglossus

Musculus transversus linguae (correct)

What is the origin of the Musculus hyoglossus?

The side edge of the tongue (correct)

The styloid process

The hyoid bone

The mental spine of the mandible

Which muscle has fibers that run along the inferior surface of the tongue?

Musculus longitudinalis inferior Signup and view all the answers

What is the characteristic of the mucosa of the tongue's dorsum?

It has various types of lingual papillae Signup and view all the answers

Which muscle plate extends from the lesser horn of the hyoid bone to the tongue body?

Musculus chondroglossus Signup and view all the answers

What is the function of unilateral contraction of the tongue muscles?

Lowers the tongue to the same side Signup and view all the answers

Which artery is responsible for the arterial supply to the tongue?

Arteria lingualis Signup and view all the answers

What is the function of the vagus nerve (X) in relation to the tongue?

Innervates the root of the tongue and the epiglottis Signup and view all the answers

Which nerve is responsible for the parasympathetic innervation of the anterior two-thirds of the tongue?

Chorda tympani of the facial nerve (VII) Signup and view all the answers

Which lymph nodes drain the tongue?

Submandibular and submental lymph nodes Signup and view all the answers

What is the primary function of the filiform papillae?

Mechanical function Signup and view all the answers

What is the venous drainage pathway of the tongue?

V.lingualis to internal jugular vein Signup and view all the answers

Where are the foliate papillae typically located?

Along the posterior lateral borders of the tongue Signup and view all the answers

What is a characteristic of the fungiform papillae?

They are partially keratinized Signup and view all the answers

What is the function of the serous Ebner glands' duct openings?

Saliva production Signup and view all the answers

What is the structure of the filiform papillae?

Primary connective tissue cores branching into slender secondary papillae Signup and view all the answers

How many vallate papillae are typically found on the tongue?

7-12 Signup and view all the answers

What is the primary source of parasympathetic innervation to the sublingual gland?

Chorda tympani of the facial nerve (VII) Signup and view all the answers

Which of the following nerves run adjacent to the sublingual gland?

Lingual nerve and submandibular duct Signup and view all the answers

What is the name of the duct that opens together with the submandibular duct at the sublingual caruncle?

Bartholin's duct Signup and view all the answers

Which artery supplies blood to the sublingual gland?

Facial artery Signup and view all the answers

What is the name of the ganglion where the parasympathetic fibers are relayed?

Submandibular ganglion Signup and view all the answers

Which of the following veins drains the venous blood from the sublingual gland?

Submental vein Signup and view all the answers

Where does the joint capsule originate dorsally?

In front of the petrotympanic fissure Signup and view all the answers

What is the function of the Lateral Ligament?

To reinforce the capsule and inhibit lateral movement Signup and view all the answers

Where does the Sphenomandibular Ligament attach on the mandibular ramus?

On the lingula Signup and view all the answers

What is the role of the Pterygomandibular Raphe?

To separate the attachment sites of the buccinator and superior constrictor muscles Signup and view all the answers

How can the discotemporal chamber function?

Either independently as a sliding or translational joint or in conjunction with the discomandibular chamber Signup and view all the answers

What is the direction of the longitudinal axes of the condyles?

They converge towards the anterior edge of the foramen magnum Signup and view all the answers