Exam 24: The Tongue

Which muscles run anterior to posterior within the tongue (select all that apply)?

The tongue develops from a swelling that arises out of the anterior portion of the pharyngeal arches. This swelling develops from the future floor of the mouth.

Contraction of the longitudinal muscles lengthens the tongue because this muscle group is longest in length.

The area near the midline on the dorsum of the tongue, behind the vallate papillae, is known as the

Which muscle group runs anterior to posterior and lies near the ventral surface of the tongue?

The lingual tonsils help to fight infection.

The genioglossus pair of muscles aids in each of the tongue actions EXCEPT one. Which one is the EXCEPTION?

The genioglossus muscle is considered extrinsic because it starts and ends wholly in the tongue.

Each of the following is involved in the formation of the tongue EXCEPT one. Which one is the EXCEPTION?

The tongue is similar to the gingiva in indicating a patient's overall health.

The fungiform papillae do not have taste buds.

The ventral surface of the tongue is keratinized. The dorsum of the tongue has thick parakeratinized to keratinized epithelium.

The tongue is an epithelial sac filled with muscle, connective tissue, and fat. The muscle component is categorized as voluntary striated muscle.

The anterior two-thirds of the tongue is covered with ectoderm-derived epithelium. This portion of the tongue originates from the copula of the third arch.

The root of the tongue and the epiglottis develop from the copula. The arch of origin is the fourth pharyngeal.

Which of the following have taste buds (select all that apply)?

The circumvallate papillae are also referred to filiform. The fungiform and vallate papillae are located on the ventral surface of the tongue.

The circumvallate papillae anatomically divide the anterior two-thirds of the palate from the posterior one-third because they are positioned about two-thirds of the way back on the tongue.

The area MOST likely to develop undetected oral cancer is the

When the transverse fiber group overextends a condition called hairy tongue can result because food and bacterial pigments become trapped between the papillae.