Tongue Anatomy Quiz: Test Your Knowledge

Podcast Beta

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the surface of the posterior 1/3rd of the tongue like?

Cobblestone (correct)

Smooth

Flat

Rough

What is the function of the intraepithelial structures in the tongue?

Speech formation

Airway protection

Taste perception (correct)

Swallowing

Which muscle of the tongue creates a trough for swallowing?

Vertical

Transvers

Longitudinal

Styloglossus (correct)

What type of muscles permit changes in the shape of the tongue?

Intrinsic muscles Signup and view all the answers

Where are the taste buds mostly located on the tongue?

Dorsal surface Signup and view all the answers

What is located around the posterior margin of the Mylohyoid muscle?

The gland Signup and view all the answers

What divides the gland into two lobes?

The Mylohyoid muscle Signup and view all the answers

What is the relative size of the superficial lobe?

Large Signup and view all the answers

What is the function of the Mylohyoid muscle in relation to the gland?

It separates the gland into two lobes Signup and view all the answers

What is the relative size of the deep lobe?

Small Signup and view all the answers

What is the location of the thyropharyngeal part?

Superiorly Signup and view all the answers

What is the composition of the thyropharyngeal part?

Most of the muscle Signup and view all the answers

What defines the triangular gap between the thyropharyngeal and cricopharyngeal parts?

Orientations of muscle fibers Signup and view all the answers

What is the name of the triangular gap between the thyropharyngeal and cricopharyngeal parts?

Dehiscence Signup and view all the answers

What is the relationship between the thyropharyngeal and cricopharyngeal parts?

They are parts of the same muscle Signup and view all the answers

Where are the sublingual glands located?

In the anterior part of the floor of the mouth Signup and view all the answers

What is the sublingual gland located between?

The mylohyoid muscle and the body of the mandible Signup and view all the answers

What is the sublingual gland close to?

The mental symphysis Signup and view all the answers

How many sublingual glands are there?

Two Signup and view all the answers

What is the relative size of the sublingual gland compared to the other major salivary glands?

It is the smallest of the major salivary glands Signup and view all the answers

What is the cause of haemoptysis in patients with portal hypertension?

Rupture of oesophageal varices Signup and view all the answers

What is the result of continual gastric reflux in the oesophageal mucosa?

Metaplasia Signup and view all the answers

What is the effect of left atrial hypertrophy on the oesophagus?

Displacement of the oesophagus by the bronchus Signup and view all the answers

What is the characteristic of achalasia?

Failure of the lower oesophageal sphincter to relax Signup and view all the answers

What is a common symptom of oesophageal disorders?

Dysphagia Signup and view all the answers

Study Notes

Tongue Structure

Taste buds are clustered in two groups on either side of the tongue
Mucous membrane of the posterior 1/3rd of the tongue has no lingual papillae and a cobblestone surface due to the presence of lymphoid nodules (lingual tonsil)

Areas of Specialized Epithelia

Specialized mucosa with intraepithelial structures (taste buds) for taste perception (gustation) are found on the dorsal surface of the tongue
Most taste buds are located on the dorsal surface of the tongue

Intrinsic Muscles of the Tongue

Intrinsic muscles (confined to the tongue) permit changes in the shape of the tongue
Types of intrinsic muscles include:
- Longitudinal
- Transversal
- Vertical

Extrinsic Muscles of the Tongue

Extrinsic muscles allow for movement and changes in position of the tongue
The styloglossus muscle creates a trough for swallowing by retracting the tongue

Sublingual Salivary Glands

Sublingual glands are a paired set of salivary glands located in the anterior part of the floor of the mouth
They are situated between the mucous membrane, the mylohyoid muscle, and the body of the mandible close to the mental symphysis
The glands are divided into a superficial (large) and deep (small) lobe by the posterior margin of the mylohyoid muscle

Oesophagus Clinical Correlates

The oesophagus has three points of narrowing at its commencement, where it is crossed by the left bronchus and at its entry into the stomach
Clinical correlates of oesophagus include:
- Portal hypertension leading to oesophageal varices, which may rupture and cause haemoptysis
- Metaplasia in the oesophageal mucosa due to continual gastric reflux (GORD)
- Left atrial hypertrophy and bronchus displacement due to mitral stenosis
- Dysphagia (swallowing difficulties) and achalasia (motor disorder)

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

This quiz covers the structure and function of the tongue, including the location of taste buds and lingual papillae. It also touches on the mucous membrane and intrinsic muscles of the tongue.