Podcast
Questions and Answers
Which type of lingual papillae is most numerous and gives the tongue its rough texture?
Which type of lingual papillae is most numerous and gives the tongue its rough texture?
Which lingual papillae are primarily involved in taste sensation?
Which lingual papillae are primarily involved in taste sensation?
What characteristic distinguishes fungiform papillae from filiform papillae?
What characteristic distinguishes fungiform papillae from filiform papillae?
Where on the tongue are fungiform papillae primarily located?
Where on the tongue are fungiform papillae primarily located?
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What is the primary function of filiform papillae?
What is the primary function of filiform papillae?
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Which lingual papillae have a mushroom-like structure and are larger than filiform papillae?
Which lingual papillae have a mushroom-like structure and are larger than filiform papillae?
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Which type of papillae is NOT found near the sulcus terminalis?
Which type of papillae is NOT found near the sulcus terminalis?
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Which structure aids in identifying the features of the tongue, especially the ridges along the border?
Which structure aids in identifying the features of the tongue, especially the ridges along the border?
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What appearance can filiform papillae show if keratin increases?
What appearance can filiform papillae show if keratin increases?
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What is the primary function of the longitudinal muscle of the tongue?
What is the primary function of the longitudinal muscle of the tongue?
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Which muscle primarily flattens and broadens the tongue?
Which muscle primarily flattens and broadens the tongue?
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The hypoglossal nerve is primarily responsible for controlling which aspect of the tongue?
The hypoglossal nerve is primarily responsible for controlling which aspect of the tongue?
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What role does the transverse muscle play in the functioning of the tongue?
What role does the transverse muscle play in the functioning of the tongue?
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Which artery is primarily associated with the muscles of the tongue?
Which artery is primarily associated with the muscles of the tongue?
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Which of the following accurately describes the location of the genioglossus muscle?
Which of the following accurately describes the location of the genioglossus muscle?
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What is the primary function of Von Ebner glands in relation to circumvallate papillae?
What is the primary function of Von Ebner glands in relation to circumvallate papillae?
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Which type of epithelial cells are primarily found at the outer layer of circumvallate papillae?
Which type of epithelial cells are primarily found at the outer layer of circumvallate papillae?
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What type of cells are primarily found in the central portion of a taste bud?
What type of cells are primarily found in the central portion of a taste bud?
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What indicates that a food might be nutrient-rich according to taste responses?
What indicates that a food might be nutrient-rich according to taste responses?
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How often does the turnover of taste bud cells occur?
How often does the turnover of taste bud cells occur?
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What role does the taste pore play in the function of taste buds?
What role does the taste pore play in the function of taste buds?
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Where are circumvallate papillae primarily located?
Where are circumvallate papillae primarily located?
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What is the primary sensory function of taste perception?
What is the primary sensory function of taste perception?
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Which type of papillae consists of 4-11 parallel ridges?
Which type of papillae consists of 4-11 parallel ridges?
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What initiates the digestive process related to the sense of taste?
What initiates the digestive process related to the sense of taste?
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Which muscle is responsible for pulling the tongue forwards to protrude from the mouth?
Which muscle is responsible for pulling the tongue forwards to protrude from the mouth?
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What is the action of the Hyoglossus muscle?
What is the action of the Hyoglossus muscle?
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Which nerve innervates the Platoglossus muscle?
Which nerve innervates the Platoglossus muscle?
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What is the primary action of the Styloglossus muscle?
What is the primary action of the Styloglossus muscle?
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Where does the Genioglossus muscle originate?
Where does the Genioglossus muscle originate?
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Which intrinsic muscle of the tongue is involved in shortening the tongue?
Which intrinsic muscle of the tongue is involved in shortening the tongue?
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What is the origin of the Hyoglossus muscle?
What is the origin of the Hyoglossus muscle?
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What is the blood supply to the Genioglossus muscle?
What is the blood supply to the Genioglossus muscle?
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Which muscle is primarily responsible for lifting up the tongue?
Which muscle is primarily responsible for lifting up the tongue?
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What is the insertion point of the Styloglossus muscle?
What is the insertion point of the Styloglossus muscle?
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What is the primary appearance issue associated with black hairy tongue?
What is the primary appearance issue associated with black hairy tongue?
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What contributes to the condition known as black hairy tongue?
What contributes to the condition known as black hairy tongue?
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Which type of cancer makes up 95% of oropharyngeal cancers?
Which type of cancer makes up 95% of oropharyngeal cancers?
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Where is the most common site of squamous cell carcinoma in the oropharynx?
Where is the most common site of squamous cell carcinoma in the oropharynx?
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What is the recommended treatment for black hairy tongue?
What is the recommended treatment for black hairy tongue?
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Which type of papillae are known to contain taste buds?
Which type of papillae are known to contain taste buds?
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Which condition is characterized by the overgrowth of cells on the tongue, leading to elongated papillae?
Which condition is characterized by the overgrowth of cells on the tongue, leading to elongated papillae?
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Which of the following is NOT a commonly affected site by squamous cell carcinoma?
Which of the following is NOT a commonly affected site by squamous cell carcinoma?
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The presence of food, bacteria, and yeast in the mouth can lead to discoloration in which oral condition?
The presence of food, bacteria, and yeast in the mouth can lead to discoloration in which oral condition?
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Which lifestyle change can help treat black hairy tongue?
Which lifestyle change can help treat black hairy tongue?
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Study Notes
The Tongue
- The tongue is covered in non-keratinized stratified squamous epithelium, except for the dorsal surface which is keratinized.
- There are ridges along the lateral border of the tongue made up of foliate papillae.
- The lingual frenum anchors the tongue to the floor of the mouth.
- The majority of the tongue’s surface is covered in filiform papillae, these are small, conical, and keratinized, giving the tongue its rough texture.
- Fungiform papillae are visible as red dots scattered across the tongue, concentrated on the tip and lateral borders.
- Circumvallate papillae are large, mushroom-shaped structures located anterior to the sulcus terminalis, visible when the tongue is arched and extended.
- Foliate papillae are leaf-like structures present on the lateral borders of the tongue.
- Taste buds are barrel-shaped structures found on the fungiform, foliate, and circumvallate papillae.
- Taste buds contain supporting cells and taste cells.
Taste
- Taste cells are located in the central portion of the taste bud, with the taste pore opening at the surface.
- The taste pore allows dissolved food molecules to interact with taste receptors, generating taste sensations.
- The taste cells are linked to sensory neuron processes which transmit taste information to the central nervous system.
The Tongue and Digestion
- The tongue plays a crucial role in taste, chewing, and swallowing.
- Taste sensations help us identify potential nutrients and toxins in food.
- Taste is linked to other senses (sight, smell, sound, and touch), activating saliva production and gastric juices.
Abnormal Conditions of the Tongue
- Black hairy tongue is caused by an overgrowth of papillae, trapping food, bacteria, and yeast.
- Squamous cell carcinoma (SCC), the most common type of oropharyngeal cancer, can affect the tongue, particularly the posterior lateral border or ventral surface.
Muscles of the Tongue
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Intrinsic muscles: These muscles are entirely located within the tongue, responsible for shaping, shortening, and lengthening the tongue.
- Superior longitudinal muscle
- Inferior longitudinal muscle
- Vertical muscle
- Transverse muscle
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Extrinsic muscles: These muscles originate outside the tongue, responsible for movement and positioning of the tongue.
- Genioglossus
- Hyoglossus
- Styloglossus
- Palatoglossus
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Description
Explore the intricate anatomy of the tongue, including its various papillae and the role of taste buds. This quiz delves into the structural features that contribute to taste perception, highlighting the differences between foliate, fungiform, and circumvallate papillae. Test your knowledge on the key aspects of the tongue's anatomy and functionality.
