Anatomy of Tongue Papillae

Questions and Answers

Which type of papillae is found at the tip and margin of the tongue?

Filiform papillae

Foliate papillae

Circumvallate papillae

Fungiform papillae (correct)

Which intrinsic muscle of the tongue is responsible for making the tongue broad and flat?

Vertical (correct)

Inferior longitudinal

Transverse

Superior longitudinal

What is the arterial supply of the tongue primarily derived from?

Lingual artery (correct)

Internal carotid artery

Maxillary artery

Facial artery

Which extrinsic muscle of the tongue is involved in its retraction and elevation?

Styloglossus Signup and view all the answers

How many circumvallate papillae are typically present on the tongue?

8 to 12 Signup and view all the answers

What is the root of the tongue primarily attached to?

Hyoid bone, palate, mandible, and styloid bone Signup and view all the answers

Which part of the tongue is referred to as the dorsum?

The upper surface of the body of the tongue Signup and view all the answers

What type of papillae is not present on the pharyngeal part of the tongue?

Fungiform papillae Signup and view all the answers

Which structure attaches the inferior surface of the tongue to the floor of the mouth?

Frenulum linguae Signup and view all the answers

What is the space between the lateral and medial glossoepiglottic folds called?

Vallecula Signup and view all the answers

Study Notes

Papillae of the Tongue

Circumvallate Papillae:
- 8 to 12 in number; located anterior to the sulcus terminalis.
- Cylindrical shape with a circular fold surrounding it.
Fungiform Papillae:
- Numerous and found at the tip and margins of the tongue.
- Narrow pedicle with a rounded, bright red head.
Filiform Papillae:
- Present on the dorsum of the tongue.
- Gives a velvet-like appearance; has a conical shape.

Muscles of the Tongue

Intrinsic Muscles:
- Four types:
  - Superior Longitudinal: Shortens the tongue.
  - Inferior Longitudinal: Also shortens the tongue.
  - Vertical: Broadens and flattens the tongue.
  - Transverse: Elongates the tongue.
Extrinsic Muscles:
- Genioglossus: Originates from the genial tubercle; protrudes and depresses the tongue.
- Hyoglossus: From the hyoid bone; retracts and elevates the tongue.
- Styloglossus: From the styloid process; retracts and elevates the tongue.
- Palatoglossus: From the palate; broadens the tongue along the palatine aponeurosis.

Arterial Supply

Lingual Artery: A branch of the external carotid artery; supplies blood to the tongue.

External Features of the Tongue

Structure:
- Muscular organ located on the floor of the oral cavity, involved in speaking, chewing, and swallowing.
- Divided into three parts: root, body, and tip.
Root:
- Attached to mandible, hyoid bone, palate, and styloid bone.
Tip:
- The free part located behind the incisors.
Body:
- Has two surfaces: upper (dorsum) and inferior.
- Dorsum divided by the V-shaped sulcus terminalis into:
  - Oral part (anterior).
  - Pharyngeal part (posterior).
- Foramen caecum located at the apex of the sulcus terminalis.
Foliate Papillae:
- 4 to 5 vertical folds on the lateral margin of the tongue.

Inferior Surface

Covered by mucus; connects to the floor of the mouth via the frenulum linguae.
Contains deep lingual veins and a membrane fold known as plica fimbriata.

Pharyngeal Part

Area behind the sulcus terminalis; lacks papillae but contains numerous lymph nodes known as lingual tonsils.

Posterior Most Part

Attaches to the epiglottis via three folds:
- Median glossoepiglottic fold.
- Right and left lateral glossoepiglottic folds.
The space between these folds is referred to as the vallecula.

Description

This quiz explores the different types of papillae on the tongue, including circumvallate, fungiform, and filiform papillae. Each type is discussed in terms of its location, shape, and unique characteristics. Test your knowledge of the anatomy of the tongue!