Specialized Mucosa of the Tongue By Karen Haldemann

Specialized Mucosa of the Tongue By Karen Haldemann RDH, BSDH

Learning Objectives �Identify the four types of lingual papillae, location, characteristics, and function �Explain the function of a taste bud �Describe how taste sensation is communicated to the brain �Identify the Glands of von Ebner and location �Explain the function of the Glands of von Ebner and how taste sensation is improved

Lingual Papillae https: //heightline. com/miley-cyrus-tattoos-tongue-teeth/

Lingual Papillae �Specialized mucosa �Located on Lateral and dorsal surfaces of the tongue �Small appendages of keratinized epithelium

Four Types of Lingual Papillae https: //www. pinterest. com/pin/363736107383937561/

Four Types of Lingual Papillae �Filiform �*Fungiform �*Foliate �*Circumvallate *These three are associated with taste sensation

Taste Sensation �Taste receptors stimulated upon contact with food �Taste cells and sensory neurons in taste buds � receive messages from taste receptors

Taste Sensation �Sensory neurons send messages to central nervous system � tell brain to taste �Brain identifies certain types of taste

Taste Bud - specialized epithelial cell

Filiform Papillae �Most numerous of the lingual papillae �Location: Dorsal surface of the body of the tongue �Scattered https: //www. semanticscholar. org/paper/Smell-andtaste-disorders. -Wrobel. Leopold/351 e 5 a 32 bddc 9 a 3 b 7 d 2 a 2 cf 939 a 4 d 932 b 69611 c 0/figure/7

Filiform Papillae �Hair-like projections �Look like Christmas trees under magnification �Velvety texture

Filiform Papillae �*NO TASTE BUDS* �Function is mechanical �Guide food to back of pharynx for swallowing

Fungiform Papillae �Less numerous than filiform papillae �Location: dorsal surface of the body of the tongue �Appear as small red dots

Fungiform Papillae http: //digikalla. info/fungiform-papillaepigmentation-of-the-fungiform-papillae-of-the-tongue-a-report-of/ https: //www. semanticscholar. org/paper/Smell-andtaste-disorders. -Wrobel. Leopold/351 e 5 a 32 bddc 9 a 3 b 7 d 2 a 2 cf 939 a 4 d 932 b 69611 c 0/f igure/7

Fungiform Papillae �Slightly raised �Mushroom-shaped �Functions is taste

Fungiform and Filiform Papillae

Foliate Papillae �Location: Most posterior part of the lateral surfaces of the tongue �Appear as vertical ridges parallel to on another

Foliate Papillae http: //screening. iarc. fr/atlasoralglossdef. php? lang=1&key=foliate%20 papillae&img http: //homesonthenet. info/asninfo-normal-tongue-side. html

Foliate Papillae �Leaf-shaped �Function is taste

Circumvallate Papillae �Pronounced: serk – um – val – ate �Located: Posterior part of dorsal surface of the tongue facing the pharynx �Function is taste �bitter

Circumvallate Papillae �Appear in a V-shaped row �Very large �Raised �Mushroom-shaped

Circumvallate Papillae

Circumvallate Papillae �*Glands of von Ebner �Located: �Minor bottom trenches of circumvallate papillae salivary glands �Secrete serous fluid

Circumvallate Papillae �*Glands of von Ebner � Serous fluid cleanses trenches of bitter substances after taste buds have been stimulated

Glands of von Ebner �A. Circumvallate papilla �B. Gland of von Ebner �C. Trench �D. Taste bud

You Should Now Feel Confident to: �Identify the four types of lingual papillae, location, characteristics, and function �Explain the function of a taste bud �Describe how taste sensation is communicated to the brain �Identify the Glands of von Ebner and location �Explain the function of the Glands of von Ebner and how taste sensation is improved

Resources � http: //digikalla. info/fungiform-papillae-pigmentation-of-the-fungiform-papillae-of-thetongue-a-report-of/ � Fehrenbach, M. J. , & Popowics, T. (2015). Illustrated dental embryology, histology, and anatomy (4 th ed. ) Maryland Heights, MO: Saunders of Elsevier, Inc. ISBN: 978 -1 -4557 -7685 -6 � https: //heightline. com/miley-cyrus-tattoos-tongue-teeth/ � http: //homesonthenet. info/asninfo-normal-tongue-side. html/ � https: //www. pinterest. com/pin/363736107383937561/ � http: //screening. iarc. fr/atlasoralglossdef. php? lang=1&key=foliate%20 papillae&img/ � https: //www. semanticscholar. org/paper/Smell-and-taste-disorders. -Wrobel. Leopold/351 e 5 a 32 bddc 9 a 3 b 7 d 2 a 2 cf 939 a 4 d 932 b 69611 c 0/figure/7 THE END