1-the inner surface of lip is lined by :-

c- stratified squamous non- keratinized epithelium

b- stratified squamous keratinized epithelium

5- all the followings are functions of the lingual papillae EXCEPT :-

c- Licking solid and semisolid materials

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11-the inner surface of lip is lined by :-
1. Aa- simple columnar epithelium
2. Bb- stratified squamous keratinized epithelium
3. Cc- stratified squamous non- keratinized epithelium
4. Dd- simple squamous epithelium
22- which of the followings tongue papillae have no taste buds :-
1. Aa- Fungi-form papillae
2. Bb- Filiform papillae
3. Cc- Foliate papillae
4. Dd- Circumvallate papillae
33- which is the hardest substance in the human body :-
1. Aa- the dentin
2. Bb- the cementum
3. Cc- the enamel
4. Dd- the bone
44- these gland open at the bottom of a groove surrounding circumvallate papillae :-
1. Aa- glands of Zeis
2. Bb- glands of Moll
3. Cc- Von Ebner's glands
4. Dd- Littre's gland
55- all the followings are functions of the lingual papillae EXCEPT :-
1. Aa- touch sensation
2. Bb- taste sensation
3. Cc- Licking solid and semisolid materials
4. Dd- help in speech