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IOE Dentistry - Anatomy > Tongue > Flashcards

Tongue Flashcards

1
Q

What are the 3 extrinsic muscles of the tongue?

A

Styloglossus
Hyoglossus
Genioglossus

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2
Q

What is the origin of the Styloglossus?

A

The styloid process of the temporal bone

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3
Q

What is the action of the Styloglossus

A

Lifts the tongue upwards and back

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4
Q

What is the origin of the hyoglossus?

A

The hyoid bone

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5
Q

What is the action of the hyoglossus?

A

Pulls the tongue downwards

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6
Q

What is the origin of the genioglossus?

A

There superior genial tubercles of the mandible

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7
Q

What is the action of the genioglossus?

A

To protrude the tongue

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8
Q

What are the 3 intrinsic muscles of the tongue?

A

Horizontal fibres
Vertical fibres
Longitudinal fibres

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9
Q

What is the action of the horizontal fibres?

A

To make the tongue narrower

Therefore it gets longer and also thicker vertically

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10
Q

What is the action of the vertical fibres?

A

Make the tongue thinner

Therefore it gets wider and also longer

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11
Q

What is the action of the superior longitudinal fibres

A

To curve the tip of the tongue up

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12
Q

What is the action of the inferior longitudinal fibres

A

To curve the tip of the tongue down

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13
Q

Which nerve innervates all the muscles of the tongue?

A

Cranial nerve XII

The hypoglossal nerve

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14
Q

Which nerve supplies the taste sensory of the anterior 2/3 of the tongue

A

The facial nerve (VII)

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15
Q

Which nerve supplies the general sensation of the anterior 2/3 of the tongue

A

The lingual nerve

Which is a branch of the mandibular division of the trigeminal nerve

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16
Q

Which nerve supplies the taste and general sensation of the posterior 1/3 of the tongue

A

The glossopharyngeal nerve (XI)

17
Q

The facial serve supplies what in the tongue

A

The anterior 2/3 specifically the taste sensory

18
Q

The trigeminal nerve supplies what in the tongue? Also state which division of the trigeminal nerve supplies this area

A

The anterior 2/3 specifically rhe general sensation rea of the tongue
The lingual nerve which is a branch of the mandibular nerve supplies this area

19
Q

The glossopharyngeal nerve supplies what in the tongue

A

The taste and general sensation of the posterior 1/3 of the tongue

IOE Dentistry - Anatomy (10 decks)

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