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Dentistry > Anatomy > Flashcards

Anatomy Flashcards

1
Q

What are the two processes of the temporal bone called.

A

Mastoid and styloid process

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2
Q

What does the mental nerve supply?

A

sensory innervation to the anterior territory of the buccal mucosa, lower lip, and the skin of the chin ventral to its foramen

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3
Q

Which bones in the cranium have air spaces?

A

(FEMS)
FRONTAL
ETHMOID
MAXILLA
SPHENOID

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4
Q

What is the pteryion?

A

Where the frontal, temporal and sphenoid bone come together
It is a thin spot in the skull and there is an artery there - if hit by a ball, can rupture an artery and die :(

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5
Q

What is the inverted v shaped boundary on the tongue called?

A

Sulcus terminalis

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6
Q

What are the islands of tissue on the anterior part of the tongue called?

A

Circumvalate papillae

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7
Q

What can happen to some individuals who’s palate doesn’t fuse properly during embryological development?

A

Can get cleft lip or cleft palate

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8
Q

Where is the greater and lesser palatine foramen?

A

On the horizontal plate of palatine bone

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9
Q

What are the 4 different bones contributing to the hard palate?

A
  1. Palatine process of the maxilla
  2. Horizontal bone of palatine bone
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10
Q

Where do the muscles of mastication receive their motor supply from?

A

Facial nerve

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11
Q

What are the divisions of the facial nerve called?

A

Temporal
Zygomatic
Buccal
Mandibular
Cervical

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12
Q

What is Bell’s palsy?

A

The facial nerve gets inflamed by a virus and it causes facial paralysis?

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13
Q

What nerve provides sensory innervation to the face?

A

The Trigeminal Nerve (cranial nerve 5)

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14
Q

What are the 3 divisions of the Trigeminal nerve?

A

Ophthalmic division nerve
Maxillary division nerve
Mandibular division nerve
V1, V2 and V3

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15
Q

What does the carotid artery branch of into?

A

Inter and external carotid arteries

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16
Q

What does the external carotid artery supply?

A

Blood to the teeth (i.e neck and face)

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17
Q

What does the internal carotid artery supply

A

Brain

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18
Q

Through which vessel does blood travel to supply the lower part of the mouth?

A

External carotid artery —> Maxillary artery —> Inferior alveolar artery

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19
Q

What are the main divisions of the external carotid artery?

A

Maxillary, Facial and Lingual

20
Q

What is the name of the artery that branches off the maxillary artery to the eye called?

A

Infraorbital artery

21
Q

What does the descending palatine artery supply blood to?

A

The hard palate/nasal septum

22
Q

What branch of the external carotid artery supplies blood to the soft palate?

A

Facial artery (ascending palatine artery)

23
Q

What branch of the external carotid artery supplies blood to the hard palate?

A

Maxillary artery (descending palatine artery)

24
Q

The descending artery branches off to supply the greater palatine artery; what does it supply blood to?

A

Gingivae of upper teeth AND mucosa of hard palate

25
Q

The ascending artery branches off to the lesser palatine artery; what does it supply blood to?

A

Soft palate

26
Q

The maxillary artery branches off to the middle meningeal artery; what does it supply blood to?

A

The skull

27
Q

Why is the pterion susceptible to trauma?

A

It is a weak/thin part of the skull where the middle meningeal artery is susceptible

28
Q

What is the dura mater and what is its function?

A

Tough membrane around the brain - it helps to protect it

29
Q

What does the lingual artery supply blood to?

A

The tongue, structures in the floor of the mouth including lingual gingivae

30
Q

What are the main vessels draining blood for the head and neck?

A

Internal jugular vein

31
Q

What is the pterygoid plexus?

A

Network of numerous veins that surround the pterygoid segment of the maxillary artery

32
Q

What does genio mean ?

A

Chin

33
Q

Which two muscles work systematically to depress the mandible and pull it inwards?

A

Mylohyoid and geniohyoid

34
Q

What does glossus mean?

A

Tongue

35
Q

What are the 3 extrinsic muscles of the tongue?

A

Genioglossus, Hyoglossus, styloglossus

36
Q

Which cranial nerve is hypoglossal

A

12 (XII)

37
Q

What does the hypoglossal nerve supply?

A

All intrinsic and extrinsic muscles of the tongue EXCEPT for palatoglossus

38
Q

What nerve innervates the palatoglossus (extrinsic muscle of the teeth)

A

Cranial nerve x - Vagus Nerve

39
Q

Which nerve supplies the posterior part of the tongue (sensation and taste)?

A

Glossopharyngeal (Cranial nerve 9)

40
Q

Which nerve supplies the anterior portion of the tongue for taste?

A

Facial nerve (CN VII)

41
Q

Which nerve supplies the anterior portion of the tongue for sensation?

A

Trigeminal nerve (CN V)

42
Q

Which nerve supplies the anterior portion of the tongue for movement?

A

Hypoglossal nerve (CN XII)

43
Q

What are the muscles of mastication?

A

Temporalis, Masseter, Medial Pterygoid, Lateral Pterygoid

44
Q

What other muscle is involved in mastication but is not classified as a muscle of mastication ?

A

Diagastric muscle (has two bellies, posterior and anterior)

45
Q

What nerve supplies the muscles of mastication

A

Trigeminal (CN V) - Mandibular division V3

46
Q

What is a vessel and what are the 3 main vessels in the body?

A

A tube by which blood circulates through the body. The 3 main vessels are arteries, veins and capillaries.

Dentistry (4 decks)

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