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Anatomy Year 2 - Head + Neck > Week 2 - DRY > Flashcards

Week 2 - DRY Flashcards

(49 cards)

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1
Q

How many permament teeth do adults have?

A

32

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2
Q

How many incisors do adults have?

A

8

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3
Q

How many canines do adults have?

A

4

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4
Q

How many pre molars do adults have?

A

8

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5
Q

How many molars do adults have?

A

12

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6
Q

What is the name of the large fan-shaped muscle on the side of the head?

A

Temporalis

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7
Q

What are the 2 attachments of the temporalis?

A

Temporal fossa

coronoid process of mandible

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8
Q

If the anterior fibres of the temporalis contract - what is its action on the mandible?

A

Elevate mandible

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9
Q

If the posterior fibres of the temporalis contract - what is its action on the mandible?

A

Retract mandible

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10
Q

What type of joint is the tempero-mandibular joint?

A

Synovial hinge

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11
Q

What are the 2 articular processes that form the TMJ joint?

A

Condylar process of mandible

Mandibular fossa of temporal bone

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12
Q

Name 5 movements that occur at the TMJ.

A

Elevation

Depression

Protraction

Retraction

Lateral movements

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13
Q

Name the 4 muscles of mastication

A

Temporalis

Masseter

Lateral pterygoid

Medial pterygoid

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14
Q

Name the 2 attachments of the masseter muscle.

A

Zygomatic arch

Outer surface of ramus of mandible (coronoid process as well)

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15
Q

The lateral pterygoid muscle attaches to what surface of the lateral pterygoid plate?

A

Lateral aspect

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16
Q

The medial pterygoid muscle attaches to what surface of the lateral pterygoid plate?

A

Medial

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17
Q

How does the lateral pterygoid muslce attach to the mandible?

A

Enters into the joint capsule of the TMJ to insert onto neck of mandible

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18
Q

To which part of the mandible does the medial pterygoid attach?

A

Inner surface of ramus

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19
Q

When both lateral pterygoids contract, they cause what movement?

A

Protrusion

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20
Q

When the lateral pterygoid muscle contracts with the medial pterygoid of the same side, what happens?

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A

Lateral movement

21
Q

When the two medial pterygoid muscles contract, what is their action?

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A

Elevation of mandible (and protrusion)

22
Q

The muscles of mastication produce elevation of the mandible.

What group of muscles produce depression of the mandible?

Study These Flashcards
A

Suprahyoid muscles

23
Q

Name the suprahyoid muscles that cause depression of the mandible (3 out of the 4 muscles do)

Study These Flashcards
A

Geniohyoid

Mylohyoid

Digastric

(Not stylohyoid)

24
Q

What is the innervation of the muscles of mastication?

Study These Flashcards
A

Mandibular branch of Trigeminal nerve

25
The mandibular division of the trigeminal nerve emerges from the cranial cavity through the .................. foramen
Ovale
26
One of its sensory branches, the ................. ................... nerve, enters into the mandibular foramen and provides sensory innervation to the mandibular area.
Inferior alveolar nerve
27
What is the name of the space between the lips, teeth and cheeks?
Oral vestibule
28
What muscle, inervated by the facial nerve, lies in the lateral walls of the oral cavity?
Buccinator
29
What muscle of facial expression contracts to cause closing/pursing of the lips?
Orbicularis oris
30
The roof of the mouth is made up of what?
Hard palate (bony) Soft palate
31
Which two bones form the hard palate?
Maxilla (palatine process) Palatine bones (horizontal plate)
32
Name the 5 muscles in the soft palate
Tensor veli palatini levator veli palatini palatoglossus Palatopharyngeus Musculis uvulae
33
What is the nerve supply to the muscles in the soft palate?
Pharyngeal plexus (Except tensor veli palatini - Cr. N V3)
34
What is the collective action of the soft palate muscles?
Elevate soft palate to contact the posterior wall of pharynx. Seals off oral passage from nasopharynx e.g. swallowing
35
The tongue is divided into an anterior 2/3 and posterior 1/3rd by a V shaped sulcus called the ....................
Terminal sulcus
36
What is the embryological significance of the foramen caecum?
Remnant of thyroglossal duct from which thyroid gland developed.
37
The anterior 2/3rds of the tongue has surface projections of the mucous membrane that make it rough called papillae. Name the 3 types.
Fungiform Filiform Vallate
38
The dorsal surface of the posterior 1/3rd of the tongue has surface elevations produced by sub-mucosal lymphoid tissue collection. What is this called?
Lingual tonsil
39
The inferior surface of the tongue contains a fold in its mucous membrane that fixes it to the floor of the mouth. What is it called?
Lingual frenulum
40
Anterior 2/3rds of tongue - what is the general sensory innervation from?
Cr N V 3
41
Anterior 2/3rds of tongue - what is the taste sensation innervation?
Facial nerve
42
Posterior 1/3rd of tongue - general sensory innervation?
Glossopharyngeal
43
Posterior 1/3rd of tongue - taste sensation innervation?
Glossopharyngeal
44
The genioglossus, one of the extrinsic muscles of the tongue, attaches to what ?
Genial tubercles on inner surface of mandible close to midline
45
What nerve innervates all the muscles of the tongue, except one?
Hypoglossal nerve
46
What nerve innervates the parotid gland?
Glossopharyngeal
47
What nerve innervates the sub-mandibular and sub-lingual nerves?
Facial nerve
48
what nerve innervates the palatoglossus? (it is the only extrinsic muscle of the tongue not innervated by the hypoglossal nerve)
vagus (pharyngeal plexus)
49
What structures lie in between the palatoglossal arch and the palatopharyngeal arches of the soft palate?
**Palatine tonsils**

Anatomy Year 2 - Head + Neck (7 decks)

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