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MCQ 1.1 > Hard And Soft Palate Anatomy > Flashcards

Hard And Soft Palate Anatomy Flashcards

1
Q

What is the aponeurotic plate

A

Where the posterior of the hard palate connects to the soft palate which is purely muscular structure bound by a thick tendinous aponeurosis of the tensor veli palatini muscles on both sides

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2
Q

Where is the palatine raphe

A

Begins just posterior to the incisive papilla and continues posteriorly along the midline

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3
Q

What are the ‘folds’ on the palate called

A

Transverse rugae

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4
Q

What is the hard palate comprised of

A

Bone

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5
Q

What is the soft palate composed of

A

Muscle fibres covered by a mucous membrane

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6
Q

What happens to the soft palate during swallowing

A

It can be elevated to close the pharyngeal isthmus preventing the food bolus from entering the nasopharynx

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7
Q

What are the 3 types of oral mucosa

A

Masticatory
Lining
Specialised mucosa

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8
Q

What is the masticatory oral mucosa

A

Mucosa of the gingiva and palate the bulk of which is firmly bound down directly and tightly to underlying bone (mucoperiosteum) expect for the region at the side of the palate where a submucosa is present

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9
Q

What type of lining does the superior aspect of the palate (nasal cavity) consist of

A

Respiratory ciliated columnar epithelium

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10
Q

What type of lining does the inferior aspect of the palate (oral cavity) consist of

A

Oral mucosa of keratinised stratified squamous epithelium populated by secretory salivary glands

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11
Q

What are the 3 main foramina in the hard palate

A

Incisive foramen
Greater palatine foramen
Lesser palatine foramina

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12
Q

What does the incisive foramen transmit

A

The nasopalatine nerve
Sphenopalatine arteries and veins

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13
Q

What does the greater palatine foramen transmit

A

The anterior (greater) palatine nerve and vessels

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14
Q

What does the lesser palatine foramina transmit

A

The middle and posterior (lesser) palatine nerve and vessels

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15
Q

What is the function of the hard palate

A

In both feeding and speech
Creates a vacuum that forces liquid into the mouth
Tongue essential for creating certain phonetic sounds

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16
Q

What is the sensory innervation of the hard palate

A

Derived from the maxillary branch of the trigeminal nerve (CN V2)

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17
Q

What does the greater palatine nerve innervate

A

Most of the glandular structure of the hard palate

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18
Q

What does the nasopalatine nerve innervate

A

The mucous membrane of the anterior hard palate

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19
Q

What does the lesser palatine nerve innervate

A

The soft palate

20
Q

Where is the hard palates arterial supply

A

Primarily from the greater palatine arteries which run anteriorly form the greater palatine foramen

21
Q

Where is venous drainage of the hard palate

A

Into the pterygoid venous plexus

22
Q

What provides the collateral supply to the palate

A

The anastomosis between the lesser palatine artery and ascending palatine artery

23
Q

What is the anterior hard palate mucosal lining composed of

A

Mucoperiosteum
Rugae
Incisive papilla

24
Q

What is the posterior hard palate mucosal lining composed of

A

Periosteum
Submucosa
Minor salivary glands

25
Q

What is the soft palate mucosal lining composed of

A

Periosteum
Submucosa
Minor salivary glands
Skeletal muscle

26
Q

What is the soft palate comprised of

A

Muscle fibres covered by a mucous membrane

27
Q

What is the fauces

A

An area connecting the oral cavity and the pharynx formed by the soft palate

28
Q

What are the 2 arches binding the tongue and pharynx

A

The palatoglossal arches anteriorly
Palatopharyngeal arches posteriorly

29
Q

What lies between the two arches of the soft palate

A

The palatine tonsils which reside in the tonsillar fossae of the oropharynx either side of the palatopharyngeal wall

30
Q

What happens during speech

A

Soft palate tenses and elevates back of the tongue presses against the soft palate to produce the velar sound (k,g,n)
Closes the communication with the nasal cavity as air escapes the oral cavity

31
Q

What happens during breathing with the soft palate

A

Depresses touching the root of tongue making sure food doesn’t pass to the oropharynx and gets in the way of exhaled air

32
Q

At happens to the soft palate during swallowing

A

Palate tenses and helps push food down the digestive tract
Palate elevates and closes the way to the nasal cavity

33
Q

What are 4 of the muscles of the soft palate innervated by

A

The pharyngeal branch of the vagus nerve (CN X)

34
Q

What is the tensor veli palatini innervated by

A

The medial pterygoid nerve (a branch of the CN V3)

35
Q

What are the 5 muscles of the soft palate

A

Tensor veli palatine
Palatoglossus
Palatopharyngeus
Levator veli palatine
Musculus uvulae

36
Q

Which 3 muscles aid in swallowing

A

Tensor veli palatine
Palatoglossus
Levator veli palatine

37
Q

Which muscle helps in breathing

A

Palatopharyngeus

38
Q

Which muscle aids in moving the uvula

A

Musculus uvulae

39
Q

What is the anterior soft palate sensory innervated by

A

The lesser palatine nerve a branch of the axillary division of the trigeminal nerve (CN V2)

40
Q

What is the posterior sensory part of the soft palate innervated by

A

The pharyngeal branches of the glossopharyngeal nerve (CN IX) and by the plexus around the pharyngeal tonsils formed by the branches of the pharyngeal and lesser palatine nerves

41
Q

What is the motor innervation for the muscles of the soft palate

A

Pharyngeal plexus derived from the vagus nerve (CN X)

42
Q

What is the innervation of the tensor veli palatini muscle

A

The medial pterygoid nerve a branch of the mandibular division of the trigeminal nerve

43
Q

Hat are taste buds innervated by

A

The greater petrosal nerve a branch of the facial nerve (CN VII)

44
Q

What are mucous glands parasympathetically innervated by

A

The postganglionic fibres from the otic ganglion which each the soft palate via the lesser petrosal branch of glossopharyngeal nerve

45
Q

Where does the blood supply for ht soft palate come from

A

Ascending palatine artery a branch of facial artery

46
Q

What is the Velopharyngeal apparatus

A

A muscular valve which extends from the posterior surface of hard palate to posterior pharyngeal wall incl the velum (soft palate), lateral pharyngeal walls and the posterior pharyngeal wall

47
Q

What is the function of the velopharyngeal

A

Create a tight seal between the velum and pharyngeal walls - separate the oral and nasal cavities

MCQ 1.1 (43 decks)

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