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Anatomy 3 Final General > Oral cavity > Flashcards

Oral cavity Flashcards

1
Q

Extend from where to where?

A

From Lips to the entrance of the Pharynx

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2
Q

Structure/Parts of the oral cavity?

A
  1. Tongue
  2. Teeth
  3. Salivary Gl
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3
Q

Borders of the oral cavity

A 
Rostrally - LIPS
Laterally - CHEEKS
ROOF - HARD PALATE (Palatun durum)
Ventrally - TONGUE
FLOOR - Suprahyal Muscles
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4
Q

What does the ORal Cavity communicate with caudally?

A

OROPHARYNX

Is the ISTMUS FAUCIUM formed by the:

  1. Root of the Tongue
  2. Soft palate (Palatum Molle)
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5
Q

Oral cavity is divided by teeth and the alveolar process into the?

A

VESTIBULE and ORAL CAVITY PROPER
- They communicate via:

  1. Interdental spaces (DIASTEMMA) and
    2 The space btw the last morals
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6
Q

CAVUM ORIS PROPRIUM

A

Enclosed by teeth

Limited caudally by ARCUD PALATOGLOSSUS

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7
Q

Structures of the CAVUM ORIS PROPRIUM (inside)

A

CAVUM ORIS PROPRIUM - Enclosed by the teeth
- Limited caudally by Arcus palatoglossus

1.Vestibule
2.canine Tooth
2A PHILTRUM
3. HARD PALATE
4. SOFT PALATE
5. TOUNGE
6. SUBLINGUAL CARUNCULA
7. PALATOGLOSSAL ARCH (limited caudaly by)
8. PALATINE TONSIL
9. FRENULUM

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8
Q

Where do we find the DIASTEMMA ?

A

Space btw the incissors and check teeth

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9
Q

The parts of the LIP?!

A

LIPS = Labia Oris!

  1. UPPER LIP (labium superius)
  2. LOWER LIP (Labium infernus)
  3. labial GLANDS (Latvia Glandularis)
    - In the submucusa
    - Well Developed near the Angle of the MOUTH
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10
Q

What is the philtrum?

A
  • Distinkt median clear from the nasal septum to the upper LIP
  • Devides the upper LIP of carnivores and small ruminants
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11
Q

Interspecial differences regarding the lower LIP

A

In carnivores + Pigs = SMALLER

In OX and EQ = presents the CHIN

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12
Q

Steuctures in/around the ORAL CAVITY

A
  1. LABIA ORIS
  2. PHILTRUM
  3. RIMA ORIS
  4. ANGULUS ORIS
  5. CHEECS (BUCCAE)
    - BUCCAL GLANDS
  6. GUMS (GINGIVAE)
    - margo gingivalis
    - Papilla gingivalis
    - Sulcus gingivalis
  7. HARD PALATE (Palatum Durum)
    - RAPHE PALATI
    - RUGAE PALATI
    - PAPILLA INCICIVA - (Ductus INCICIVA)
  8. SOFT PALATE (Palatum Molle, velum Palatini)
    - UVULA (sus)
  9. Muscles
  10. PALATOGLOSSAL ARCHES (Arcus palatoglossus)
  11. PALATOPHARYNGEAL ARCHES
  12. FOSSA TONSiLLARIS (car)
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13
Q

RIMA ORIS

A

Oral Cleft!
= Entrance of the oral cavity

  • bounded by edges of the upper lips
  • unit on each side of the ANGULIS ORIS
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14
Q

Where does the RIMA ORIS unite?

A

On each side at the:

ANGULUS ORIS

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15
Q

CHEEKS (BUCCAE))

  1. Forms?
  2. Attached to?
  3. Which portion contains which Muscle?
A
  1. Lateral wall of the vestibule (BUCCAL VESTIBULE)
  2. Alveolar margin of the mandible and maxilla in the region of the cheek teeth.
  3. Caudal portion contains M.Masseter
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16
Q

What are the BUCCAL GLANDS, where are they located and where does their ducks open?
Special about the OX and CAR, but what?

A

Located between the oral mucosa and BUCCAL Muscles!

  1. DORSAL BUCCAL GLAND
  2. VENTRAL BUCCAL GLAND
  3. MIDDLE BUCCAL GLAND (OX)
  • Their ducts open into the VESTIBULE
  • DORSAL BUCCAL GLAND in carnivores is located MEDIAL to the ZYGOMATIC ARCH
    = ZYGOMATIC GLAND
17
Q

What are the parts of the GUMS?

And special about the RUMINANTS?

A
  • It is a part of the ORAL MUCOSA
  • United to the Periosteum of the ALVEOLAR PROCESS of the JAWS
  1. MARGO GINGIVALIS:
    encircle the NECK of the teeth
  2. PAPPILLA GINGIVALIS (interdentalis): Mucosal elevation between the teeth.
  3. SULCUS GINGIVALIS:
    Groove inbetween GINGIVA and TOOTH

RU:
- GUMS are MODIFIED
= DENTAL PADS ( PULVINUS DENTALIS)
- DENTAL pads takes the place of the Upper INCISSORS

18
Q

Which part of the oral cavity does the HARD PALATE form?
What is it boardered by?
Hard Palates mucosa in horses?!s

A
  • It forms the roof of the oral cavity.
  • Bounded LATERALLY and ROSTRALLY by:
    UPPER DENTAL ARCH
  • In horses, its mucosa contains VENOUS PLEXUSES
19
Q

Special structures of the HARD PALATE?!

A
  1. RAPHE PALATI
  2. RUGAE PALATiNAE
  3. PAPILLA INCICIVA
20
Q

Hard Palate

RAPHE PALATI

A
  • Median line

- Devides the hard palate into two symetrical halves!

21
Q

Hard Palate
RUGAE PALATINAE
+ special about the OX, but what?
+ Numbers of Palatine ridges in diff species

A
  • on either side of the
    PALATINA RAPHE
  • CORNIFIED
  • In OX: Crests of the ridges are studded by CORNIFIED PAPILLAE
# of PALATINE RIDGES
🐶: 6-10 pairs (dog)
🐷: 20-23 (pig)
🐮: 15-20 (OX)
🐴: 16-18 (horse)
22
Q 
Hard Palate
PAPILLA INCISIVA
What is it?
Where to be Found?
Conceals the?
A
  1. Elevation of mucos membranen at the ROSTRAL end of RAPHE PALATI
  2. Found between:
    - UPPER INCISSORS
    - DENTAL PAD
  3. Orfices of the DUCTUS INCISIVI
23
Q

SOFT PALATE

+ special in PiG?

A

= PALATUM MOLLE, VELUM PALATINUM

  • Caudal continuation of the hard palate
  • Extends into PHARYNGEAL CAVITY
  • LIES NEAR the EPIGLOTTIS
  • Forms the ROOF of the OROPHARYNX
  • Its DORSAL surface forms the FLOOR of the NASOPHARYNX
  • In PIG: Rudimentary UVULA🐷
24
Q

PALATUM MOLLE, VELUM PALATINUM

  • Caudal continuation of the ?
  • Extends into ?
  • LIES?
  • Forms the?
  • Its ? surface forms the ?
A
  1. Hard Palate
  2. PHARYNGEAL CAVITY
  3. NEAR the EPIGLOTTIS
  4. ROOF of the OROPHARYNX
  5. DORSAL surface forms the FLOOR of the NASOPHARYNX
25
Q

Muscles of the soft palate

A

M.Palatini
M. Tensor Veli Palatini
M. Levator Veli Palatini

26
Q

Soft Palate

ARCUS PALATOGLOSSUS

A
  • Mucosal Pillars
  • Connects the soft palate -> Root of Tongue
  • Form the lateral boundaries of the ISTMUS FAUCIUM
27
Q

Soft Palate
ARCUS PALATOGLOSSUS
Connects ?
Forms the ? boundaries of ?

A
  • Soft palate -> Root of Tongue

- LATERAL boundaries of the ISTMUS FAUCIUM

28
Q

Soft Palate

ARCUS PALATOPHARYNGEUS

A
  • Mucosal pillars
  • connects the soft palate with the lateral wall of PHARYNX
  • Contain: LYMPHOID tissue
  • Contain: GLANDULAE PALATINI
29
Q 
Soft Palate 
ARCUS PALATOPHARYNGEUS 
- connects ? with the ? of ?
- Contain: tissue?
- Contain: gland?
A
  1. connects the SOFT PALATE with the LATERAl WALL of PHARYNX
  2. LYMPHOID tissue
  3. GLANDULAE PALATINI
30
Q

Soft palate

FOSSA TONSILLARIS

A 
In CAR
Between:
1. ARCUS PALATOGLOSSUS and
2. ARCUS PALATOPHARYNGEUS 
Houses: PALATINE TONSILE
31
Q

SUBLINGUAL FLOOR of ORAL CAVITY

A

Becomes visuable When Tongue is RAiSEd!

Consist of:

  1. Rostral Part
  2. Prefrenular Part
  3. Two lateral SUBLINGUAL RECESSES
32
Q

SUBLINGUAL FLOOR of ORAL CAViTY

PREFRENULAR PART in general

A
  • LIES inside the ARCH of the INCISSORS
  • Supported ventrally by the incisive part of the mandible
  • its mucous membrane forms => FRENULUM LINGUAE
33
Q

SUBLINGUAL FLOOR of ORAL CAViTY

Structures of the PREFRENULAR PART

A
  1. CARUNCULA SUBLINGUALIS
  2. SuBLINGUAL TONSIL
  3. PARACARUNCULAR GLANDS
34
Q

SUBLINGUAL FLOOR of ORAL CAVITY

PLICA SUBLINGUALIS

A
  • Fold if mucous membrane
  • On the FLOOR of the MOUTH
  • LATERAL to the FRENULUM LINGUAE
  • ends at the CARUNCULA SUBLINGUALIS
  • Along its edges - OPENINGS of EXCRETORY DUCT of the
    POLYSTOMATIC SUBLINGUAL SALIVARY GLAND
35
Q

SUBLINGUAL FLOOR of ORAL CAVITY

LATERAL SUBLINGUAL RECESSES

A

Along the floor of each RECESSES LIES the POLYSTOMATIC SUBLINGUAL salivary gland inside the PLICA SUBLINGUALIS.

Bounded laterally by:

  • Lower cheek teeth
  • GUMS

Bounded medially by:
- Lateral surface of the Tongue

Anatomy 3 Final General (39 decks)

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