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Anatomy > Mouth, Tongue, Salivary glands > Flashcards

Mouth, Tongue, Salivary glands Flashcards

1
Q

Main Muscle of the Lips?

A
  • Orbicularis Oris: Sphincter muscle, makes up bulk of both lips.
  • Function: Speak, whistle, kiss
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2
Q

Main Muscle of the Cheek?

A
  • Buccinator: lies inferior to obicularis oris
  • Function: Compresses/empties the vestibule food while chewing
  • Pierced by duct of parotid gland
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3
Q

Main Cranial nerves innv. the face?

A
  • CN 5 Trigeminal

- CN 7 Facial (5 nerves)

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4
Q

What 5 nerves make up CN 7?

Two Zebras Bit My Cat

A
  1. Temporal
  2. Zygomatic
  3. Buccal
  4. M. Mandibular
  5. Cervical
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5
Q

What makes up oral cavity proper?

A
  • Hard palate
  • Uvula
  • Palaglossus muscle
  • Palatine aponeurosis of soft palate
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6
Q

What makes up the Roof of Mouth?

A
  • Hard palate
  • Soft palate
  • Uvula
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7
Q

What makes up the floor of the mouth?

A
  • Lower lip
  • Tongue (fungiform front, filiform middle, vallate back)
  • Oropharynx
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8
Q

Lateral & Anterior Teeth

A
  • Lower (front to back): 4 Incisors, 2 canines, 2 premolars, 3 molars
  • Upper (front to back): same as lower
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9
Q

Posterior border of mouth

A
  • Oropharyngeal isthmus
  • Palatoglossal fold
  • Pharynx
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10
Q

What are the extrinsic muscles of the Tongue?

A
  • Genioglossus:Most inferior function for protrusion (clear airway during CPR)
  • Hyoglossus: attached to genioglossus on sides-function if for depression
  • Palatoglossus: retraction
  • Styloglossus: elevation
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11
Q

Angiooedema?

A
  • Vascular leakage beneath the dermis mediated by vasoactive mediators (histamine, serotonin, kinins)
  • Complications involve dysphonia, dysphagia, respiratory distress.
  • “Swollen tongue”
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12
Q

What are the salivary glands?

A
  1. Parotid (largest gland, sits on top masseter muscle & penetrates buccinator)
  2. Submandibular (ducts under tongue median)
  3. Sublingual (ducts under tongue lateral)
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13
Q

Parotid sialogram?

A

-Xray of parotid gland that may reveal swelling at the upper 2nd molar through buccinator muscle.

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14
Q

Parotiditis?

A

Mumps = enlarged salivary glands

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15
Q

What parts make up the mandible?

A
  • Coronoid process anterior sup. portion & Ramus makes up the body
  • Condylar process posterior sup. portion
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16
Q

Tempromandibular Joint?

A
  • Forward movement (protrusion) @ upper joint
  • Hinge movement (depression) @ lower joint
  • Lateral pterygoid muscle (helps in chewing and lowering mandible)
  • Depression/opening = Passive
17
Q

Muscles of Mastication?

A
  • Temporalis (fan shaped) originates in temporal fossa
  • Inserts on coronoid process
  • Elevates/retracts mandibles
18
Q

Muscles of Mastication?

A
  • Masseter
  • Origin: Zygomatic arch superior
  • Inserts: Angle of mandible inferior
  • Function: Elevates & retracts mandible
19
Q

Muscles of Mastication?

A
  • Pterygoid muscles
  • 2 heads
  • Medial: elevates, protracts & laterally displaces
  • Lateral: Depresses & protracts
20
Q

Trigeminal nerve

A
  • CN 5
  • Ophthalmic V1 (superior)
  • Maxillary V2 (middle)
  • Mandibular V3 (inferior)
21
Q

TMJ dislocation

A
  • Yawning or blow to open mouth

- When placing mandible back in place caution w/ Facial nerve CN 7 anteriorly

22
Q

Pharynx

A
  • Located posterior to oral cavity
  • Nasopharynx (superior)
  • Oropharynx (Medial)
  • Laryngopharynx (inferior)
23
Q

Waldeyer’s ring

A
  • Ring of Lymphoid tissue in Oropharynx
  • Fist line of Defense
    1. Lingual tonsels (attached to post. tongue)
    2. Pharyngeal tonsils (Lateral sides)
    3. Adenoids (superior/roof)
    4. Tubal tonsils (studs or holes in tissue medial)
24
Q

Inflammed adenoids

A

-Cause eustachian tube blockage & oitis media (infection middle ear)

25
Q

Constrictor muscles of pharynx

A
  • Superior
  • Middle
  • Inferior
  • ALL help with pushing bolus down to esophagus
26
Q

Laryngopharynx

A
  • most inferior
  • epligottis (leaf like structure)
  • attached by thyro-epiglottic ligament
  • Allow for directing bolus into esophagus

Anatomy (10 decks)

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