Anatomy: Maxilla Bone

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Listen to an AI-generated conversation about this lesson

Questions and Answers

A patient presents with numbness in the upper lip and cheek following a facial fracture. Which foramen is MOST likely affected, based on the sensory distribution?

  • Incisive foramen
  • Infraorbital foramen (correct)
  • Mental foramen
  • Foramen ovale

A surgeon is planning a procedure involving the removal of a tumor located near the anterior nasal spine. Which of the following structures is at the HIGHEST risk of being damaged during the procedure?

  • Zygomatic process of the maxilla
  • Frontal process of the maxilla
  • Palatine process of the maxilla
  • Intermaxillary suture (correct)

During a surgical repair of a cleft palate, which anatomical structure's proper alignment and fusion is the MOST critical for restoring the integrity of the hard palate?

  • Alveolar process
  • Frontal process
  • Palatine process (correct)
  • Zygomatic process

A patient presents with a chronic sinus infection. Imaging reveals a blockage of the drainage pathway from the maxillary sinus. Which of the following anatomical structures MOST directly communicates with the maxillary sinus, allowing for drainage?

<p>Nasal cavity (B)</p> Signup and view all the answers

Following a blow to the face, a patient exhibits enophthalmos (sunken eye) and diplopia (double vision). Which of the following bones, articulating with the maxilla, is MOST likely fractured, contributing to these symptoms?

<p>Zygomatic bone (B)</p> Signup and view all the answers

A patient requires a dental implant in the upper jaw. The surgeon must carefully assess the volume and density of which structure within the maxilla to ensure successful implant placement?

<p>Alveolar process (A)</p> Signup and view all the answers

During a rhinoplasty, a surgeon aims to reshape the nasal bridge. Which process of the maxilla directly contributes to the bony structure that supports the lower aspect of the nose?

<p>Frontal process (B)</p> Signup and view all the answers

A forensic anthropologist is examining a skull and notes that the intermaxillary suture is completely fused with no visible line. This MOST likely indicates that the individual was:

<p>An older adult (C)</p> Signup and view all the answers

A patient is diagnosed with a tumor that has eroded the floor of the orbit, extending into the maxillary sinus. Which wall of the maxillary sinus has been MOST directly affected by the tumor's growth?

<p>Superior wall (D)</p> Signup and view all the answers

A patient reports loss of sensation of the anterior hard palate after a surgical procedure. Damage to what structure during the procedure is the MOST likely cause?

<p>Nasopalatine nerve (D)</p> Signup and view all the answers

Flashcards

Maxilla

The maxillary bone, forming the upper jaw and contributing to the orbit, nose, and palate.

Frontal process of maxilla

Projects upwards to articulate with the frontal bone.

Zygomatic process of maxilla

Projects laterally to articulate with the zygomatic bone (cheekbone).

Alveolar process of maxilla

Contains the sockets for the upper (maxillary) teeth.

Signup and view all the flashcards

Palatine process of maxilla

Forms the anterior part of the hard palate (roof of the mouth).

Signup and view all the flashcards

Infraorbital foramen

Located below the orbit, transmits the infraorbital nerve and vessels.

Signup and view all the flashcards

Incisive foramen

Located in the midline of the hard palate, transmits the nasopalatine nerve and vessels.

Signup and view all the flashcards

Maxillary Sinus

Air-filled cavity within the maxilla, communicating with the nasal cavity.

Signup and view all the flashcards

Cleft palate

Failure of the palatine processes to fuse during development.

Signup and view all the flashcards

Sinusitis

Inflammation of the maxillary sinus.

Signup and view all the flashcards

Study Notes

  • The maxilla is also known as the maxillary bone

Anatomy

  • The maxilla forms the upper jaw
  • It contributes to the formation of the:
    • Orbit
    • Nose
    • Palate
  • The maxilla contains the maxillary sinus
  • Paired bone that fuses at the intermaxillary suture
  • The maxilla articulates with:
    • Nasal bone
    • Frontal bone
    • Lacrimal bone
    • Ethmoid bone
    • Palatine bone
    • Zygomatic bone
    • Vomer
    • Inferior nasal concha

Parts of the Maxilla

  • Body: The main part of the maxilla
  • Frontal process: Projects upwards to articulate with the frontal bone
  • Zygomatic process: Projects laterally to articulate with the zygomatic bone
  • Alveolar process: Contains the sockets for the maxillary teeth
  • Palatine process: Forms the anterior part of the hard palate

Foramina and Canals

  • Infraorbital foramen: Located below the orbit, transmits the infraorbital nerve and vessels
  • Incisive foramen: Located in the midline of the hard palate, transmits the nasopalatine nerve and vessels
  • Maxillary sinus: A large air-filled cavity within the body of the maxilla, that communicates with the nasal cavity

Functions

  • Supports the upper teeth
  • Forms part of the facial skeleton
  • Contributes to the formation of the nasal cavity, orbit, and palate
  • Contains the maxillary sinus, which helps to humidify and filter air, as well as lighten the skull

Clinical Significance

  • Maxillary fractures are common facial injuries, often resulting from trauma
  • Cleft palate results from failure of the palatine processes to fuse during development
  • Sinusitis: Inflammation of the maxillary sinus
  • Tumors can arise within the maxilla, such as ameloblastomas or carcinomas

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

More Like This

Anatomy of Maxilla Bone
26 questions

Anatomy of Maxilla Bone

IrresistibleTroll avatar
IrresistibleTroll
Articulations of the Maxilla Quiz
50 questions
Maxilla
27 questions

Maxilla

UserFriendlySagacity4401 avatar
UserFriendlySagacity4401
Maxilla Quiz ODS (learning outcomes)
10 questions
Use Quizgecko on...
Browser
Mobile App
Open
Browser
Browser