Facial Anatomy: Bones & Muscles

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Questions and Answers

A patient presents with forehead trauma affecting the upper part of their eye sockets. Which bone is MOST likely involved?

  • Frontal bone (correct)
  • Maxillary bone
  • Nasal bone
  • Zygomatic bone

Which facial bone does NOT contribute directly to the structure of the eye socket (orbit)?

  • Zygomatic bone
  • Maxillary bone
  • Mandible (correct)
  • Frontal bone

A surgeon is planning a reconstructive surgery involving both the cheekbone and the upper jaw. Which two bones are the primary focus of this procedure?

  • Nasal and Mandible
  • Zygomatic and Maxillary bones (correct)
  • Mandible and Frontal bones
  • Frontal and Nasal bones

Damage to which facial structure would MOST directly impair a patient's ability to chew?

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

A professional boxer sustains an injury to the mid-face region. Bruising and swelling around the nose is apparent upon examination. Which bone is MOST likely fractured?

<p>Nasal bone (A)</p> Signup and view all the answers

Damage to the temporal branch of the facial nerve would most likely result in the inability to perform which action?

<p>Raising the eyebrows. (D)</p> Signup and view all the answers

Which artery provides the primary blood supply to the upper lip?

<p>Superior labial artery (A)</p> Signup and view all the answers

A patient presents with numbness in the forehead and upper eyelid. Which branch of the trigeminal nerve is most likely affected?

<p>Ophthalmic nerve (V1) (A)</p> Signup and view all the answers

During a surgical procedure near the mandible, which anatomical structure should be carefully avoided to prevent loss of facial expression on one side?

<p>The parotid gland where the facial nerve branches. (B)</p> Signup and view all the answers

Which facial muscle is primarily responsible for compressing the cheeks, such as when pursing the lips or blowing air?

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

A clinician is palpating the bony structure forming the prominence of the cheek. Which bone are they assessing?

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

If a patient has difficulty pursing their lips, which muscle is most likely affected?

<p>Orbicularis oris (C)</p> Signup and view all the answers

Following a deep laceration to the chin, a patient experiences loss of sensation. Which nerve is MOST likely damaged?

<p>Mandibular branch of the trigeminal nerve (V3) (D)</p> Signup and view all the answers

In reconstructive surgery of the face, understanding the boundaries of which structures is MOST crucial for achieving natural-looking results and minimizing complications related to volume distribution?

<p>Superficial fat compartments (C)</p> Signup and view all the answers

What is the anatomical term for the point where the frontal and nasal bones meet, often used as a reference in facial measurements?

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

Flashcards

Facial Anatomy

The study of the structures of the face, including bones, muscles, nerves, and vessels.

Facial Functions

Sensory perception, expression of emotions, and communication.

Facial Skeleton

Provides structural support and protection for the face.

Key Facial Bones

Frontal, nasal, zygomatic, maxillary, and mandible bones.

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Frontal Bone

Forms the forehead and upper part of the eye sockets.

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Nasal Bones

Forms the bridge of the nose.

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Zygomatic Bones

Contribute to cheekbones and eye socket walls.

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Maxillary Bones

Forms the upper jaw and part of nasal cavity.

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Mandible

The lower jaw and only mobile bone of the skull.

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Facial Muscles

Unique muscles that insert into the skin, enabling facial expressions.

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Facial Nerve (CN VII)

Primary nerve controlling facial expression.

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Trigeminal Nerve (CN V)

Provides sensory innervation to the face.

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Facial Artery

Supplies blood to facial muscles and skin.

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Fat Compartments

Contribute to facial shape and contour.

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Nasion

Point where frontal and nasal bones meet.

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Study Notes

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