To better understand facial numbness (unilateral), it helps to understand the anatomy of the face.

The bones of the face include:

• Frontal bone:
• Forehead
• Mandible:

Lower jaw

• Maxilla:
• Inner cheek bones
• Nasal bones
• Zygoma:
• Outer cheek bones

Anatomy of the face includes:

• Bones of the face and skull
• Muscles of the face
• Arteries and nerves of the face
• The orbit
• The nasal bones
• The jaw
• Temporal artery and parotid gland
• Salivary glands
• Trigeminal nerve