D. The Skull

Learning Objectives

By the end of this section, students should be able to:

  • Identify and describe the 8 cranial and 14 facial bones of the skull.
  • Locate and name key foramina, processes, and sutures on the skull.
  • Distinguish between adult and fetal skull features, including fontanelles.
  • Recognize the location and purpose of paranasal sinuses.

Introduction

The skull protects the brain and supports the structures of the face. It consists of cranial bones (protecting the brain) and facial bones (forming the face and jaw).
You’ll be expected to identify key bones, sutures, and openings.

  1. Use this InnerBody 3D model to explore the skull from all angles.
    Use the new 3D rotate and zoom function to click on individual bones to view names and detailed descriptions.

👉 Click here to rotate a skull in 3D!

📌 What to look for while exploring:

  • Cranial bones (e.g., frontal, parietal, occipital)
  • Facial bones (e.g., maxilla, mandible, zygomatic)
  • Major sutures (e.g., sagittal, coronal, lambdoid)
  • Foramina (e.g., foramen magnum, supraorbital foramen)

2. Need context? This full-body model helps you see how the skull connects to the vertebral column and upper body.

👉 Explore the entire skeletal system