Lecture Notes: Bones, Sutures, and Landmarks of the Skull

Introduction

• Lecturer: Dr. Morton, anatomist
• Focus: Bones, sutures, and landmarks of the skull, including cranial fossae
• Structure: Anterior, lateral, posterior, superior views; internal view of cranial fossae; inferior skull base view

Key Concepts:

• Skull: Derived from Old Norse, meaning scaly or bald head
• Clinical Relevance: Lecture tailored towards health professional students, emphasizing clinical relevance

Anterior View of the Skull

Bones:

• Frontal Bone: Forehead, above the eyebrows
• Parietal Bones: Lateral sides of the skull
• Sphenoid Bone: Behind and within the orbit
• Temporal Bone: Above the ears
• Zygomatic Bone: Along the cheeks
• Maxilla: Upper jaw, side of the nose
• Nasal Bone: Bridge of the nose
• Mandible: Lower jaw

Sutures:

• Coronal Suture: Up and down suture on the skull

Lateral View of the Skull

Bones:

• Frontal, Parietal, Sphenoid, Temporal, Zygomatic, Maxilla, Nasal: Various roles and positions (as described above)
• Lacrimal Bone: Part of nasolacrimal duct, inside orbit
• Mandible: Chewing
• Occipital Bone: Back of the skull

Sutures:

• Coronal, Squamous, Lambdoid Sutures: Locations between respective bones
• Terryon: Intersection of four bones; clinically relevant for middle meningeal artery

Posterior View of the Skull

Bones & Sutures:

• Parietal, Occipital, Temporal Bones
• Lambdoid and Sagittal Sutures t

Superior View of the Skull

Bones & Sutures:

• Frontal, Parietal, Occipital Bones
• Coronal, Sagittal, Lambdoid Sutures

Inferior View of the Skull

Bones:

• Frontal, Zygomatic, Maxilla, Palatine, Vomer, Sphenoid, Parietal, Temporal, Occipital Bones

Cranial Fossa in X-rays:

• Depressions in cranial cavity: Anterior, middle, and posterior

Conclusion

• Overview of skull anatomy focusing on bones, sutures, landmarks, cranial fossae

Study Tips:

• Familiarize with terms through visual aids and repetitive exposure
• Understand clinical relevance of anatomical features
• Recognize patterns and landmarks in radiographic images