CRANIAL BASE (Lat. - BASIS CRANII)

Slides:

Advertisements

Similar presentations

Head & Neck – Lecture 2 د. حيدر جليل الأعسم

Advertisements

2 Divisions Cranium Face

SHANDONG UNIVERSITY Liu Zhiyu

The Skeleton Part A 7.

Bones and cavities of the facial cranium

How to identify the direction of the free limb bones?

Bones Of The Axial Skeleton

WINDSOR UNIVERSITY SCHOOL OF MEDICINE

OSTEOLOGY Is a science which study the morphology and function of the bones which form a skeleton. Skeleton is applied to the framework of hard structures.

Head & Neck Unit – Lecture 3 د. حيدر جليل الأعسم

7 The Skeleton: Part A.

WINDSOR UNIVERSITY SCHOOL OF MEDICINE

CHAPTER # 7(a) THE SKELETAL SYSTEM.

© 2013 Pearson Education, Inc. Skeletal System Composed of bones, cartilages, joints, ligaments 20% of body mass Two major parts –Axial –Appendicular.

INFRATEMPORAL FOSSAE; TMJ

The skull SHANDONG UNIVERSITY Liu Zhiyu

I. CALVARIUM = SKULL CAP- Consists of bones linked by sutures

7 The Skeleton: Part A.

Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Human Anatomy & Physiology SEVENTH EDITION Elaine N. Marieb Katja Hoehn PowerPoint.

IN THE NAME OF ALLAH.

Figure 7.1a The human skeleton.

Anterior cranial fossa Bones: Orbital plate of frontal bone, cribriform plate of ethmoid and lesser wing of sphenoid bone. Features: Frontal crest, foramen.

Head and Neck Dr. SREEKANTH THOTA DEPARTMENT OF ANATOMY.

Anterior Aspects of the Skull

The Skull 主讲：李文春 down. The skull The skull contains 23 bones.The skull is is divided into two parts :cerebral cranium and facial cranium down Up.

The Axial Skeleton Eighty bones segregated into three regions  Skull  Vertebral column  Bony thorax.

2 Landmarks of the Skull 2 3 Santa Cruz Skull 4 Fetal skull : sutures 4.

Head and Neck DEPARTMENT OF ANATOMY. Bones of the Skull The skull bones are made up of external and internal tables of compact bone separated by.

Skull Bones. 28 Bones & Hyoid 6 single 11 paired.

Anterior Skull Base (frontal & ethmoid) Central Skull Base (sphenoid & temporal) Posterior Skull Base (temporal, parietal & occipital)

The Skeleton P A R T A. The Axial Skeleton Eighty bones segregated into three regions Skull Vertebral column Bony thorax.

Human Anatomy & Physiology FIFTH EDITION Elaine N. Marieb PowerPoint ® Lecture Slide Presentation by Vince Austin Copyright © 2003 Pearson Education, Inc.

INTRODUCTION into TOPOGRAPHIC ANATOMY of Head & Neck Prof. Peter Stanko, MD, PhD Oral and Maxillofacial Surgeon Dpt. of Stomatology & Maxillofacial Surgery.

I.M. SECHENOV FIRST MOSCOW STATE MEDICAL UNIVERSITY

7-2 The Skull The Skull : The brain Entrances to respiratory system

LYMPH NODES Prof. Peter Stanko, MD, PhD Oral and Maxillofacial Surgeon

CRANIAL NERVES Prof. Peter Stanko, MD, PhD

Let’s Talk Bone Anatomy Next: Divisions of the Skeleton

TOPOGRAPHIC ANATOMY of the SKULL

HEAD AND NECK DR. J.K. GERALD, (MD, MSc.).

MUSCLES of MASTICATION

Splanchnocranium - Consists of part of skull that is derived from branchial arches - The facial bones are the bones of the anterior and lower human skull.

Skull Base Anatomy Fatih Kökdere.

Temporomandibular joint (abbr. TMJ), Lat

Skull. Semmelweis University, Faculty of Medicine

The Skull with labeled photographs By Andrew W

Skull Anna L. Kiss Department of Anatomy, Histology and Embryology

Appendicular skeleton

© 2017 Pearson Education, Inc.

Nasal Cavity, Paranasal Sinuses, Pterygopalatine Fossa

The Skeleton For descriptive purposes, the skeleton is divided into:

7 The Skeleton: Part A.

Chapter 7 The Skeleton Shilla Chakrabarty, Ph.D.

The bones of the skull protect the brain and guard the entrances to

The Axial Skeleton Study Guide.

Frontal bone Glabella Parietal bone Frontonasal suture

2 Divisions Cranium Face

Figure 9.1a External anatomy of the right lateral aspect of the skull.

7 P A R T A The Skeleton.

A. Introduction 1. A human skull usually consists of 22 bones. 2. The moveable bone in the skull is the mandible. 3. Some cranial and skull bones together.

The Skull and Temporomandibular joint I

Figure 1 Frontal bone Frontal squama of frontal bone Glabella Coronal suture Frontonasal suture Parietal bone Greater wing of Supraorbital notch sphenoid.

Functions of the cranial bones:

7 The Skeleton: Part A.

FORAMINA OF PALATE AND NASAL CAVITY

CLASSIFICATION OF FRACTURES AFTER LE FORT

Presentation transcript:

CRANIAL BASE (Lat. - BASIS CRANII) Prof. Peter Stanko, MD, PhD Oral and Maxillofacial Surgeon Dpt. of Stomatology & Maxillofacial Surgery Comenius University, St Elisabeth Hospital

BASIS CRANII (CRANIAL BASE) A/ BASIS CRANII EXTERNA (external cranial base, outer surface) = three AREAS: ▪ area anterior (syn. nasoorbitalis) ▪ area medialis ▪ area posterior (syn. vertebronuchalis) B/ BASIS CRANII INTERNA (internal cranial base, inner surface) = three CRANIAL FOSSAE: ● fossa cranii ant. ● fossa cranii med. ● fossa cranii post.

External cranial base – I. AREA ANTERIOR (synonym NASOORBITALIS) -medially top of the nasal cavity (meatus nasi sup. dx. + sin.) -laterally roof of the orbits (l. dx. + l. sin.).

External cranial base

External cranial base – II. AREA MEDIALIS -Area pharyngea (clivus) -foramina for. n. V. (for. rotundum, for. ovale) → n. maxillartis, n. mandibulartis -foramina for vessels (canalis caroticus, for. jugulare) -both Temporomandibular joints (abbr. TMJ, Lat. – Articulatio temporomandibularis)

External cranial base

External cranial base – III. AREA POSTERIOR (synonym VERTEBRONUCHALIS) -Foramen occipitale magnum -Atlantooccipital joint (Lat. – Articulatio atlantooccipitalis)

External cranial base

External cranial base

Internal cranial base – I. FOSSA CRANII ANTERIOR -Lamina cribrosa (horizontalis) ossis ethmoidalis -Crista galli (insertion of falx cerebri).

Internal cranial basis - FOSSAE CRANII

Os ethmoidale Crista gali Lamina cribrosa (horizontal) Lamina perpendicularis (vertical) Labyrintus - Celullae ethmoidales (ant., mediae, post.)

Internal cranial base – II. FOSSA CRANII MEDIA -sella turcica (location for hypophysis) ………..roof of sinus sphenoidalis -os petrosum (pyramid) ……..ganglion trigeminale Gasseri (cavum trig. Meckeli) -foramina (for. rotundum, for. ovale) → n. maxillartis, n. mandibulartis

Os sphenoidale

Ganglion trigeminale Gasseri

Internal cranial base – III. FOSSA CRANII POSTERIOR ► Foramen occipitale magnum ► C N S (pons Varolli + medula oblongata + cerebellum).

For. occipitale magnum

Central Nervous System (C N S)

Practical value of the knowledge of cranial base anatomy -trunc anaesthesia (n. maxillaris, n. mandibularis) -infiltration in facial palsy (n. VII) -traumatology (fractures, CNS injuries etc.).

Areas of weakness of cranial base (Lat. – loci minoris resistentiae) Predilection of fracture lines, especially in sites of conection of the weak and strong bones. Thickness of the bones - comparison of the three cranial fossae (cr.f.): ● the anterior cr. f. is the most thin and exposed, ● the medial cr.f. is strong but exposed indirectly through the coronoid process, ●the posterior cr.f. is thick and rarely exposed.

Usual course of fracture lines in cranial base fractures