Bones Bones Bones - Liberty Union High School District

Bones Bones Bones - Liberty Union High School District

Bones Bones Bones Chapter 8 Whole skeleton and bones associated with the Skull 8-2 Copyright (c) The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Unit 3 Bones (chapters 8 ) In Chapter 8 you will learn: 1. Bones of the Adult Skeletal System a. Skull bones slides 1-20 b. Vertebral and Thoracic Bones c. Bones of the Pectoral and Upper Limb d. Bones of the Pelvic Girdle and Lower Limb 2. Surface Features of Bones 7-3 The Skeletal System Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Parietal bone Frontal bone overview of the skeleton Skull Mandible Mandible Pectoral girdle the skull Maxilla Clavicle Scapula Sternum Thoracic cage Humerus Ribs Costal cartilages Vertebral column

the vertebral column and thoracic cage Pelvis Hip bone Sacrum Ulna Radius Coccyx Carpus Metacarpal bones Phalanges the pectoral girdle and upper limb Femur Patella Fibula Tibia the pelvic girdle and lower limb Metatarsal bones Tarsus Phalanges (a) Anterior view Figure 8.1a 8-4 Overview of the Skeleton two regions of the skeleton axial skeleton forms the central supporting axis of the body skull, auditory ossicles, hyoid bone, vertebral column, and thoracic cage (ribs and sternum) appendicular skeleton includes the bones of the upper limb and pectoral girdle, and the bones of the lower limb and pelvic girdle number of bones 206 in typical adult skeleton varies with development of sesamoid bones (patella) bones that form within some tendons in response to stress varies with presence of sutural (wormian) bones in skull extra bones that develop in skull suture lines

270 bones at birth, decreases with fusion surface markings defined in Table 8.2 ridges, spines, bumps, depressions, canals, pores, slits, cavities, and articular surfaces 8-5 Axial and Appendicular Skeleton Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Parietal bone Frontal bone Skull Maxilla Mandible Mandible Pectoral girdle axial skeleton is colored tan Occipital bone Clavicle Clavicle Scapula Scapula skull, vertebrae, sternum, ribs, sacrum and hyoid Sternum Humerus Thoracic Ribs cage Costal cartilages Vertebral column Pelvis Hip bone Sacrum appendicular skeleton is colored green

Ulna Radius Coccyx Carpus Metacarpal bones Phalanges Femur Patella pectoral girdle upper extremity pelvic girdle lower extremity Fibula Tibia Metatarsal bones Tarsus Figure 8.1 Phalanges (a) Anterior view (b) Posterior view 8-6 Anatomical Features of Bones Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Lines Crest Sinuses Foramen Fovea Head Meatus Crest Trochanters

Process Condyle Spine Head Tubercle Alveolus Foramen Tuberosity (a) Skull (lateral view) Line Process Fossae Spine Epicondyles Fossae Condyles (b) Scapula (posterior view) Figure 8.2 (c) Femur (posterior view) (d) Humerus (anterior view) 8-7 The Skull skull the most complex part of the skeleton 22 bones joined together by sutures (immovable joints) 8 cranial bones surround cranial cavity which encloses the brain other cavities orbits, nasal cavity, oral (buccal) cavity, middle-, and inner ear cavities, and paranasal sinuses paranasal sinuses frontal, sphenoid, ethmoid, and maxillary lined by mucous membrane and air-filled lighten the anterior portion of the skull act as chambers that add resonance to the voice foramina holes that allow passage for nerves and blood vessels 14 facial bones support teeth, facial and jaw muscles 8-8 Major Skull Cavities Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Cranial cavity Ethmoid air cells

Frontal bone Ethmoid bone Orbit Superior Nasal conchae Middle Zygomatic bone Inferior Maxilla Maxillary sinus Vomer Nasal cavity Mandible Oral cavity Figure 8.7 8-9 Cranial Fossa Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Figure 8.9 Frontal lobe Anterior cranial fossa Temporal lobe Middle cranial fossa Cerebellum Posterior cranial fossa Posterior cranial fossa Middle cranial fossa Anterior cranial fossa (a) Superior view (b) Lateral view cranium (braincase) protects the brain and associated sense organs

swelling of the brain inside the rigid cranium may force tissue through foramen magnum resulting in death consists of two parts: the calvaria (skullcap) and the cranial base base is divided into three basins that comprise the cranial floor anterior cranial fossa holds the frontal lobe of the brain middle cranial fossa holds the temporal lobes of the brain posterior cranial fossa contains the cerebellum 8-10 Frontal Bone forms forehead and part of the roof of the cranium coronal suture posterior boundary of frontal bone Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Frontal bone Glabella Coronal suture supraorbital margin forms roof of the orbit supraorbital foramen provides passage for nerve, artery, and vein Squamous suture Supraorbital foramen Parietal bone Supraorbital margin Temporal bone Sphenoid bone Lacrimal bone Ethmoid bone Nasal bone Middle nasal concha Zygomatic bone Infraorbital foramen Vomer Inferior nasal concha Maxilla Mandible glabella smooth area above root of the nose

contains frontal sinus Mental protuberance Mental foramen Figure 8.3 8-11 Parietal Bone Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Coronal suture Frontal bone Parietal bone Temporal lines Lambdoid suture Ethmoid bone form most of cranial roof and part of its lateral walls Sphenoid bone Nasal bone Occipital bone Lacrimal bone Squamous suture Zygomaticofacial foramen Temporal bone Infraorbital foramen Zygomatic process External acoustic meatus Zygomatic bone Maxilla Mastoid process Temporal process Styloid process Mandible Mandibular condyle Mental foramen (a) Right lateral view Figure 8.4a

Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Anterior Frontal bone bordered by 4 sutures sagittal between parietal bones coronal at anterior margin lambdoid at posterior margin squamous at lateral border Coronal suture two temporal lines serve as attachment of the temporalis muscle Parietal bone Sagittal suture Sutural bone Parietal foramen Lambdoid suture Occipital bone Posterior Figure 8.6 8-12 Temporal Bone lateral wall and part of floor of cranial cavity squamous part Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Coronal suture encircled by squamous suture zygomatic process mandibular fossa Frontal bone Parietal bone Temporal lines Lambdoid suture Ethmoid bone Sphenoid bone

Nasal bone Occipital bone Lacrimal bone Squamous suture Zygomaticofacial foramen Temporal bone Infraorbital foramen Zygomatic process External acoustic meatus external auditory meatus styloid process Zygomatic bone Maxilla Mastoid process Temporal process Styloid process Mandible Mandibular condyle Mental foramen (a) Right lateral view Figure 8.4a tympanic part mastoid part mastoid process mastoiditis from ear infection mastoid notch stylomastoid foramen mastoid foramen 8-13 Petrous Portion of Temporal Bone petrous part part of cranial floor Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Diploe (spongy bone) Frontal bone

Crista galli Cribriform plate of ethmoid bone Cribriform foramina separates middle from posterior cranial fossa Sphenoid bone Optic foramen Sella turcica Foramen rotundum Foramen ovale Temporal bone Foramen spinosum Internal acoustic meatus Petrous part of temporal bone Jugular foramen Parietal bone Groove for venous sinus Foramen magnum Occipital bone Hypoglossal canal (b) Superior view of cranial floor Figure 8.5b houses middle and inner ear cavities receptors for hearing and sense of balance internal auditory meatus - opening for CN VII (vestibulocochlear nerve) carotid canal 8-14 Right Temporal Bone Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Squamous suture Squamous part Mastoid part

Zygomatic process Mandibular fossa Mastoid notch Mastoid process Styloid process External acoustic meatus Tympanic part (a) Lateral surface Squamous suture Squamous part Petrous part Zygomatic process Internal acoustic meatus Mastoid process Styloid process (b) Medial surface Figure 8.10 8-15 Occipital Bone rear and base of skull Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. foramen magnum holds spinal cord Incisive foramen Palatine process of maxilla Intermaxillary suture Zygomatic bone basilar part Palatine bone Zygomatic arch Greater palatine foramen Posterior nasal aperture skull rests on atlas at occipital condyles Medial pterygoid plate Lateral pterygoid plate

Vomer Sphenoid bone Foramen ovale Mandibular fossa Foramen spinosum Foramen lacerum Basilar part of occipital bone Carotid canal Styloid process hypoglossal canal transmits hypoglossal nerve (CN XII) supplying tongue muscles condylar canal External acoustic meatus Occipital condyle Stylomastoid foramen Mastoid process Mastoid notch Jugular foramen Foramen magnum Temporal bone Condylar canal Mastoid foramen Parietal bone Lambdoid suture Inferior nuchal line External occipital protuberance Superior nuchal line Occipital bone (a) Inferior view external occipital protuberance for nuchal ligament superior and inferior nuchal lines mark neck muscles Figure 8.5a 8-16 Sphenoid Bone Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display.

Lesser wing Dorsum sellae Greater wing Superior orbital fissure Foramen rotundum Body Foramen ovale body greater wing Lateral pterygoid plate Medial pterygoid plate Pterygoid processes (b) Posterior view Figure 8.11b Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Diploe (spongy bone) Frontal bone Cribriform plate of ethmoid bone Crista galli Cribriform foramina Sphenoid bone Optic foramen Foramen rotundum Foramen ovale Foramen spinosum Internal acoustic meatus Jugular foramen Sella turcica lesser wing optic foramen anterior clinoid processes Temporal bone Petrous part of temporal bone Parietal bone Foramen magnum Groove for venous sinus Hypoglossal canal

Occipital bone (b) Superior view of cranial floor superior orbital fissure Figure 8.5b 8-17 Sphenoid Bone Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Optic foramen Hypophyseal fossa Lesser wing Greater wing Foramen rotundum Sella turcica Anterior clinoid process Foramen ovale Foramen spinosum Dorsum sellae (a) Superior view Figure 8.11a Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Diploe (spongy bone) Frontal bone Cribriform plate of ethmoid bone Crista galli Cribriform foramina Sphenoid bone Optic foramen Foramen rotundum Foramen ovale Foramen spinosum Internal acoustic meatus Jugular foramen Sella turcica Temporal bone Petrous part of temporal bone Parietal bone Foramen magnum

Groove for venous sinus Hypoglossal canal Occipital bone foramen rotundum foramen ovale foramen lacerum posterior nasal apertures or choanae medial pterygoid plate lateral pterygoid plate sphenoid sinus Figure 8.5b (b) Superior view of cranial floor 8-18 Sphenoid Bone Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Coronal suture Frontal bone Incisive foramen Parietal bone Palatine process of maxilla Sphenoid sinus Squamous suture Frontal sinus Intermaxillary suture Zygomatic bone Crista galli Palatine bone Zygomatic arch Cribriform plate of ethmoid bone Posterior nasal aperture Perpendicular plate of ethmoid bone

Vomer Occipital bone Temporal bone Sella turcica Lambdoid suture Internal acoustic meatus Jugular foramen Hypoglossal canal Styloid process Mandibular foramen Lateral pterygoid plate Nasal bone Sphenoid bone Foramen ovale Vomer Mandibular fossa Palatine process of maxilla Styloid process Foramen spinosum Foramen lacerum Basilar part of occipital bone Carotid canal Maxilla (b) Median section Greater palatine foramen Medial pterygoid plate External acoustic meatus Occipital condyle Palatine bone Mandible Mastoid process Mastoid notch Mental spines Temporal bone Stylomastoid foramen Jugular foramen Foramen magnum

Condylar canal Mastoid foramen Parietal bone Lambdoid suture Inferior nuchal line Figure 8.4b External occipital protuberance Superior nuchal line Occipital bone (a) Inferior view Figure 8.5a sphenoid sinus 8-19 Ethmoid Bone Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Supraorbital foramen Roof of orbit Zygomatic process of frontal bone Greater wing of sphenoid bone Orbital plate of ethmoid bone Floor of orbit between the eyes contributes to medial wall of orbit lateral walls and roof of nasal cavity, and nasal septum three major portions of this porous, delicate bone

perpendicular plate forms superior two-thirds of nasal septum cribriform plate forms roof of nasal cavity crista galli attachment point for meninges cribriform (olfactory) foramina labyrinth large mass on each side of perpendicular plate ethmoid cells in the make up ethmoid sinuses orbital plate Orbital plate of frontal bone Lesser wing of sphenoid bone Optic foramen Medial wall Lacrimal bone Lateral wall of orbit Orbital surface of zygomatic bone Superior orbital fissure Frontal process of maxilla Orbital process of palatine bone Inferior orbital fissure Infraorbital foramen Orbital surface of maxilla Figure 8.14 Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Cribriform plate Cribriform

foramina Orbital plate Ethmoidal cells Perpendicular plate Figure 8.12 Crista galli Superior nasal concha Middle nasal concha 8-20 Ethmoid Bone Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. Coronal suture Parietal bone Frontal bone Crista galli Sphenoid sinus Cribriform plate Cribriform foramina Squamous suture Frontal sinus Frontal sinus Nasal bone Sella turcica Crista galli Nasal conchae: Occipital bone Temporal bone Sella turcica Lambdoid suture Internal acoustic meatus Jugular foramen Hypoglossal canal Frontal bone Cribriform plate of ethmoid bone

Superior Perpendicular plate Sphenoid sinus of ethmoid bone Inferior Nasal bone Middle Nasal cartilages Occipital bone Vomer Palatine process of maxilla Styloid process Mandibular foramen Maxilla Palatine bone Mandible Mental spines (b) Median section Sphenoid bone Anterior nasal spine Palatine bone Incisive foramen Lacrimal bone Lip Maxilla Incisor Figure 8.4b Figure 8.13 superior and middle concha perpendicular plate of nasal septum 8-21

Recently Viewed Presentations

  • John 18:21Why do you ask Me? Ask those who have heard Me what ...

    John 18:21Why do you ask Me? Ask those who have heard Me what ...

    Isa 9:6-7 ~ For unto us a Child is born, unto us a Son is given; and the government will be upon His shoulder. And His name will be called Wonderful, Counselor, Mighty God, Everlasting Father, Prince of Peace. 7...
  • Inspired and Shaped by Hundreds of Generations:

    Inspired and Shaped by Hundreds of Generations:

    E X P E R I E N C E Y O U R A M E R I C A. Inspired and Shaped by Hundreds of Generations: ... with the Trail corridor designation used as a tool for coordination...
  • Internet Worms - Ptolemy Project

    Internet Worms - Ptolemy Project

    IPID appears unrelated Appears to be a dynamic spam-blocking system Rather than just block outbound port 25: Heuristically detect spam bots and then block their messages with RST packets UVic.ca: Apparently blocking viruses One smtp server attempting to forward a...
  • Introduction

    Introduction

    The forward price for a contract is the delivery price that would be applicable to the contract if were negotiated today (i.e., it is the delivery price that would make the contract worth exactly zero)
  • Interação com Agentes Pedagógicos Animados: Um Estudo Comparativo

    Interação com Agentes Pedagógicos Animados: Um Estudo Comparativo

    Então, se um aluno rientado a performance que sempre tira uma nota boa, tirar uma nota excelente é um evento não esperado e gera satisfação com maior intensidade. O outro trabalho que também infere as emoções do aluno através de...
  • Chapter 11

    Chapter 11

    Sex & Gender
  • Black Holes: physics and astronomy

    Black Holes: physics and astronomy

    Cygnus X-1: the prototype black hole Where Cygnus X-1 is located An example of a black hole system Black hole and a red dwarf A key to black holes: hot accretion disks Present knowledge about black holes 20 confirmed black...
  • Predicting Outcomes - SharpSchool

    Predicting Outcomes - SharpSchool

    Predicting Outcomes Predicting outcomes means deciding in advance what will happen in a story, based on clues in the passage and your experience with similar situations. What I already know. + Clues in the story. = my prediction. Predicting Outcomes...