Lab 4 (Histology and Axial)(1).doc - BONE HISTOLOGY AND...

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BONE HISTOLOGY AND AXIAL SKELETONNOTE:a series of films that will help you learn the bones can be found at the urls listed in Blackboard.STRUCTURE OF A LONG BONEBe able to identify the following on a long bone:Periosteum, diaphysis, epiphysis, articular cartilage, epiphyseal line/plate, spongy bone, compact bone, endosteumSKELETON, SAM, BONE BOXES, EXPLODED SKULL, SKULL, FETAL SKULL:SKULL/EXPLODED SKULLYou must know all of these structures/functions/terms and be able to identify them on the Lab PracticalNumbers inredcan be found onSAM (SkeletonwithArticulations(joints) andMuscleorigins/insertions).Make sure tofind the structures listed on each individual bone(s) on the Exploded Skull.Cranial Cavity:The internal surface of the base of the skull consists of threecranial fossae, the anterior, middle, andposterior. They increase in size and depth from anterior to posterior. Thelesser wing of the sphenoid bone separates theanterior and middle fossae, and the middle and posterior fossae are separated bypetrous part of the temporal bone.Anterior cranial fossaMiddle cranial fossaPosterior cranial fossaBones of the CraniumAssociated bones/structuresOccipital20Parietal (2)78Frontal83orbitTemporal (2)58Auditory ossicles (NOTE:see Ear Model and Human Ossicles)Sphenoid37orbitEthmoid90orbitBones of the FaceMaxilla (2)97orbitPalatine (2)106orbitNasal (2)95Inferior nasal conchae (2)93Zygomatic (2)108orbitLacrimal (2)94orbitVomer96Mandible114Hyoid139SuturesCoronal, sagittal, lambdoid, squamosalMedian palatine (cleft palate), intermaxillary (hare lip)Pterion:point where the frontal, temporal, parietal, and sphenoidal bones join (coronal, squamous, and sphenoparietalsutures meet)Frontal bone:forehead; anterior portion of cranium, superior portion of orbit83,frontal sinusSupraorbital foramen (CN V1, opthalmic branch (supraorbital portion)), supraorbital margin, superciliary arch, glabella(between eyebrows)84Parietal bone (2):sides and roof of cranial cavity78Temporal lines (attachment for temporalis muscle, superior and inferior80), parietal eminence (point where ossificationbegan)Temporal bone (2)58Mastoid process (mastoid sinusesand sternocleidomastoid m.)60, petrous portion (middle and inner ear; ossicles)59,internal acoustic meatus (CN VIII)71, external acoustic meatus74, zygomatic process (zygomatic arch; masseter m. origin)75, styloid process72, carotid canal (internal carotid a.), foramen lacerum (internal carotid a., greater petrosal n. (runs withCN VII))8, stylomastoid foramen (CN VII)73, mandibular fossa76: articulates w/ condylar process of mandible:temperomandibular joint,temporal squama, zygomatic process75
Occipital bone (1):posterior portion and base of cranium20Foramen magnum (spinal cord)21, external occipital protuberance (ligamentum nuchae attachment)29, external occipitalcrest, nuchal lines (highest30, superior31, inferior32

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Term
Fall
Professor
Debban

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