Relier Pairs Unit 2 Part 2: Axial SkeletonVersion en ligne Information on the axial portion of the skeleton and its features par Abigail Scott 1 Thoracic (Rib) Cage 2 Skull 3 Axial Skeleton 4 Vertebral Column 5 Associated Bones of the Skull 8 Cranial Bones & 14 Facial Bones 7 Cervical Vertebrae, 12 Thoracic Vertebrae, 5 Lumbar Vertebrae, Sacrum, Coccyx Sternum & 24 Ribs 6 Auditory Ossicles & Hyoid Bone Composed of the Skull, Associated Bones of the Skull, Vertebral Column, Thoracic (Rib) Cage 1 Palatine Suture 2 Squamous Suture 3 Nasal Cavity 4 Types of Sutures 5 Sagittal Suture 6 Skull 7 Orbital Cavities 8 Coronal Suture 9 Cavities 10 Sutures 11 Lambdoid Suture 12 Cranial Cavity 13 Oral Cavity A hollow space made by multiple bones; Cranial, Orbital, Nasal, & Oral Contains the nose; Created by the nasal, ethmoid, vomer, palatine, inferior nasal concha, & maxilla bones Contains 8 Cranial Bones, 14 Facial Bones, & Associated Bones: 6 Auditory Ossicles & Hyoid Bone Contains the mouth; Created by the maxilla, palatine, & mandible bones Joint between parietal and temporal bones Joint between palatine bones Contains the eyes; Created by the frontal, sphenoid, ethmoid, zygomatic, maxilla, lacrimal, & palatine bones Contains the brain; Created by frontal, parietal, temporal, occipital, ethmoid, & sphenoid bones Coronal, Sagittal, Squamous, Lambdoid, Palatine, Joint between frontal and parietal bones Joint between parietal and occipital bones Joint between 2 parietal bones Joints between the bones of the skull 1 Occipital 2 Mandible 3 Temporal 4 Sphenoid 5 Palatine 6 Face 7 Frontal 8 Lacrimal 9 Vomer 10 Ethmoid 11 Inferior Nasal Conchae 12 Neurocranium 13 Parietal 14 Maxilla 15 Nasal 16 Anatomic Divisions of the Skull 17 Zygomatic Paired; Posterior roof of oral cavity (hard palate), small part of lateral nasal cavity, and medial wall of orbit Paired; top and sides (lateral) of head (lateral/superior cranial cavity) Neurocranium and Face Nasal (2), Lacrimal (2), Zygomatic (2), Maxilla (2), Mandible (1), Vomer (1), Palatine (2), Inferior Nasal Conchae (2) Paired; Temple & ear (lateral), also base (inferior) Paired; Upper jaw; Roof of oral cavity, floor and lateral walls of nasal cavity, and medial orbit Lower jaw Medial wall of orbit, roof and superior-lateral walls of nasal cavity, and superior nasal septum Paired; Medial wall of the orbit Part of temple (lateral), part of base (inferior), back of eye Roof of nasal cavity Paired; Cheekbones (lateral orbit) Paired; Inferior-lateral walls of nasal cavity Forehead (anterior cranial cavity), eyebrows (roof of the orbit) Back of head and bottom of the skull (posterior/inferior cranium) Frontal (1), Parietal (2), Temporal (2), Occipital (1), Sphenoid (1), & Ethmoid (1) Inferior nasal septum 1 Hyoid 2 Bones of the Ear Ossicles 3 Stapes 4 Ear Ossicles 5 Malleus 6 Incus 7 Associated Bones of the Skull Stirrup Malleus, Incus, Stapes slender, curved bone in the throat, does NOT articulate with any other bone – held in place by muscles & ligaments; Assists with swallowing Ear Ossicles & Hyoid Hammer Located within the temporal bone, amplify sound Anvil 1 Thoracic Vertebrae 2 Anatomic Divisions of the Vertebral Column 3 Kyphosis 4 Special Features of Cervical Vertebrae 5 Lordosis 6 Lumbar Vertebrae 7 Sacrum 8 Special Features of the Lumbar Vertebrae 9 Special Features of the Thoracic Vertebrae 10 Parts of the Sacrum 11 Coccyx 12 Cervical Vertebrae Tailbone Posterior pelvis Superior articular processes Auricular surfaces Sacral canal Sacral crest Sacral foramina Cervical Vertebrae (7), Thoracic Vertebrae (12), Lumbar Vertebrae (5), Sacrum, Coccyx Very thick bodies Lock together with inwardly facing superior & inferior processes for max support Thick process for attachment of back muscles Vertebrae of the Neck Vertebrae of the thorax; Attached to the ribs Small bodies Transverse foramina C2-C6 bifid spinous process C1 and C2 special! Leans poteriorly; Sacrum & Thoracic Vertebrae Leans anteriorly; Cervical and Lumbar Vertebrae Vertebrae of the lower back Heart-shaped bodies Costal facets Long spinous processes 1 Sternocostal Joints 2 Sternum 3 Sternum Components 4 Body 5 Components of the Rib Cage 6 Function of the Rib Cage 7 Costochondral Joints 8 Ribs 9 Manubrium 10 False Ribs 11 Xyphoid Process 12 True Ribs 13 Floating Ribs Majority of the sternum; 6 costal notches that create joints with costal cartilage and ribs Sternum, Ribs, Costal Cartilage Between the costal cartilage and bone of the true (1-7) and false ribs (8-10) Cartilaginous Joints (Synchondroses) protects enclosed organs, anchors many muscles Between the sternum and costal cartilage of true ribs (1-7) Synovial joints 12 on each side; 3 types: true, false, & floating 7; #'s 1-7; Each rib has its own costal cartilage Manubrium, Body, Xyphoid Process Suprasternal/jugular notch - Attachment point for sternocleidomastoid Clavicular notches - Sternoclavicular joints Costal notch - Sternocostal joints Bottom tab on the sternum 2; #'s 11 & 12; Have NO costal cartilage 3; #'s 8-10; Connect to #7's costal cartilage Breastbone 1 Axial Joints 2 Sternocostal Joints 3 Atlanto-occipital Joint 4 Temporomandibular Joint 5 Intervertebral Joints 6 Atlanto-axial Joint 7 Vertebrocostal Joints Temporomandibular, Atlanto-occipital, Atlanto-axial, Intervertebral, Vertebrocostal, & Sternocostal manubrium and sternal body costal notches + costal cartilage (1-7) atlas + dens of axis Superior + inferior articular processes Adjacent vertebral bodies (intervertebral disks) T1-12 costal facets on vertebral body + head of rib T1-12 costal facets on transverse process + rib tubercle superior articular processes of atlas + occipital condyles mandibular fossa + condylar process
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