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