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