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