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 Skull 2 Vertebral Column 3 Associated Bones of the Skull 4 Axial Skeleton 5 Thoracic (Rib) Cage 8 Cranial Bones & 14 Facial Bones Sternum & 24 Ribs Composed of the Skull, Associated Bones of the Skull, Vertebral Column, Thoracic (Rib) Cage 6 Auditory Ossicles & Hyoid Bone 7 Cervical Vertebrae, 12 Thoracic Vertebrae, 5 Lumbar Vertebrae, Sacrum, Coccyx 1 Coronal Suture 2 Squamous Suture 3 Oral Cavity 4 Orbital Cavities 5 Cavities 6 Sutures 7 Cranial Cavity 8 Sagittal Suture 9 Palatine Suture 10 Types of Sutures 11 Nasal Cavity 12 Skull 13 Lambdoid Suture Contains 8 Cranial Bones, 14 Facial Bones, & Associated Bones: 6 Auditory Ossicles & Hyoid Bone Contains the mouth; Created by the maxilla, palatine, & mandible bones Coronal, Sagittal, Squamous, Lambdoid, Palatine, Joint between palatine bones A hollow space made by multiple bones; Cranial, Orbital, Nasal, & Oral Joints between the bones of the skull Joint between parietal and temporal bones Joint between frontal and parietal 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 Contains the nose; Created by the nasal, ethmoid, vomer, palatine, inferior nasal concha, & maxilla bones Joint between 2 parietal bones Joint between parietal and occipital bones 1 Frontal 2 Neurocranium 3 Inferior Nasal Conchae 4 Parietal 5 Ethmoid 6 Vomer 7 Anatomic Divisions of the Skull 8 Lacrimal 9 Palatine 10 Maxilla 11 Mandible 12 Zygomatic 13 Temporal 14 Sphenoid 15 Nasal 16 Occipital 17 Face Forehead (anterior cranial cavity), eyebrows (roof of the orbit) Lower jaw Paired; Medial wall of the orbit Frontal (1), Parietal (2), Temporal (2), Occipital (1), Sphenoid (1), & Ethmoid (1) Paired; Inferior-lateral walls of nasal cavity Back of head and bottom of the skull (posterior/inferior cranium) Inferior nasal septum Part of temple (lateral), part of base (inferior), back of eye Paired; top and sides (lateral) of head (lateral/superior cranial cavity) Paired; Upper jaw; Roof of oral cavity, floor and lateral walls of nasal cavity, and medial orbit Paired; Posterior roof of oral cavity (hard palate), small part of lateral nasal cavity, and medial wall of orbit Neurocranium and Face Medial wall of orbit, roof and superior-lateral walls of nasal cavity, and superior nasal septum 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) Roof of nasal cavity Paired; Cheekbones (lateral orbit) 1 Associated Bones of the Skull 2 Bones of the Ear Ossicles 3 Ear Ossicles 4 Malleus 5 Incus 6 Stapes 7 Hyoid Hammer Stirrup Anvil 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 Located within the temporal bone, amplify sound Malleus, Incus, Stapes 1 Lumbar Vertebrae 2 Sacrum 3 Lordosis 4 Coccyx 5 Special Features of Cervical Vertebrae 6 Special Features of the Thoracic Vertebrae 7 Thoracic Vertebrae 8 Parts of the Sacrum 9 Anatomic Divisions of the Vertebral Column 10 Special Features of the Lumbar Vertebrae 11 Cervical Vertebrae 12 Kyphosis Superior articular processes Auricular surfaces Sacral canal Sacral crest Sacral foramina Vertebrae of the Neck Posterior pelvis Leans poteriorly; Sacrum & Thoracic Vertebrae 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 Tailbone Heart-shaped bodies Costal facets Long spinous processes Small bodies Transverse foramina C2-C6 bifid spinous process C1 and C2 special! Leans anteriorly; Cervical and Lumbar Vertebrae Vertebrae of the thorax; Attached to the ribs Vertebrae of the lower back 1 Floating Ribs 2 Function of the Rib Cage 3 Manubrium 4 Costochondral Joints 5 True Ribs 6 Sternum 7 Sternum Components 8 False Ribs 9 Sternocostal Joints 10 Body 11 Xyphoid Process 12 Components of the Rib Cage 13 Ribs Sternum, Ribs, Costal Cartilage Bottom tab on the sternum 3; #'s 8-10; Connect to #7's costal cartilage Suprasternal/jugular notch - Attachment point for sternocleidomastoid Clavicular notches - Sternoclavicular joints Costal notch - Sternocostal joints protects enclosed organs, anchors many muscles 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) 12 on each side; 3 types: true, false, & floating Manubrium, Body, Xyphoid Process 7; #'s 1-7; Each rib has its own costal cartilage Between the sternum and costal cartilage of true ribs (1-7) Synovial joints 2; #'s 11 & 12; Have NO costal cartilage Breastbone 1 Axial Joints 2 Temporomandibular Joint 3 Atlanto-occipital Joint 4 Atlanto-axial Joint 5 Vertebrocostal Joints 6 Sternocostal Joints 7 Intervertebral Joints Temporomandibular, Atlanto-occipital, Atlanto-axial, Intervertebral, Vertebrocostal, & Sternocostal atlas + dens of axis manubrium and sternal body costal notches + costal cartilage (1-7) Superior + inferior articular processes Adjacent vertebral bodies (intervertebral disks) superior articular processes of atlas + occipital condyles mandibular fossa + condylar process T1-12 costal facets on vertebral body + head of rib T1-12 costal facets on transverse process + rib tubercle
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