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