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