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