AxialSkeletonkey

AxialSkeletonkey - REVIEW SHEET NAME LAB TIM E/DATE The...

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Unformatted text preview: REVIEW SHEET NAME . LAB TIM E/DATE The Axial Skeleton The Skull 1. The skull is one of the major components of the axial skeleton. Name the other two. vertebrae and bony thorax skull—protects the brain What structures do each of these component areas protect? vertebraefiprotects the spinal column bony thoraxiprotects thoracic cavity {heart & lungs) 2_ Define moire- Interlocking joints; immovable joints that connect bones of skull Mandible 3. With one exception, the skull bones are joined by sutures. Name the exception. 4. What are the four major sutures of the skull, and what bones do they connect? Sagittal—Mo parietal bones Coronal—parietals meet frontal bone Squamous—temporal meets parietal M Lambdoid—wccipital meets parietal 5. Name the eight bones composing the cranium. Fromoi Ethmoid Right temporal Left temporal Sphenoid Right parietal Left parietal Occipital .N 6. Give two possible functions of the sinuses. Lighten facial bones; act as resonance chambers for speech 7_ What is the orbit? The bony cavity containing the eyeball 8. Why can the sphenoid bone be called the keystone of the cranial floor? WW“; width of the skull m 9. Match the bone names in column B with the descriptions in column A. Column A _ Column B MIL—n.— 1. bone forming anterior cranium ethmoiti zygomaric 2. cheekbone ' frontal maxilla 3_ upper jaw hyoid "-9501 4. bony skeleton of nose lacrimal M— 5. posterior roof of mouth mandible Flirt-*3“!l 6. bone pair united by the sagittal suture maxilla “mom; 7. site of jugular foramen and carotid canal nasal M—_ 8. contains a ”saddle” that houses the pituitary gland occipital lacri'mal 9. allows tear ducts to pass palatine maxilla 10. forms most of hard palate parietal m— 11. superior and medial nasal conchae are part of this bone sphenoid M— 12. site of external auditory meatus temporal aphenaid 13. has greater and lesser wings vomer Emmi-d 14. its “holey” plate allows olfactory fibers to pass zygomatic marina??? 15. facial bone that contains a sinus frontal ! sphenoid , and ethmot'd 16. three cranial bones containing paranasal sinuses Elm—fl 17. its oval-shaped protrusions articulate with the atlas m“— 18. spinal cord passes through a large opening in this bone L.— 19. not really a skull bone mndible 20. forms the chin L— 21. inferior part of nasal septum M; flflry—fl 22. contain alveoli bearing teeth 44 Review Sheet 6 10. Using choices from column B in question 9 and from the key to the right, identify all bones and bone markings provided with leader lines in the diagram below. coronal suture sagiaal suture alveolar margin 1 WM“- ”ma coronal suture frontal foramen magnum parietal squamous Suture greater wing of Sphenoid greater wing l __ _ . of sphenoid “We“ I pill.) inferior nasal concha rem oral . - P middle nasal concha of ethnic-1d ethmoid lacrimal saglttal suture . mtddle nasal concha sq ous suture zygomaac inferior nasal concha vomer maxilla alveolar margin ‘ ‘2‘: mandible The Vertebral Column 11. Using the key terms, correctly identify the vertebral areas in the diagram. Key: body lamina pedicle spinous process superior - - articular su 1'101' articular recess Fe 11 arch transverse process vertebral arch vertebral foramen '- ' pedicfe body Review Sheet 8 45 12. The distinguishing characteristics of the vertebrae composing the vertebral column are noted below. Correctly identify each described structure or region by choosing a response from the key. Key: atlas coccyx sacrum axis lumbar vertebra thoracic vertebra cervical vertebraAypical cervical V81” more: mica! 1. vertebral type with a forked spinous process atlas 2. pivots on C2: lacks a body fliflrafl'c vertebra 3. bear facets for articulation with ribs; form part of bony thoracic cage m____— 4. forms a joint with the hip bone lumbar V81” 3651‘ a 5. vertebra with blocklike body and short stout spinous process coccyx 6. “tail bone" axis 7. articulates with the occipital condyles 410715761!" vertebra 8. five components; unfused thoracic Vfrlfbm 9. twelve components; unfused sacrum 10. five components; fused 13. Identify as specifically as possible each of the vertebrae types shown in the diagrams below. Also identify and label the folr lowing markings on each: transverse processes, spinous process, body. superior articular processes, as well as the areas pro~ vided with leaders. superior articular process transverse process transverse process inferior articular process s in vertebral foreman P J’ pfOCBSS costal demtfiscet for head of rib spinous process Thoracic Cervical 14. What kind of tissue makes up the intervertebral discs? “WWW“? 15_ What is a herniated disc? A slipped disc; protruding cartilage from vertebra What problems might it cause? Pam and ”“5“” __—___—___—__.—_—_—————————— 46 Review Sheet 8 16. On this illustration of an articulated vertebral column, identify each suucture provided with a leader line by using the key terms. Key: atlas atlas ‘ axis axis a disc two thoracic vertebrae two lumbar vertebrae sacrum thoracic vertebrae lumbar vertebrae sacrum The Bony Thorax 17. The major components of the thorax (excluding the vertebral column) are the sternum and the ribs 18. What is the general shape of the thoraoic cage? MEL—m Review Sheet 8 47 19. Using the terms at the right, identify the regions and landmarks of the bony thorax. a. bod},r b. costal cartilage c. false ribs d. floating ribs e. rnanubn'um f f. sternum g. true ribs h. xiphoid process L1 venebra 48 Review Sheet 8 ...
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