The axial skeleton contains approximately __ bones, which include bones of the ___?

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The axial skeleton contains approximately __ bones, which include bones of the ___?. 126/pelvic girdle and limb bones 80/skull, vertebral column, and thoracic cage 80/pelvic girdle and pectoral girdle 2 and 3. Bones of the axial skeleton have all of the following functions except _____?. - PowerPoint PPT Presentation

Transcript of The axial skeleton contains approximately __ bones, which include bones of the ___?

  • The axial skeleton contains approximately __ bones, which include bones of the ___?126/pelvic girdle and limb bones80/skull, vertebral column, and thoracic cage80/pelvic girdle and pectoral girdle2 and 3

  • Bones of the axial skeleton have all of the following functions except _____?Protect brain and spinal cordProvide surface area for attachment of respiratory musclesContain medullary cavities with yellow bone marrowProtect organs of the ventral body cavity

  • In which bone is the foramen magnum located?Sphenoid Occipital boneEthmoid Parietal bone

  • Toms suffers a blow to the skull that fractures the right superior lateral surface of his cranium. Which bone is fractured?Frontal boneRight temporal boneRight parietal boneEthmoid

  • Which bone contains the depression called the sella turcica? What is located in this depression?Sphenoid bone; pituitary glandEthmoid; olfactory epitheliumTemporal bone; inner earLacrimal bone; tear apparatus

  • Which of these bones are paired bones of the face?Temporal bonesInferior nasal conchaeParietal bones1 and 3

  • Which suture is not paired with the bones it separates?Lambdoidal/occipital and parietal bonesSquamous/temporal bone and sphenoid boneCoronal/frontal from two parietal bonesSagittal/parietal bones

  • Which bone contains the mental foramen and what structures use that passageway?Parietal/noneOccipital/hypoglossal nervesTemporal/internal carotid arteryMandible/mental nerves

  • The sphenoid bone contains all of the following openings except?Optic canalsSuperior orbital fissuresExternal auditory meatusForamen ovale

  • The significance of the petrous part of the temporal bone is that it serves as ___?The housing for the auditory ossiclesA passageway for the jugular veinSites of attachment for muscles that move the mandibleThe housing for the temporal sinuses

  • Several openings occur within the temporal bone for the passage of structures. Which of the following is correct?Foramen magnum/medulla oblongata and hypoglossal canals/hypoglossal nerves Hypoglossal canals/hypoglossal nerve and jugular foramen/glossopharyngeal, vagus and accessory nerves Foramen lacerum/small arteries and jugular foramen/jugular veinCarotid canal/internal carotid artery and stylomastoid foramen/facial nerve

  • Which of the nasal conchae are part of the ethmoid bone?Superior, middle, and inferior nasal conchaeLateral and medial nasal conchaeSuperior and middle nasal conchaeNone of these is correct

  • Paranasal sinuses serve what purposes?Lightening the skull bones and providing an extensive area of mucous epithelium Pulling mucus back toward the throat Providing the superior and posterior boundary of the nasal complexProviding the lateral and inferior boundaries of the orbital complex

  • Which of these bones form parts of the orbital complex and also contain paranasal sinuses?Sphenoid, frontal, maxillary and lacrimal bones Zygomatic, lacrimal, frontal and palatine bonesPalatine, temporal, ethmoid and zygomatic bonesMaxillary, sphenoid, frontal, and ethmoid bones

  • Which fontanelles disappear within a month or two after birth?Occipital, sphenoid, and mastoidMetopic, frontal, and sagittalAnterior, parietal, and occipitalSphenoid, lambdoid, and mastoid

  • What is a consequence of early closure of one or more sutures?Distorted skull shapeBrain stops growingEarly deathParents cannot see if their infant is dehydrated

  • Secondary curves of the spine are also called ______? The cervical curve ____ and the lumbar curve ______?Accommodation curves/is present at birth/accommodates abdominal visceraCompensation curves/helps balance weight of head/balances weight over lower limbsCompensation curves/decreases flexibility/allows for development of larger vertebraeNone of these is correct

  • Which structures form the vertebral arch of vertebrae?Superior and inferior articular processesPedicles and laminaeTransverse and spinous processesVertebral bodies and transverse foramina

  • When you run your finger along a persons spine, what part of the vertebrae are you feeling just beneath the skin?Superior articular processesPedicles Transverse processesSpinous processes

  • Why does the vertebral column of an adult have fewer vertebrae than that of a newborn?Vertebrae are absorbed as adult stature is reached.Newborns require more support in the cervical region.The sacrum and coccyx fuse post-puberty.Vertebrae are formed that later become ribs.

  • Joe suffered a hairline fracture at the base of the dens. Which bone is fractured, and where is it located?Second cervical vertebra; posterior neckFirst cervical vertebra; posterior neckOccipital bone; posterior base of skullSacrum; posterior pelvis

  • What feature distinguishes cervical vertebrae 26 from a thoracic or lumbar vertebra? Bifid spinous processesSpinous processes point inferiorlyTransverse foramina1 and 3 are correct.

  • Why are the bodies of the lumbar vertebrae so large?They develop first and therefore have longer to grow.To provide more flexibility.To distribute weight over a larger area.To provide greater protection to the lumbar spinal nerves.

  • How could you distinguish between true ribs and false ribs?True ribs attach directly to the sternum by their own costal cartilage.True ribs are entirely bony.False ribs are not part of the thoracic cage.True ribs are attached only to the sternum.

  • Improper administration of cardiopulmonary resuscitation (CPR) can result in a fracture of which bone(s)?Cervical vertebra and ribsThoracic vertebra and ribsSternum and thoracic vertebraSternum and ribs

  • What are the main differences between vertebrosternal and vertebrochondral ribs?Vertebrosternal ribs attach to the sternum by their own costal cartilages.Vertebrochondral ribs costal cartilage fuse and merge with cartilages from rib 7Vertebrosternal ribs increase in curvature and length from 17.All of the above are true.

    Answer: 2*Answer: 3*Answer: 2*Answer: 3*Answer:1*Answer: 2*Answer: 2*Answer: 4*Answer: 3*Answer: 1*Answer: 4*Answer: 3* Answer: 1*Answer: 4*Answer: 1*Answer: 1*Answer: 2*Answer: 3*Answer: 4*Answer: 3*Answer: 1*Answer: 4*Answer: 3*Answer: 1*Answer: 4*Answer: 4*