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Spine
Cervical & Thoracic Spine
| Question | Answer |
|---|---|
| How many bones are found in the cervical spine? | 7 |
| How many bones are found in the Thoracic spine? | 12 |
| How many bones are found in the Lumbar spine? | 5 |
| How many bones are found in the Sacrum? | 1 |
| How many bones are found in the Coccyx? | 1 |
| Total number of bones in the normal adult spine? | 26 |
| what are the two primary or posterior convex curves seen in the vertebral column? | Sacral & Thoracic |
| Which two portions of the vertebral column are classified as secondary or compensatory curves? | Cervical & Lumbar |
| Which portion(s) or the vertebra have a convex curve? | Thoracic spine & Sacrum |
| Which portion(s) of the vertebra have a concave curve? | Cervical Spine & Lumbar Spine |
| Which aspects of the vertebral column are referred to as a secondary curved? | Cervical & Lumbar spine |
| Which aspects of the vertebral column are referred to as a primary curve? | Thoracic Spine & Sacrum |
| Which curve develops as a child learns to hold it's head erect? | Cervical |
| Another name for an abnormal, or exaggerated "Sway Back" lumbar cuvature | Lordosis |
| Another name for an abnormal lateral curvature seen in the thoracolumbar spine | Scoliosis |
| What are the two main parts of a typical vertebra? | Body & Vertebral arch |
| What is the name of the two bony aspects of the vertebral arch that extend posteriorly from each pedicale to join at the midline? | Lamina |
| The two small notches on the superior and inferior aspects of the pedicles create the... | Intervertebral Foramina |
| The opening, or passageway, for the spinal cord... | Vertebral canal |
| The spinal cord begins at the.... | Medula Oblongata |
| The spinal cord ends at.... | Lower border of L1 |
| What is the name of the tapered ending of the spinal cord? | Conus Medullaris |
| Which structures pass through the intervertebral foramina? | Spinal nerves & Blood Vessels |
| What is the name of the joint found between the superior and inferior articular processes? | Zygapophyseal Joint |
| True or False: Only T1,T11 and T12 have full facets for articulation with ribs. | TRUE |
| The outer aspect of the intervertebral disk | Annulus Fibrosus |
| The inner aspect of the intervertebral disk | Nucleus Pulposus |
| Another name for C1 | Atlas |
| Another name for C2 | Axis |
| Another name for C7 | Vertebral prominens |
| The 3 features that make the cervical spine unique | Transverse Foramina, Bifid Spinous process & overlapping of the vertebral bodies |
| What is the short column of bone found between the superior and articular processes in a typical cervical vertebra? | Articular Pillar |
| What is the short column of bone found between the superior and articular processes in the C1 vertebra? | Lateral Mass |
| What is the angle of the zygapophyseal joints for the 2nd-7th vertebra to the midsagittal plane? | 90 degrees |
| What is the angle of zygapophyseal joints of the thoracic vertebra to the midsagittal plane? | 70-75 degrees |
| What is the name of the joint found between the superior articular processes of C1 and the occipital condyles of the skull? | Atlanto-occipital articulation |
| What is the name of the modified body of C2? | Dens or Odontoid process |
| What is the unique feature of all thoracic vertebra that distinguishes them from other vertebra? | Presence of faucets for articulation |
| Which specific thoracic vertebra are classified as typical thoracic vertebra? | T5 to T8 |
| At what level is the topographical landmark referred to as the Gonion located" | C3 |
| At what level is the Xiphoid Process located? | T10 |
| At what level is the Thyroid Cartilage located? | C4-C5 |
| At what level is the jugular notch located? | T2-3 |
| At what level is the sternal angle located? | T4-5 |
| At what level is the mastiod tip located? | C1 |
| At what level is the vertebral prominens located? | C7-T1 |
| Which two landmarks must be aligned for an AP "open mouth" projections? | Lower margin of the upper incisors & base of skull |
| What is the purpose of the 15-20 angle for the AP axial projection of the cervical spine? | open intervertebral disks spaces |
| What are two important benefits of an SID longer than 40-44" for the lateral cervical spine projection? | Makes up for increased OID & reduces imposition of shoulders at C7 |
| What central ray angulation must be used with a posterior oblique projection of the cervical spine? | 15 degrees cephalic |
| Which foramina are demonstrated with a left posterior oblique position(LPO) or the cervical spine? | Right intervertebral foramina |
| Which foramina are demonstrated with a left anterior oblique (LAO) postion of the cervical spine? | Left intervertebral foramina |
| In addition to extending the chin, which additional postioning technique can be performed to ensure that the mandible is not superimposed over the upper cervical vertebra for the oblique projections? | Rotate skull to almost lateral |
| What is the recommended SID for a lateral projection of the C spine? | 60-72" |
| What is the reccomended respiration technique for the lateral C spine? | Expiration |
| What is the proper name of the method performing the cervicothoracic (swimmer's Lateral) projection? | Twining Method |
| Where should the central ray be placed for a cervicothoracic (swimmer's lateral) projection? | T1-1" above the jugular notch |
| Which region of the spine must be demonstrated with the swimmer's projection? | C4-T3 |
| Which projections are considered a functional study of the cervical spine? | Hyperextension and Hyperflexion lateral positions |
| Which AP projection of the cervical spine demonstrates the entire upper cervical spine with one single projection? | Ottonello method |
| What is the purpose of using a breathing technique for a lateral projection of the thoracic spine? | Obscure detail of thoracic vertebra & blur out lung and rib markings |
| What structure is best demonstrated with the AP axial vertebral arch projection? | Articular Pillar (lateral masses) of cervical spine |
| What central ray angle must be used with the AP Axial-vertebral arch projection? | 20-30 degrees caudad |
| Which skull positioning line is aligned perpendicular to the IR for a PA (Judd) projection for the odontoid process? | Mentomeatal line (MML) |
| How much rotaion of the body is required for an oblique postion of the thoracic spine from a true lateral position? | 20 degrees from lateral |
| Which zygapophyseal joints are demonstrated in a right anterior oblique (RAO) projection of the thoracic spine? | Right |
| Which Zygapophyseal joints are best demonstrated with LPO postion of the thoracic spine? | Right |
| How many segments make up the sacrum in the neonate? | 5 |
| What is the name of an abnormal or exaggerated thoracic spinal curvature with increased convexity? | Kyposis |
| What is angle of the intervertebral foramina for the cervical spine to the midsagittal plane? | 45 degrees |
| Which ligament holds the dens against the anterior arch of C1? | Transverse Atlantal Ligament |
| What is the name of the large joint space between C1 and C2? | Zygapophyseal joint |
| What is the name of the 2 partial facets found on the thoracic vertebra? | Demi Facets |
| Which thoracic vertebr do not possess a facet for the costotransverse joint? | T11 & T12 |
| Which postion of the thoracic spine best demonstrates the intervertebral foramina? | Lateral |
| Which position of the cervical spine best demonstrates the zygapophyseal joints between C3-C7? | Lateral |
| Which specific joint spaces are visualized with a left anterior oblique (LAO) projection of the thoracic spine? | Left Zygopaphyseal joint |
| Which two things can be done to minimize the effects of scatter radiation on lateral projections of the thoracic and lumbar spine? | Lead mat behind patient & close side collimation |
| Which projection best demonstrates the zygapophyseal joints between C1 & C2? | AP open mouth |
| What is the central ray angulation for an AP axial projection of the cervical spine? | 15-20 degrees cephalic |
| What is the central ray angulation for an anterior oblique projection of the cervical spine? | 15 degrees caudal |
| What is the central ray angulation for a posterior oblique projection of the cervical spine? | 15 degrees cephalic |
| Which projection of the cervical spine demonstrates the left intervertebral foramen? | Left Anterior oblique (LAO) |
| In addition to using a long SID, what are two postioning maneuvers you can use to lower the shoulders enough to visualize C7 for a lateral projection of the cervical spine? | hold 5-10 lbs in each hand or suspend respiration on expiration |
| What are the 2 projections that place the dens in the center of the foramen magnum? | PA Judd method & AP Fuchs Method |
| Which cervical vertebra may demonstrate a "cervical rib"? | C7 |