外科急诊创伤之脊椎损伤.ppt
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Posterior Longitudinal
Poster surface of vertebral bodies in spinal canal Prevents hyperflexion
Spinal Anatomy and Physiology
Divisions of the Vertebral Column
Spinal Anatomy and Physiology
Vertebral Column
Components of Vertebrae
Spinous Process
Posterior prominence on vertebrae
Intervertebral Disks
Cartilagenous pad between vertebrae Serves as shock absorber
Laminae
Posterior bones of vertebrae that make up foramen
Transverse Process
Bilateral projections from vertebrae Muscle attachment and articulation location with ribs
(contBaidu Nhomakorabeanued)
Spinal Anatomy and Physiology
Vertebral Column
Vertebral Ligaments
Anterior Longitudinal
Anterior surface of vertebral bodies Provides major stability of the spinal column Resists hyperextension
Vertebral Body
Major weight-bearing component Anterior to other vertebrae components
Spinal Anatomy and Physiology
Vertebral Column
Size of Vertebrae
Spinal Cord Injuries
L. Barnes, BS, CCEMT-P, NREMT-P
“Among all neurologic disorders, the cost to society of automotive SCI is exceeded only by the cost of mental retardation.”
C-1 & C-2
No vertebral body Support head Allow for turning of head
Vertebral body size increase the more inferior they become
Lumbar spine has strongest and largest
C-2 (Axis)
Odontoid Process (Dens)
Projects upward Provides pivot point so head can rotate
C-7
Prominent spinous process (vertebra prominens)
Spinal Anatomy and Physiology
Bear weight of the body
Sacral & Coccyx vertebrae are fused
No vertebral body
Spinal Anatomy and Physiology
Vertebral Column
Components of Vertebrae
Spinal Canal
Cervical Spine
7 vertebrae Sole support for head
Head weighs 16-22 pounds
C-1 (Atlas)
Supports Head Securely affixed to the occiput Permits nodding
Divisions of the Vertebral Column
Thoracic Spine
12 vertebrae 1st rib articulates with T-1
Attaches to transverse process and vertebral body
Next nine ribs attach to the inferior and superior portion of adjacent vertebral bodies
National Institutes of Health
Spinal Anatomy and Physiology
Vertebral Column
33 bones comprise the spine Function
Skeletal support structure Major portion of axial skeleton Protective container for spinal cord
Limits rib movement and provides increased rigidity
Larger and stronger than cervical spine
Larger muscles help to ensure that the body stays erect Supports movement of the thoracic cage during respirations
Opening in the vertebrae that the spinal cord passes through
Pedicles
Thick, bony structures that connect the vertebral body to the spinous and transverse processes
Poster surface of vertebral bodies in spinal canal Prevents hyperflexion
Spinal Anatomy and Physiology
Divisions of the Vertebral Column
Spinal Anatomy and Physiology
Vertebral Column
Components of Vertebrae
Spinous Process
Posterior prominence on vertebrae
Intervertebral Disks
Cartilagenous pad between vertebrae Serves as shock absorber
Laminae
Posterior bones of vertebrae that make up foramen
Transverse Process
Bilateral projections from vertebrae Muscle attachment and articulation location with ribs
(contBaidu Nhomakorabeanued)
Spinal Anatomy and Physiology
Vertebral Column
Vertebral Ligaments
Anterior Longitudinal
Anterior surface of vertebral bodies Provides major stability of the spinal column Resists hyperextension
Vertebral Body
Major weight-bearing component Anterior to other vertebrae components
Spinal Anatomy and Physiology
Vertebral Column
Size of Vertebrae
Spinal Cord Injuries
L. Barnes, BS, CCEMT-P, NREMT-P
“Among all neurologic disorders, the cost to society of automotive SCI is exceeded only by the cost of mental retardation.”
C-1 & C-2
No vertebral body Support head Allow for turning of head
Vertebral body size increase the more inferior they become
Lumbar spine has strongest and largest
C-2 (Axis)
Odontoid Process (Dens)
Projects upward Provides pivot point so head can rotate
C-7
Prominent spinous process (vertebra prominens)
Spinal Anatomy and Physiology
Bear weight of the body
Sacral & Coccyx vertebrae are fused
No vertebral body
Spinal Anatomy and Physiology
Vertebral Column
Components of Vertebrae
Spinal Canal
Cervical Spine
7 vertebrae Sole support for head
Head weighs 16-22 pounds
C-1 (Atlas)
Supports Head Securely affixed to the occiput Permits nodding
Divisions of the Vertebral Column
Thoracic Spine
12 vertebrae 1st rib articulates with T-1
Attaches to transverse process and vertebral body
Next nine ribs attach to the inferior and superior portion of adjacent vertebral bodies
National Institutes of Health
Spinal Anatomy and Physiology
Vertebral Column
33 bones comprise the spine Function
Skeletal support structure Major portion of axial skeleton Protective container for spinal cord
Limits rib movement and provides increased rigidity
Larger and stronger than cervical spine
Larger muscles help to ensure that the body stays erect Supports movement of the thoracic cage during respirations
Opening in the vertebrae that the spinal cord passes through
Pedicles
Thick, bony structures that connect the vertebral body to the spinous and transverse processes