Science Quiz / Unit 1 - Back

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Can you name the Clincical Correlations of the Back?

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Back Unit 1
annulus fibrosis is derived from what portion of the paraaxial mesoderm?
Occurs when blood supply is cut off for an extend period of time
somites differentiate into?
Protrusion of meninges through the vertebral arch
Nucleus pulposus is derived from what embryonic layer
Which vertebra have costal facets
Defective Closure of the Vertebral Arch (bony defect only)
Conical End of Spinal Cord
How many Spinal Nerves?
preganglionic sympathetic and parasympathetic nerves are derived from?
Connects the lamina and helps maintains upright posture
Neural tube and notochord are formed from what para-axial mesodermal layer
How many vertebral bodies?
Severe hyperextension of the neck
Dorsal root ganglia is derived from?
Protrusion of spinal cord and meninges
Characterized by a pain radiating from the back to the buttock and to the lower limb
Outer meningeal layer
cervical and lumbar (curvature)
Brain and spinal cord are derived from which specific embryonic precursor?
An accentuated lateral curvature of the spine. Always abnormal.
presympathetic preganglionic cell bodies are located in lateral horns at which level?
2nd vertebra
Arachnoid Mater extends to what level of the spinal cord
One caudal half of a sclerotome fuses with one half of the cranial sclerotome to form what?
Back Unit 1
Caudal anesthesia or an epidural anesthethetic is injected through what hiatus?
Foramen through which spinal nerves pass
myotomes differentiate into?
Triangle formed by illiac crest, the external oblique, and latissumus dorsi
abnormally Increased thoracic curvature
Deep Back Muscles innervated by dorsal primary rami are formed from what embryonic layer?
Protrusion of the nucleus pulposus
Surgical removal of the spinous processes and their supporting lamina
Middle Meningeal layer
Name triangle bordered by latissimus dorsi, medial border of the scapula, and lateral bordertrapezius
sympathetic preganglionic cell bodies are located in lateral horns at which level?
throacic and sacral (curvature)
Back muscles innervated by ventral primary rami are formed from what germ layer?
Contain Somatic Sensory and Autonomic Sensory Cell Bodies
Abnormally increased extension of the lumbar region of the spine.
Para-axial mesoderm differeniates into ?
Ligament that hold the spinal cord in place
Disease characterized by the destruction of myelin in the spinal cord and the brain
what folds to form the neural tube?
Spinal tap is performed in what space?
1st vertebra
Inflammation of meninges caused by bacterial or viral infection
Conus Medullaris usually occurs at what level?
Inner Meningeal Layer

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