Spinal Localization Flashcards
What is the vertebral anatomy of dogs and cats?
7C, 13T, 7L, 3S
Which vertebrae are fused in dogs and cats?
Sacral vertebrae
What are spinal cord nerve segments named by?
According to where the spinal nerve exits, not where the neurons live
How many cervical spinal cord segments and nerves are there?
8 (vs only 7 vertebrae)
Does the spinal cord or vertebrae end first?
Spinal cord
Spinal cord segments are located _____to the vertebrae of the same name
Cranial
Axons in the white matter
Upper motor neurons
Peripheral nerves to muscle
Lower motor neurons
Loss of proprioception and voluntary movements are assoc. w/disease in which motor neuron segment?
Upper
How does an UMN disease affect the LMN system?
Loss of “descending inhibition” = hypertonia/hyperreflexia
Proprioceptive deficits, no voluntary motor control, hypotonia and hyporeflexia are assoc. w/disease in which motor neuron segment?
Lower
Which spinal cord segment has white matter tracts to all 4 limbs?
C1-C5
Which spinal cord segment contains the cervical intumescence and has white matter tracts to the back limbs?
C6-T2
Which spinal cord segment has white matter tracts to the back limbs only?
T3-L3
Which spinal cord segment contains the lumbar intumescence?
L4-S1
What are intumescences?
Location where LMN cell bodies to a limb live