image of Neurology
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The reptilian nervous system is similar to the mammalian and avian systems, there are some differences which complicate the assessment of neurological function, including the ectothermic nature of the class Reptilia. This chapter covers relevant anatomy and physiology, clinical evaluation including diagnostic imaging and a wide range of diseases.

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21.2 Evaluation of the panniculus reflex in a lizard. (Courtesy of Paul Raiti)
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21.3 Elicitation of the limb withdrawal reflex is used to assess spinal cord segments in the lower back. The reflex was absent in this spiny-tailed lizard with hindlimb paralysis. A more vigorous noxious stimulus applied to the toes revealed an absence of deep pain, indicating serious damage to the spinal cord. (Courtesy of Paul Raiti)
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21.5 Beaded lizard with hindlimb paresis and kyphosis and scoliosis of the spine (dorsoventral view).
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21.6 Beaded lizard with hindlimb paresis and kyphosis and scoliosis of the spine (lateral view). The head is to the right.
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21.8 Boa constrictor showing ataxia and loss of the righting reflex with inclusion body disease infection.
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21.9 Bearded dragon with systemic infection with episodic collapse, weakness and tremors.
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21.10 Aural abscess in a spur-thighed tortoise showing signs of peripheral vestibular disease.
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21.11 Green iguana showing severe cachexia, collapse, loss of righting reflex and tremors due to anamorph of (CANV) infection and renal failure.
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21.12 Gravid green iguana collapsed with flaccid paralysis due to hypocalcaemia.
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21.13 Gravid green iguana dorsoventral radiograph showing extensive demineralization of the skeleton and pathological fractures associated with nutritional hyperparathyroidism.
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21.14 Neurofibroma on the tail of a Berber skink.
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21.15 Green tree python with spinal lesions showing loss of righting reflex caudal to the lesion.

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