Regarding spinal nerves, the correct description is A Once formed, they usually give off branches while still within the vertebral canal B Each is very different so that there is no typical pattern ? The eighth pair of thoracic nerves exits intervertebral foramen between thoracic vertebrae T8 and 19 D The first pair (cervical 1) exits intervertebra foramen between the first and second cervical vertebrae E All spinal nerve roots are equal in length

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