Identify the origin of sympathetic nerve fibres and the location of their ganglia
Options
(a) They arise from thoraco-lumber region of spinal cord and form ganglia just beside the vertebral column
(b) They arise from thoraco-cervical region of spinal cord and form ganglia just beside the vertebral column
(c) They arise from cranio-sacral region of spinal cord and form ganglia very close to effector organ.
(d) They arise from thoraco-lumber region of spinal cord and form ganglia very close to effector organ
Correct Answer:
They arise from thoraco-lumber region of spinal cord and form ganglia just beside the vertebral column
Explanation:
Sympathatic nerves are composeed of efferent fibres derived from the thoracic and lumbar regions of the spinal cord.