The sympathetic nerves in mammals arise from:
Correct answer: C. Thoracolumbar nerves
- A. Sacral nerves
- B. 3rd, 7th, 9th and 10th cranial nerves
- C. Thoracolumbar nerves
- D. Cervical nerves
Explanation
The sympathetic nervous system forms a part of autonomic nervous system that consists of nerves which connect the visceral receptors and effectors with the central nervous system through the cranial and spinal nerves. Sympathetic nerves arise from thoracolumbar nerves.
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About Kingdom Animalia
Animals are multicellular, heterotrophic eukaryotes whose cells lack cell walls and chloroplasts, with specialised tissues in most groups. Coverage includes body symmetry, tissue layers, coelom, segmentation and levels of organisation, plus major phyla such as Porifera, Cnidaria, Platyhelminthes, Annelida, Arthropoda, Mollusca and Chordata.
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