Fluids.......................
Hi the answer to your question is called the jugular notch and the cricoid cartilage that the thyroid gland is between.
Hope this helps.
A vertebrate-animal embryo gives rise to the centrum. The centrum is a bone that is part of the vertebral column. It is the hollow space within the vertebra that protects and contains the spinal cord. Within this hollow area are several nerves that send impulses to the brain enabling the organism to function and be at its homeostasis.
