Glial cells are unimportant structural elements of the spinal cord that do nothing more than hold all the important things together, like the nerves.
举一反三
- The peripheral nervous system(PNS) consists of （） A: brain ，brain stem 脑，脑干 B: brain， cranial nerves 脑，脑神经 C: spinal cord，brain stem脊髓，脑干 D: spinal cord ， spinal nerves 脊髓，脊神经 E: spinal nerves ，cranial nerves脊神经，脑神经
- A spinal segment is defined as region of the spinal cord that A: corresponds to a collection of nerves passing up or down within the white matter B: corresponds to the region of the vertebral column (i.e. cervical, thoracic, lumbar, and sacral) to which spinal nerves arise C: refers to a region of the spinal cord from which a pair of spinal nerves arises D: underlines the neural arch of a particular vertebra in the adult
- Nothing is more important than _______________.
- Any of the star-shaped cells in the tissue supporting the brain and spinal cord is called a(n) _____.
- It can be inferred from the passage that in artistic creation______. A．product is more important than process B．process is more important than product C．process and product are equally important D．both process and product are unimportant