Question

The structure of the spinal cord can be described as (1) composed of thirty-one segments (2) having a cervical enlargement and a lumbar enlargement (3) a central core of gray matter that is surrounded by white matter (4) having gray matter that is composed of myelinated nerve fibers Group of answer choices

Answer 1

Answer: The structure of the spinal cord can be described as consisting of all the above named.

Explanation:The spinal cord is the main pathway for information connecting the brain and peripheral nervous system. Much shorter than its protecting spinal column, the human spinal cord originates in the brainstem, passes through the foramen magnum, and continues through to the conus medullaris near the second lumbar vertebra before terminating in a fibrous extension known as the filum terminale.

It is about 45 cm (18 in) long in men and around 43 cm (17 in) in women, ovoid-shaped, and is enlarged in the cervical and lumbar regions.