NEET BIOLOGY

Detailed explanation-1: -The spinal cord is an extension of the central nervous system (CNS), which consists of the brain and spinal cord. The spinal cord begins at the bottom of the brain stem (at the area called the medulla oblongata) and ends in the lower back, as it tapers to form a cone called the conus medullaris.

Detailed explanation-2: -The spinal cord is a long bundle of nerve tissue. In an adult, it’s about 18 inches long and 1/2-inch thick. It extends from the lower part of the brainstem down the back. The spinal cord has three sections that run the length of the spine.

Detailed explanation-3: -The spinal cord is a long, thin tubular structure which is an extension of the medulla oblongata, the last part of the brain. It extends all the way down to the bottom of the spine. It is an integral part of the central nervous system and it consists of 31 pairs of nerves. It’s primarily responsible for reflex actions.

Detailed explanation-4: -The statement is false, the spinal cord originates from the medulla. The hindbrain has three parts: the pons, cerebellum and medulla (also called the medulla oblongata).

Detailed explanation-5: -The spinal cord proper terminates in a region called the conus medullaris, while the pia mater continues as an extension called the filum terminale, which anchors the spinal cord to the coccyx.