Dorsal plates are also known as which term?

Dorsal plates are also known as which term?

• A. Alar plates
• B. Basal plates
• C. Floor plates
• D. Root plates

Answer: (A)

Dorsal regions of the neural tube become the alar plate, the sensory portion of the developing spinal cord. The alar plate gives rise to the neurons that form the dorsal horn and receive sensory input from the body via the dorsal roots. This is in contrast to the basal plate, which is the ventral counterpart and develops into motor neurons in the ventral horn. The floor plate is the ventral midline signaling structure, while the roof plate is a separate dorsal midline region. Root plates aren’t used to describe this dorsal region.

Dorsal regions of the neural tube become the alar plate, the sensory portion of the developing spinal cord. The alar plate gives rise to the neurons that form the dorsal horn and receive sensory input from the body via the dorsal roots. This is in contrast to the basal plate, which is the ventral counterpart and develops into motor neurons in the ventral horn. The floor plate is the ventral midline signaling structure, while the roof plate is a separate dorsal midline region. Root plates aren’t used to describe this dorsal region.