spinal cord may be affected
This part of the cord affects the legs and back.
The neural tube develops into the brain and spinal cord during embryonic development.
Neural tube
The association areas are the last regions of the brain to fully develop their myelination, which helps with faster and more efficient neural communication. These areas are responsible for higher cognitive functions like reasoning, problem-solving, and decision-making in the brain.
Preganglionic neurons develop from the neural tube during embryonic development. They are part of the autonomic nervous system and transmit signals from the central nervous system to the autonomic ganglia, where they synapse with postganglionic neurons.
An action happens. Her organs observe and send neural impulses to her brain. Her brain processes what happens, lighting up neural pathways. These chemicals and impulses cause her brain to make decisions.
The first system to form in a human embryo is the nervous system. The neural tube, which will develop into the brain and spinal cord, is one of the earliest structures to develop in the developing embryo.
The lower limbs and muscles and the bladder and bowel.
The heart is the second organ to develop in the embryo, following the development of the neural tube. It starts to form and beat by about the third week of gestation.
Spina bifida occurs during the first trimester. Spina bifida is in a class of birth defects known as neural tube defects. The neural tube eventually develops into the spinal cord, brain and the tissues that enclose them. In a normal pregnancy the tube forms early and closes by the twenty eighth day. With spina bifida portions of the neural tube fail to develop properly causing defects of varying severity in the spinal cord and back bones. This is a complicated topic and you can read more about it at the related link.
Yes, the thickening of the surface ectoderm to form the neural plate is one of the first visible signs that the nervous system is forming in the embryo. This process marks the beginning of neurulation, during which the neural plate folds and eventually closes to form the neural tube, from which the brain and spinal cord develop.