Central pattern generators are one type of circuit. These are related to compound muscle activation. Stretch and inverse stretch reflexes are other kinds of circuits that, respectively, contract or relax muscles upon lengthening. Another kind of circuit is the withdrawl reflex, which protects limbs from noxious stimuli.
The neural tube develops into the vertebrate spinal cord. It forms early in embryonic development from a flat sheet of neural ectoderm that rolls into a tube, eventually differentiating into the brain and spinal cord.
The neural tube
The neural tube is the embryonic predecessor of the brain and spinal cord. Which means, most of what it "does" is develop into a brain and spinal cord. The neural tube is initially formed almost exclusively of stem and progenitor cells. Over time, these stem and progenitor cells adopt specific identities and begin to differentiate neurons and later glial cells and these cells begin forming neural circuits. By the time the neural tube has developed to a point where it is capable of carrying out rudimentary neurological functions, the nomenclature is generally changed to brain and spinal cord rather than neural tube.
The central canal of the spinal cord. The central canal, also known as ependymal canal, is the cerebrospinal fluid-filled space that runs longitudinally through the length of the entire spinal cord.
The brain and spinal cord. The cephalic portion of the nueral tube becomes the brain, the caudal portion becomes the spinal cord.
I believe it is a neural connection from the motor cortex to the spinal cord.
Neural tube
Neural Tube
Ventricles & central canal of spinal cord
Anencephaly also known as neural tube defect.
I believe it encloses a section of the spinal cord ( the spinal axis)
The neural tube develops into the brain and spinal cord during embryonic development.