Development of the nervous system in humans optical vesicle (which will eventually become the optic nerve, retina and iris) forms at the basal plate of the prosencephalon. In the fifth week, the alar plate of the prosencephalon expands to form the cerebral hemispheres (the telencephalon). The basal plate becomes the diencephalon. The diencephalon, mesencephalon and rhombencephalon constitute the brain stem of the embryo. It continues to flex at the mesencephalon. The rhombencephalon folds posteriorly, which causes its alar plate to flare and form the fourth ventricle of the brain. The pons and the cerebellum form in the upper part of the rhombencephalon, whilst the medulla oblongata forms
If We Are the Body rich over the poor". "If We Are the Body" was produced by Mark A. Miller and Steven Curtis Chapman. It was recorded at Glow In The Dark Studio in Decatur, Georgia and Zoo Studio in Franklin, Tennessee. The song was engineered by Matt Goldman and Sam Hewitt. "If We Are the Body" is a song with a length of three minutes and 58 seconds. It is set in common time in the key of F minor and has a tempo of 126 beats per minute. Mark Hall's vocal range in the song spans from the low note of B to