the everlasting. Dictionaries-Smith's Bible Dictionary-Jah. (Jehovah), the abbreviated form of Jehovah, used only in poetry. It occurs frequently in the Hebrew, but with a single exception, (Psalms 68:4) is rendered Lord in the Authorized Version.he everlasting. Dictionaries-Smith's Bible Dictionary-Jah. (Jehovah), the abbreviated form of Jehovah, used only in poetry. It occurs frequently in the Hebrew, but with a single exception, (Psalms 68:4) is rendered Lord in the Authorized Version.
While the initial fertilized cells divide into the fetus and placenta, tiny arms form on the baby. The brain, spinal cord, lungs and heart begin to develop and, by the end of the first month, a heartbeat can be detected. Through the second month, eyelids and ear canals form as well as fingers and toes. Bones and genitals appear. By the third month, all major organs are in place. At just three months, a fetus should weigh about an ounce and measure nearly 3.5 inches. Appendages, internal organs and muscles continue to develop.
This process starts before the developing child is even old enough to be considered a fetus, and is instead still an embryo. A developing human is not considered a fetus until the 9th week of development in the uterus, whereas sex differentiation begins during the 6th week of pregnancy. By the sixth week of development, all embryos have both Wolffian ducts and MÃ¼llerian ducts. The Wolffian ducts are embryonic structures that can form the male internal reproductive system.