One of the most remarkable examples of cell communication is the fight or flight response. body handle extraordinary situations. responses involved in the fight or flight response. place in the movie. 0:16 An environmental signal travels into the brain. a nerve impulse to the hypothalamus (not shown).
Umbilical cord. In placental mammals, the umbilical cord (also called the navel string, birth cord or funiculus umbilicalis) is a conduit between the developing embryo or fetus and the placenta.
The placenta is an amazing part of your uterus. The placenta exists within the uterus and attaches to the uterine wall. The other side of the uterus attaches to your baby through the umbilical cord, providing a large number of benefits for your baby.For example, the placenta: â Provides nourishment to your baby.â Eliminates waste from your baby. â Exchanges respiratory gasses with your baby, allowing it to breathe through you.he other side of the uterus attaches to your baby through the umbilical cord, providing a large number of benefits for your baby. For example, the placenta: â Provides nourishment to your baby. â Eliminates waste from your baby.