<span>platysma is an example of a muscle of facial expression.</span>
A. Neonatal Depression
Explanation - A surgery by general anesthesia is usually avoided in pregnant woman. If there is an emergency then the woman has to undergo surgery. It is looked if the woman can be treated after the first trimester because that is the time when the growth of fetus occurs.
The health of the fetus is dependent directly on the mother. If the mother is exposed to general anesthesia, then the child have the risk of hypoxemia (low oxygen level), depression of fetal cardiovascular and CNS. Fetus is the secondary recipient of anesthesia and in most cases suffers no blood loss and do not undergo direct.
It is important to evaluate an exercise program before you participate because you don't want to severely injure yourself or push yourself beyond your exercise ability.
Hormones
Neuroendocrine cells are like nerve cells, but they also make hormone like cells of the endocrine system. They receive messages from the nervous system and respond by making and releasing hormones. These hormones control many bodily functions.
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Nondisjunction is defined as the failure of the chromosomes to seperate during cell division. An animal with a haploid number of 6 (diploid number of 12) undergoes meiosis, and at the meiosis II (cells are already haploid from the meiosis I), nondisjunction occurs. The mature ovum will contain 6+1 chromosomes (n+1) because there is an extra chromosome from the nondisjunction. The second polar body will contain 5 chromosomes (normal would be 6) because the second polar body did not receive that extra chromosome due to nondisjunction. In the event of fertilization of the abnormal ovum with a normal sperm, the zygote will be a diploid (12 chromosomes) normally but since the ovum as an extra chromosome from the nondisjunction then the zygote will have an extra chromosome (13 chromosomes). One pair of chromosomes has an extra single chromosome and this is called a trisomy.
