Pain signals move from peripheral nervous system to the spinal cord and many gates are present in between which regulate these signals. The slow pain signals then move from the spinal cord to the <span>hypothalamus and limbic system. The former releases hormones which are stress-related, the latter is associated with the emotions and feelings related to the same. These signals are slow because they pass through the brain parts which are responsible for the emotions also, which is limbic system and prefrontal cortex. This lag time enables the person to feel the severity of pain and protect from it. For example, the soldier feels less pain because he is attached to the war scenario in a different manner, as compared to the civilian, and therefore, pain signals follow a different pathway, leading to a feeling of comparatively lesser pain and other activities are less affected.</span>
<span>Introduction of microorganisms from the bloodstream</span>
Im pretty sure we only have one liver so the answer is yes
Answer:
Swallowed, Chewed, Inhaled, Injected
Explanation:
The choices are:
a. The fetus undergoes the most rapid weight gain during the first trimester.
b. The fetus takes an average of 30 weeks to mature after conception.
c. Fetal organ systems develop at a steady rate throughout pregnancy.
d. To ensure proper growth, a fertilized egg must implant in the wall of the uterus.
Answer:
The answer is letter d, To ensure proper growth, a fertilized egg must implant in the wall of the uterus.
Explanation:
The fetal development process starts with the conception and implantation. <em>Conception</em><u> is the process by which the male's sperm meets with the woman's egg cell in order to be fertilize</u>d. Once the egg is fertilized, it has to be implanted in the woman's uterus. Once it adheres to the wall, the fertilized egg cell (embryo) now becomes known as a<em> "blastocyst."</em> This is a very essential stage for fetal development because this allows the embryo to receive proper nutrients from its mother.
Implantation occurs at least 6 to 9 days after the egg is fertilized. A woman may experience the following symptoms:<em> fatigue, breast tenderness, increased urination, food cravings, morning sickness, mood swings, headaches, etc.</em>