Answer:
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Explanation:
Answer: The heart consists of four chambers, two atria (upper chambers) and two ventricles (lower chambers). There is a valve through which blood passes before leaving each chamber of the heart. The valves prevent the backward flow of blood.
During First trimester the growth of the fetus is most remarkable as compared to other two trimesters because during this period structure and organ systems develop.
<h3>What changes occur in fetus during the first trimester?</h3>
First of all nerves system develops during which formation of brain, spinal cord, and nerves take place.
Secondly an S-shaped tube forms the heart of the baby.So heart is developed during first trimester.
The facial feature of the baby take shape and eyes as well as ears form on the sides of the head.
The arms and legs starts to appear like little buds and sexual organs of the baby also formed during this stage.
Therefore,first trimester is the most remarkable stage of the fetal development.
Learn more about first trimester here:
brainly.com/question/428652
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Saturated fats -> raises HDL
Unsaturated fats -> raises LDL
Lipoprotein -> transport cholesterol
Cholesterol -> provides structure to cells
Hope this helps :)
