Basically we can divide the whole cycle into 6 phrase. menstruation, repair phrase, ovulation, receptive phrase, and pre menstrual phrase, all in this order.
usually a cycle takes around 28 days, but it can sometimes be longer or shorter depending on different women.
for around the first 5 days (again, it's not exact days) it's menstruation, uterus lining is shed out from the vagina. this only occurs if fertilisation and implantation does not take place.
then for the next few days, it's the repair phrase, oestrogen helps repair the lining of uterus, to thicken it up, to prepare for fertilisation and implantation, a place for the fetus to develope.
next 3 days will be ovulation, where the ovary will release one mature egg (but sometimes 2 or none) into the oviduct, the egg can only survive for a few days so if fertilisation doesn't occur during this phrase, menstruation will occur that cycle.
next will be receptive phrase, where the lining keeps on thickening, and the thickness is maintained by progesterone, another female hormone.
at last it's the pre menstrual phrase, lining will start to degenerate unless implantation ocured.
hope this helps
Answer:
Skeletal muscles also play a role within the cardiovascular system. The heart acts as the pump to move blood out to the body cells, but the skeletal muscles assist with the movement of blood back to the heart.
Explanation:
Answer:
C. After the injury, she was only able to lift light objects.
Explanation:
"Light material floated up and became the early mantle and crust while iron and nickel pulled to the center of Earth" In this sentence, the word light is an adjective that means of little weight. Sentence C uses light in the same way because it is referring to objects that are easy to move since they are not heavy.
In option A, the word light is a verb that means to burn a candle to let them see.
In option B, the word light is a noun that is the brightness that allows us to see.
In option D, light is an adjective that modifies the noun kiss. It describes a delicate, small kiss.