Question

Study the flow chart given below. Name the hormones involved at each stage and explain their function.
Hypothalamus
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pituitary gland
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Ovary
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pregnancy

Answer 1

Hint: The hormone that activates follicles is secreted by the pituitary gland. Its primary function is to activate the ovaries for fertilisation in order to produce mature eggs. It is also the hormone responsible for a normal menstrual cycle being facilitated.

Complete answer:
Hypothalamus-Releasing Hormone-Gonadotropin. This acts to release gonadotropins such as LH and FSH to the pituitary hormone gland.
 Pituitary Gland - Luteinizing Hormone (LH) and Follicle Stimulating Hormone (FSH). FSH encourages follicles to grow. The LH activates corpus luteum ovulation and maintenance. Ovary - The follicles then secrete oestrogen that stimulates endometrial and uterine development. It also assists in the growth of secondary sexual characters. The tertiary follicles, which secrete progesterone, turn into corpus luteum. It assists in endometrium growth and promotes implantation.
Pregnancy: Placenta-released oestrogen. It allows the rising foetus to accommodate the growth of the uterus. Human Chorionic Gonadotropin (HCG) provides the corpus luteum with cues to continue releasing progesterone to protect endometrium. Human Placental Lactogen (hPL) promotes mammary gland growth. Relaxin tends to lengthen and relax the cervical muscle and is also responsible for widening the mother's lower pelvic area to help the baby come out quickly.

Additional Information: Pregnancy is the phase during which one or more offspring grow within a woman, also known as gestation. There is more than one offspring in multiple births, such as with twins. Pregnancy typically occurs through sexual intercourse, although it may occur through procedures aided by reproductive technology. Pregnancy may result in a spontaneous miscarriage, a live birth, an induced abortion or a stillbirth. Usually, conception occurs about 40 weeks from the beginning of the last menstrual cycle. That's just over nine months, averaging 31 days each month. The fertilisation age is roughly 38 weeks when used. During the first eight weeks after fertilisation, an embryo is a developing offspring, after which the term foetus is used until birth. Early pregnancy signs and symptoms may include missed periods, tender breasts, nausea and vomiting, malnutrition, and frequent urination. A pregnancy test can confirm the pregnancy.

Note: The early signs and symptoms of pregnancy that are most common can include Duration Skipped. You could be pregnant if you're in your childbearing years and a week or more has passed without the beginning of an anticipated menstrual cycle. However, if you have an abnormal menstrual cycle, this symbol can be misleading. Swollen, tender breasts. Hormonal changes early in pregnancy will make your breasts vulnerable and sore.