Question

First menstrual cycle is
A. Parturition
B. Menopause
C. Menarche
D. Implantation

Answer 1

Hint: Paruition is known as childbirth. Menopause occurs at the age of 45 or beyond. Menarche occurs between the ages of 12-15 and implantation occurs during pregnancy.

Step by step answer:A menstrual cycle is a hormonal process taking place in the body of a female. It is a process occurring every month and lasting from 3 to 7 days, normally. It is a mechanism of the body to prepare it for a possible pregnancy. It starts at the age of 13, generally and terminates at the age between 45 and 50. The initiation of the cycle embarks the onset of puberty.
In option A, parturition is mentioned. Parturition is another name for childbirth. Childbirth is the culmination of pregnancy during which a baby grows inside a uterus of a female. Childbirth is also known as labor.
In option B, menopause is mentioned. It is a term which refers to the termination of the menstrual cycle. It occurs at the age between 45 and 50 in women. After this, a woman is incapable of giving birth.
In option C, menarche is mentioned. It is the term referring to the first menstrual cycle. Normally, it starts at the age of 13. But it can happen before and after this age as well. It depends on certain factors like genes, diet, etc.
In option D, implantation is mentioned. In females, implantation is the stage of pregnancy during which the embryo attaches itself to the wall of the uterus. At this stage of prenatal development, the mass structure is called a blastocyst. It is due to this adhesion, the embryo receives oxygen and nutrients from the mother in order to grow.
Hence option C is correct.

Note: There are certain symptoms which are caused before menarche. The nipples and the breasts become larger in size. A lot more pubic hair grows. A female will also observe a little amount of vaginal fluid. A change in overall body shape is also seen.