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Rhythmic reproductive cycle in female pr...

Rhythmic reproductive cycle in female primates (Monkeys, apes, humans etc.) is called menstrual cycle. The first menstrual cycle (Menarche) that begins at puberty. It is repeated after an average interval of 28/29 days. Release of one ovum takes place in the middle of each menstrual cycle. The menstrual cycle ceases around post 50 years of age in humans and that stage is called Menopause. Proper understanding of the Menstrual cycle can be used to apply periodic abstinence which is a method of natural birth control. A couple can stay away from performing coitus/ sexual intercourse between the `10^(th)` and `17^(th)` of the menstrual cycle. These are the days when ovulation takes place, resulting in higher chances of fertilisation. This can help with a natural course of family planning.
The given graph shows the level of Luteinising hormone in various phases of menstrual cycle. Which phase might be represented by P3?

A

Menstrual

B

Proliferative

C

Luteal

D

Ovulatory

Text Solution

Verified by Experts

The correct Answer is:
D
The levels of LH reach the highest during the ovulatory phase, leading to rupture of the Graafian follicle and release of ovum. Hence, P3 represents the ovulatory phase.
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Knowledge Check

  • Rhythmic reproductive cycle in female primates (Monkeys, apes, humans etc.) is called menstrual cycle. The first menstrual cycle (Menarche) that begins at puberty. It is repeated after an average interval of 28/29 days. Release of one ovum takes place in the middle of each menstrual cycle. The menstrual cycle ceases around post 50 years of age in humans and that stage is called Menopause. Proper understanding of the Menstrual cycle can be used to apply periodic abstinence which is a method of natural birth control. A couple can stay away from performing coitus/ sexual intercourse between the 10^(th) and 17^(th) of the menstrual cycle. These are the days when ovulation takes place, resulting in higher chances of fertilisation. This can help with a natural course of family planning. Menstrual phase can last for:

    A
    24-48 hours
    B
    28 or 29 days
    C
    10-14 days
    D
    3-5 days

  • Rhythmic reproductive cycle in female primates (Monkeys, apes, humans etc.) is called menstrual cycle. The first menstrual cycle (Menarche) that begins at puberty. It is repeated after an average interval of 28/29 days. Release of one ovum takes place in the middle of each menstrual cycle. The menstrual cycle ceases around post 50 years of age in humans and that stage is called Menopause. Proper understanding of the Menstrual cycle can be used to apply periodic abstinence which is a method of natural birth control. A couple can stay away from performing coitus/ sexual intercourse between the 10^(th) and 17^(th) of the menstrual cycle. These are the days when ovulation takes place, resulting in higher chances of fertilisation. This can help with a natural course of family planning. The beginning of menstruation in human females is known as:

    A
    Menarche
    B
    Menopause
    C
    Menstrual kink
    D
    Luteal degeneration

  • Rhythmic reproductive cycle in female primates (Monkeys, apes, humans etc.) is called menstrual cycle. The first menstrual cycle (Menarche) that begins at puberty. It is repeated after an average interval of 28/29 days. Release of one ovum takes place in the middle of each menstrual cycle. The menstrual cycle ceases around post 50 years of age in humans and that stage is called Menopause. Proper understanding of the Menstrual cycle can be used to apply periodic abstinence which is a method of natural birth control. A couple can stay away from performing coitus/ sexual intercourse between the 10^(th) and 17^(th) of the menstrual cycle. These are the days when ovulation takes place, resulting in higher chances of fertilisation. This can help with a natural course of family planning. In absence of fertilisation, corpus luteum .............

    A
    Proliferates
    B
    Degenerates
    C
    Add new layers
    D
    Develops a fluidic cavity

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    Rhythmic reproductive cycle in female primates (Monkeys, apes, humans etc.) is called menstrual cycle. The first menstrual cycle (Menarche) that begins at puberty. It is repeated after an average interval of 28/29 days. Release of one ovum takes place in the middle of each menstrual cycle. The menstrual cycle ceases around post 50 years of age in humans and that stage is called Menopause. Proper understanding of the Menstrual cycle can be used to apply periodic abstinence which is a method of natural birth control. A couple can stay away from performing coitus/ sexual intercourse between the 10^(th) and 17^(th) of the menstrual cycle. These are the days when ovulation takes place, resulting in higher chances of fertilisation. This can help with a natural course of family planning. Primary follicle changes into Graafian follicle in ............... phase.

    Rhythmic reproductive cycle in female primates (Monkeys, apes, humans etc.) is called menstrual cycle. The first menstrual cycle (Menarche) that begins at puberty. It is repeated after an average interval of 28/29 days. Release of one ovum takes place in the middle of each menstrual cycle. The menstrual cycle ceases around post 50 years of age in humans and that stage is called Menopause. Proper understanding of the Menstrual cycle can be used to apply periodic abstinence which is a method of natural birth control. A couple can stay away from performing coitus/ sexual intercourse between the 10^(th) and 17^(th) of the menstrual cycle. These are the days when ovulation takes place, resulting in higher chances of fertilisation. This can help with a natural course of family planning. During Luteal phase, corpus luteum secretes large amount of .................... for endometrium maintenance.

    Menstrual cycle is repeated at an average interval of:

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