Biology
Human Reproduction and Contraception
742 Questions
Human reproduction and contraception focus on the menstrual cycle, hormonal changes, pregnancy, and various contraceptive methods. These topics are frequently asked in general science sections. Practice these questions to master the fundamentals of reproductive health.
Menstrual cycle phasesMenopause and hormonesReproductive health problemsContraceptive methods overview
Human Reproduction and Contraception Questions
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retention of pregnancy
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child birth
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ovulation
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milk production
A
Correct answer
Explanation
The corpus luteum secretes progesterone, which maintains the endometrial lining for potential embryo implantation and supports early pregnancy until the placenta takes over. This function is essential for 'retention of pregnancy'. Childbirth is triggered by oxytocin, ovulation is caused by LH surge, and milk production is stimulated by prolactin - not corpus luteum functions.
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Estrogen builds up the lining of the uterus.
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Progesterone secretion decreases after ovulation.
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A drop in progesterone causes the lining to break down.
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The menstrual cycle is from day 1 of bleeding to day 1 of the next time of bleeding.
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About once a month, the uterus grows a new lining to get ready for a fertilised egg.
B
Correct answer
Explanation
Progesterone secretion increases after an ovary releases an egg (ovulation) at the middle of the cycle. This helps the estrogen keep the lining thick and ready for a fertilised egg.
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Ovaries
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Uterus
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Vagina
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Fallopian tubes
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Bartholin's glands
E
Correct answer
Explanation
These glands are located beside the vaginal opening and produce a fluid secretion. It is a one of the important parts among the main external structures of the female reproductive system.
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adolescence
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metamorphosis
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teenage
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puberty
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adulthood
D
Correct answer
Explanation
The age at which the reproductive system becomes functional is called puberty. The human body undergoes several changes during adolescence, which marks the onset of puberty.
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Voice changes
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Diet increases
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Menstruation starts
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Body weight increases
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Height increases
C
Correct answer
Explanation
The beginning of the menstrual cycle is an indicator of the beginning of the reproductive age in females.
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menstruation
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menarche
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mesarche
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menopause
A
Correct answer
Explanation
The shedding of the uterine thickening along with its blood vessels is known as menstruation.
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Estrogen
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Testosterone
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Larynx
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Gamete
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Autosome
D
Correct answer
Explanation
A gamete is a mature reproductive cell - a sperm or an ovum. This is the correct option.
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Menopause
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Menarche
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Menstrual cycle
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Ovulation
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Pregnancy
B
Correct answer
Explanation
The first menstrual flow begins at puberty and is called menarche.
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Because of irregular sex hormones
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Because of development of secondary sex organs
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Because of reproductive maturity
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Because of increased activity of sebaceous and sweat glands
D
Correct answer
Explanation
The reason why many adolescents get acne and pimples at the time of puberty is because of increased activity of sebaceous or oil and sweat glands.
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IUCD
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Cervical cap
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Diaphragm
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Contraceptive sponge
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Oral contraceptives
E
Correct answer
Explanation
Oral contraceptives contain synthetic hormones. They contain both estrogen and progestin and mainly work by preventing ovulation and by making the lining of the uterus thinner. Hormonal contraceptives are best avoided in case of heart patients.
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The hormonal IUDs may stop menstruation altogether.
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An intrauterine device is inserted into the vagina.
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Copper acts as a spermicide within the uterus.
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Other shapes of IUD are held in place by a suture to the fundus of the uterus.
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Most copper IUDs have a plastic T-shaped frame.
B
Correct answer
Explanation
An intrauterine device is a small contraceptive device, often 'T'-shaped and containing either copper or levonorgestrel, which is inserted into the uterus.
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Serum lactate dehydrogenase
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Serum alphafetoprotein
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Serum inhibin
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Serum HCG
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Serum activin
A
Correct answer
Explanation
Dysgerminomas produce placental alkaline phosphatase and lactate dehydrogenase, so their level rises. Serum lactate dehydrogenase is most often measured to check for tissue damage.
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Choriocarcinoma
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Embryonal cell carcinoma
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Dysgerminomas
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Malignant teratoma
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Testicular cancer
C
Correct answer
Explanation
Dysgerminomas are the most common malignant germ cell tumors, appraising for about 35% to 45% of all ovarian cancers of germ cell origin in females.
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Cutting and ligating the ends of segments of vas deferens
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Surgical removal of a segment of oviduct
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Use of copper-T and loop
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Use of spermicide in vagina
C
Correct answer
Explanation
Intra-uterine contraception implies use of copper-T and loop.
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Physical method - Condom
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Chemical method - Oral pills
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Hormonal method - Menstrual induction
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Terminal method - Laproscopy
B
Correct answer
Explanation
Oral pills are hormonal method of family planning. Pills cause withdrawal of exogenous hormones which cause bleeding. Chemical methods include foam tablets, foam aerosols, creams, jellies, pastes, suppositeries, and soluble films.