UNIT#11 REPRODUCTION Flashcards by Dr. Xainter

Which one of the following is a diploid structure?

Primary Spermatocyte

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Which one of the following causes the growth and development of germinal epithelium of the testers?

FSH

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Production of slightly acidic luid with citrate asa main nutrient source is the function of:

Prostate Gland

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Structure that undergoes meiosis I is:

Primary Spermatocyte

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Spermatozoa are formed from spermatids as a result of:

Differentiation

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Prior to emission and ejaculation, spermatozoa are stored in:

Epididymis

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Fructose production as a nutritional component for sperms is the function of:

Seminal Vesicles

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Human sperm and ova show similarities in the following aspects.

Both are haploid

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All of the following contribute to the formation of semen except:

➡Seminal Vesicles❌
➡Cowper’s Gland❌
➡Prostate Gland❌
➡Vas Deferenss✅

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The correct sequence of events in spermatogenesis is:

Spermatogonia > Primary Spermatocyte > Secondary Spermatocyte > Spermatid > Spermatozoa

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All of the following structures are paired except:

Prostate Gland

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The main function performed by the bulbourethral gland in humans is/are:

Neutralization of urethra

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How many spermatozoa and ova are produced from 50 primary spermatocytes and 50 primary oocytes?

➡200 spermatozoa
➡50 ova

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Motile and completely mature cell with flagellum is:

Spermatozoa

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The first cells produced by the repeated cell division of germinal epithelium of testis are:

Spermatogonia

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A type of cell in human testis which produces testosterone is called:

Interstitial Cells

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Which one of the following differentiates directly into mature sperm?

Spermatid

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What is the location of interstitial cells in testes?

Between the seminiferous tubules

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Spermatogonia differentiates directly into:

Primary Spermatocyte

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All of the following are parts of male copulatory organ except:

➡Ejaculatory Duct✅
➡Prepuce❌
➡Urethra❌
➡Glans Penis❌

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Sperms are nourished and activated through:

Semen

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A cell contains two copies of each functional gene:

Spermatogonium

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Each testis is divided into ___ lobules.

250-300

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Which of the following hormone is responsible for the control of spermatogenesis at a normal rate?

Inhibin

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During spermatogenesis, the ______, which are haploid cells eventually mature into spermatozoa/mature sperms.

Spermatids

Layer of uterus that is under control of estrogen

Endometrium

After fertilization, embryo implants itself to the ___ part of uterus.

Endometrium

Cervix is blocked by:

Plug of mucus

Fertilization of a secondary oocyte by sperm takes place at:

Proximal part of uterine tube

The development of secondary oocyte into ovum is compeleted in:

Uterine Tube

What will be the effect on the duration of the menstrual cycle if one of the ovaries is removed?

Menstrual cycle remains unaffected

Progesterone production within ovaries is accomplished by following structure:

Rupruted Follicle

The layer of uterus that is shed with each reproductive cycle is:

Endometrium

Maximum chances of fertilization in human females exist usually during _____ of the reproductive cycle.

14th to 16th day

In a menstrual cycle of 45 days, what would be the most probable day of ovulation?

31th

Endometrium shows maximum thickness during:

Secretory Phase

Menstruation is the discharge of:

➡Blood ➡Mucous ➡Cellular Derbis

Menstruation usually continues for:

3-7 Days

At ovulation egg is released as:

Secondary Oocyte

In young females, ovulation occurs at ___ days of the reproductive cycle.

14th

One of the followings is related to the ovary:

Luteal Phase

At ovulation an egg is released as:

Secondary Oocyte

One of the followings is related to ovary:

Luteal Phase

Only Graffian follicle grows with egg. The rest of follicles are destroyed by a process:

Follicle atresia

Fraternal twins, triplets, and quadruplets in humans occur when:

Multiple ovulations occurs

Which layer of the uterus undergoes cyclic changes during the menstrual cycle?

Endometrium

The menstrual cycle starts at puberty. This is termed as:

Menarche

Ovulation day in a normal menstrual cycle is on day:

14th

Maintenance of pregnancy is made possible mainly by:

Progesterone

Complete stop of menstrual cycle is called:

Menopause

The yellowish glandular structure formed after the release of an egg from the follicle is called:

Corpus Luteum

On puberty, the development of primary follicles is stimulated by:

FSH

In females, FSH stimulates the ovary to produce:

Estrogen

The oocyte is released during ovulation is in:

Metaphase II

Shortes phase in the menstruation cycle is:

Ovulatory Phase

The female menstrual cycle is controlled by:

Gondotrophin

In which phase of the human female menstrual cycle, the endometrium prepares for the implantation of the embryo?

Secretory Phase

Events of the menstrual cycle are regulated by the:

Gonadotrophins

Decrease of FSH and increase of estrogen cause the pituitary gland to secrete:

Luteinizing Hormone

FSH stimulates the production of estrogen hormone which has two targets ___ and ___.

➡Uterus ➡Anterior Pituitary

Ovulation is suppressed by progesterone via:

Inhibition of both FSH & LH

Which of the following hormone suppresses ovulation?

Progesterone

Which of the following hormone causes ovulation?

Which hormone is released in females in response to FSH from the pituitary gland?

Which of the following hormone acts on the uterus wall for thickening?

Progesterone

Which hormonal pair would maintain the endometrium and make it receptive to the implantation of the embryo?

➡Estrogen ➡Progesterone

Which of the following hormone stimulates the ovulation from the follicle into the oviduct?

Luteinizing Hormone

The hormone produced at this particular stage in the menstrual cycle shown in the diagram s:

Progesterone

On the onset of puberty in the females, the pituitary gland releases the:

Follicle Stimulating Hormone

Secretion of FSH is inhibited by:

Estrogen

Progesterone is secreted by:

Corpus Luteum

Which one of the following represents the changes that occur in the ovary and the uterus approximately every 28 days involving ovulation with the breakdown and loss of the lining of the uterus?

Menstrual Cycle

Which of the following hormones of the pituitary gland regulate the menstrual cycle?

➡Follicle Stimulating Hormone ➡Estrogen

Oxytocin performs action on:

Myometrium

It is false about the placenta:

Develops during 1st month of pregnancy

An egg is fertilized in the laboratory and implanted in the uterus for development. This is called:

In vitro fertilization

In ____, the mucous membrane of urinogenital tract is mainly affected.

Gonorrhea

Neisseria gonorrhea causes

Gonorrhoeae

It affects reproductive organs, eye bone joints, and CNS in patients:

Syphilis

Sexually transmitted disease caused by a virus and results n genital ulcers

Genital Herpes