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Human placenta is

A. Endothelial

B. Haemochorial

C. Epitheliochorial

D. Syndesmochorial

Correct Answer :

B. Haemochorial


Related Questions

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Forensic investigation of rape case focuses on the presence of fructose in female reproductive system, the only part of the human body producing fructose is

A. Cowper's gland

B. Prostate gland

C. Testes

D. Seminal vesicle

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Pregnancy is ascertained by

A. Insemination

B. Copulation

C. Implantation

D. Capacitation

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After fertilization, implantation of human embryo takes place on

A. 10 th day

B. 14 th day

C. 7 th day

D. 3 rd day

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Prostate gland produces a secretion for ...

A. Attracting sperms

B. Stimulating sperm activity

C. Inhibiting sperm activity

D. None of the above

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Membrane that gives protection to embryo from external shocks is

A. Amnion

B. Allantois

C. Chorion

D. Placenta

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Which part of the foetus is developed from mesoderm?

A. Heart and notochord

B. Heart and brain

C. Spinal cord and notochord

D. Brain and notochord

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The chemical of the ovum that attracts and holds sperm

A. Fertilizin

B. Antifertilizin

C. Agglutin

D. Antiagglutinin

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Embryonic connective tissue is formed from ..

A. ectoderm

B. endoderm

C. Mesenchyme

D. Mesogloea

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The male hormone testosterone is secreted by

A. Sertoli cells

B. Leydig cells

C. Crypt cells

D. Semniferous tubules

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The middle piece of the sperm contains

A. Protein

B. Nucleus

C. Mitochondria

D. Centriole

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Medical termination of pregnancy is safe till how many weeks of pregnancy?

A. 10 weeks

B. 12 weeks

C. 20 weeks

D. 22 weeks

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Part of sperm that passes into ovum is

A. Tail

B. Acrosome

C. Head

D. Head, neck and middle piece

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Total numbers of ovum released in the life time of a woman is approximately

A. 40

B. 400

C. 4000

D. 20000

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Which one takes part in formation of placenta? ...

A. Only trophoblast

B. Only allantois

C. Trophoblast and mesoderm

D. Trophoblast and mesoderm and allantois

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In a semen analysis, the following is not acceptable as normal�

A. 25 % abnormal forms

B. 60% motility after 3 hours

C. Mild Alkaline reaction

D. Sperm count of 17 million per ml.

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When there is no fertilization, the corpus luteum ...

A. Stops secreting progesterone

B. Changes to corpus albicans

C. Starts producing progesterone

D. Begins next cycle

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Sertoli cells are found in

A. Seminiferous tubules

B. Ovaries

C. Prostate gland

D. Semen

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The embryonic stage that resembles a mulberry fruit is

A. Nerula

B. Gastrula

C. Morula

D. Blastula

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Mammary glands are modification of ...

A. Sebaceous glands

B. Sweat glands

C. Meibomian glands

D. None of the above

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Number of chromosomes in secondary oocyte stage in humans is ...

A. 23

B. 46

C. 18

D. 20

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Mongolian idiocy due to trisomy in 21st chromosome is known as

A. Downs syndrome

B. Turners syndrome

C. Klinefelters syndrome

D. Triple x syndrome

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Human embryo is referred to as fetus from beginning of

A. 1st month of pregnancy

B. 2nd month of pregnancy

C. 3rd month of pregnancy

D. 4th month of pregnancy

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Villi of human placenta develop from ..

A. Chorion

B. Allantois

C. Yolk sac

D. Amnion

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Cu ions released from copper-releasing intra uterine devices (iuds)

A. Prevent ovulation

B. Suppress sperm motility

C. Prevents implantation of embryo

D. Kills sperms

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Most of major organs of human embryo are formed by the

A. 16th week of pregnancy

B. 15th week of pregnancy

C. 14th week of pregnancy

D. 12th week of pregnancy

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In uterus, endometrium proliferates in response to ...

A. Relaxin

B. Oxytocin

C. Progesterone

D. Oestrogen

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In which phase of menstrual cycle ovulation occurs in

A. Luteal

B. Menstrual

C. Proliferative

D. Secretory

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Haemophilic man marries a normal woman. Their off springs will be

A. All haemophilic

B. All boys haemophilic

C. All girls haemophilic

D. All normal

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Decreased motility of sperm <40 % is known as

A. Azoospermia

B. Oligospermia

C. Asthenozoospermia

D. Necrozoospermia

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Tunica albuginea is related to

A. Prostate gland

B. Pituitary gland

C. Hypothalamus

D. Testes