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  • Question 1 - Turner's syndrome is characterised by : ...

    Correct

    • Turner's syndrome is characterised by :

      Your Answer: Streak ovaries

      Explanation:

      Turner syndrome, a condition that affects only females, results when one of the X chromosomes (sex chromosomes) is missing or partially missing. Turner syndrome can cause a variety of medical and developmental problems, including short height, failure of the ovaries to develop and heart defects. Streak ovaries are a form of ovarian dysgenesis and are associated with Turner syndrome. Occasionally they may be functional and secondary sexual characteristics may develop.

    • This question is part of the following fields:

      • Embryology
      7.7
      Seconds

  • Question 2 - The third pharyngeal arch gives rise to which of the following structures? ...

    Incorrect

    • The third pharyngeal arch gives rise to which of the following structures?

      Your Answer: Trigeminal Nerve

      Correct Answer: Glossopharyngeal nerve

      Explanation:

      The 3rd arch gives rise to the Glossopharyngeal nerve.

    • This question is part of the following fields:

      • Embryology
      6.7
      Seconds

  • Question 3 - Regarding implantation, how many days after fertilisation does it typically occur? ...

    Incorrect

    • Regarding implantation, how many days after fertilisation does it typically occur?

      Your Answer: 3

      Correct Answer: 8

      Explanation:

      Fertilization usually occurs in the fallopian tubes after ovulation. The zygote moves through the fallopian tube and implants in the endometrium about 7-9 days after fertilisation, or 6-12 days after ovulation.

    • This question is part of the following fields:

      • Embryology
      7.6
      Seconds

  • Question 4 - A 15 year old girl is being investigated for primary amenorrhoea. She has...

    Incorrect

    • A 15 year old girl is being investigated for primary amenorrhoea. She has normal FSH,LH and E2 levels on hormone profiling and normal secondary sexual characteristics. An ultrasound shows no uterus. What is the likely diagnosis?

      Your Answer: Testicular Feminisation Syndrome

      Correct Answer: Rokitansky-Kuster-Hauser syndrome

      Explanation:

      Mullerian agenesis occurs in 1 in 5000 to 1 in 40000 girls. The Mullerian system does not develop which results in an absent uterus and upper vagina. This condition is also known as Rokitansky-Kuster-Hauser syndrome, The ovarian function is normal and so the most common presentation is amenorrhea in the presence of an otherwise normal pubertal development.

    • This question is part of the following fields:

      • Embryology
      63.5
      Seconds

  • Question 5 - What is the innervation to the sigmoid colon? ...

    Correct

    • What is the innervation to the sigmoid colon?

      Your Answer: T12/L1

      Explanation:

      Sigmoid colon is part of the hindgut and the hindgut is innervated by the T12-L1 segment of the spinal nerves.

    • This question is part of the following fields:

      • Embryology
      6
      Seconds

  • Question 6 - Which one of the following changes are in the correct sequence regarding female...

    Correct

    • Which one of the following changes are in the correct sequence regarding female puberty?

      Your Answer: Thelarche, maximal growth velocity, menarche

      Explanation:

      Thelarche means appearance of the breast tissue under the influence of oestrogen from the ovaries. It heralds the onset of puberty among girls. It is followed by an increase in growth velocity followed by menarche which is the time of first menstrual bleeding.

    • This question is part of the following fields:

      • Embryology
      18.4
      Seconds

  • Question 7 - In the non-pregnant state which of the following hormones is secreted by the...

    Correct

    • In the non-pregnant state which of the following hormones is secreted by the corpus luteum?

      Your Answer: Progesterone

      Explanation:

      The Corpus Luteum is a temporary endocrine structure that secretes two steroid hormones: 1. Progesterone (17a Hydroxyprogesterone) and 2. Oestradiol. The corpus luteum also secretes Inhibin A. In the menstrual cycle if fertilisation doesn’t occur the corpus luteum stops secreting progesterone and degenerates into a corpus albicans. If fertilisation occurs hCG signals the corpus to continue progesterone production and it is then termed the corpus luteum graviditatis

    • This question is part of the following fields:

      • Embryology
      18.9
      Seconds

  • Question 8 - Which one of the following statements is related to testicular feminization syndrome? ...

    Correct

    • Which one of the following statements is related to testicular feminization syndrome?

      Your Answer: There are usually normal testes

      Explanation:

      Androgen insensitivity (testicular feminization) syndrome is a rare inherited form of male pseudo hermaphroditism that occurs in phenotypically normal women with adequate breast development, normal external genitalia, a vagina of variable depth, absent uterus, and sparse or absent pubic hair and axillary hair. Testosterone levels are normal or elevated.

    • This question is part of the following fields:

      • Embryology
      22
      Seconds

  • Question 9 - Several mechanisms have been proposed as to what causes closure of the Ductus...

    Incorrect

    • Several mechanisms have been proposed as to what causes closure of the Ductus Arteriosus (DA) at Parturition. Which of the following is the most important in maintaining the patency of the DA during pregnancy?

      Your Answer: PGE1

      Correct Answer: PGE2

      Explanation:

      Prostaglandin E1 and E2 help maintain the patency of the DA during pregnancy. PGE2 is by far the most potent and important. It is produced in large quantities by the placenta and the DA itself.

    • This question is part of the following fields:

      • Embryology
      9.4
      Seconds

  • Question 10 - All of the following complications can be found in a pregnant patient with...

    Correct

    • All of the following complications can be found in a pregnant patient with a bicornuate uterus, except?

      Your Answer: Polyhydramnios

      Explanation:

      Women with a bicornuate uterus are at increased risk of recurrent abortions, premature birth, fetal malpositioning, placenta previa and retained products of placenta leading to post partum haemorrhage.

    • This question is part of the following fields:

      • Embryology
      13.8
      Seconds

SESSION STATS - PERFORMANCE PER SPECIALTY

Embryology (6/10) 60%
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