MBBS questions collection of Embryology
Embryology
- Define spermatogenesis and oogenesis.
- Mention the changes of germ cells during spermatogenesis and spermiogenesis.
- Give the difference between male and female gametes.
- Difference between 1st meiotic division in male and 1st meiotic division in the female.
- What is the acrosomal cap? Give it important.
Menstruation and ovulation
- Define ovulation and ovarian cycle.
- Name the barriers crossed by the sperm during fertilization.
- Gives the result of fertilization.
- Give the response of oocyte to fertilization.
- Define cleavage. The site, phase, and the result of fertilization.
- Draw and label blastocyst.
- Write the difference between morula and blastocyst.
- Write the difference between acrosomal reaction and zona reaction.
- Write short notes on capacitation.
Implantation
- Define implantation. Give its normal and abnormal site.
- Describe the structure of endometrium at the time of decidua? What are its parts?
- Mention the characteristics change in the endometrium at the time of implantation.
- Mention the events of the first week of development.
- Draw and label the structure of a morula. How does it differ from blastocyst?
- Short note on decidual reaction and zona reactions.
The second week of development
- Draw and label 2nd week of an embryo.
- 2nd week of development is called the week of twos. Explain it
- Give the structures that develop during 2nd week of development.
Third week to 8th week of development
- Define gastrulation.
- Name four important structures derived from 3 germ layers.
- What do you mean by neurulation?
- Give the derivatives of surface ectoderm.
- How neural crest is formed? Give its derivative.
- Give formation, fate, defect of neural tube.
- Write down the derivations of intermediate mesoderm.
- Write down the derivations of intermediate mesoderm.
- Write down the role of primitive streak per the formation of gastrulation.
- Define notochord.
- Give different stages of development of definitive notochord.
- What are the different parts of intraembryonic mesoderm? Give their derivatives in a tabulated form.
- Short note:
- Notochord
- Primitive streak
- Neural ectoderm
- Somatomeres
- Paraxial mesoderm
Others
- What do you mean by congenital malformation?
- What do you mean by teratogenesis?
- Write down the principle of teratogenesis?
- Give the development and congenital malformation of the permanent palate.
- Classify teratogens with examples.
- Make the graph showing the time in gestation versus the sick of birth defects being induced.
- What is decidua? Draw and label its different parts and give the fate of each part.
Fetus and placenta
- Name the fetal membrane.
- Give the structure. Development and functions of the placenta.
- Mention in short the development stage of placental villi.
- Write the structure of primary, secondary & tertiary chronic villi.
- Give the layers of placental barriers.
- What are the placental barriers? Give its structure and function.
- What is plancental previa?
- Give the structures of chronic plate presenting of fetal part of the placenta.
- Mention the changes that occur in the fetal circulation of birth.
Systemic embryology
- What is the pharyngeal apparatus?
- What do you mean by pharyngeal pouches and pharyngeal cleft?
- Give the fate of different pharyngeal arches, pouch, and cleft.
- Name the structure derived from pharyngeal arches, pouch, and cleft.
- Write down the development of the testis . How its descent to its normal position.
- Derivatives of First and Second pharyngeal arch.
- What do you mean by aortic arch artery? Describe the fate of different aortic arch arteries.
- What do you mean by aortic arch? give the fate of different of 4 th and 6 th aortic arches.
- What is a bronchial cyst? what is stomodeum and proctodeum?
- Give the fate of septum transverse. development a) intervertebral disc.
- Mention the parts of intra embryonic mesoderm. what is the fate of a somite
- What is cloaca? give the fate in both sexes.
- Give the fate and formation of gonadal duct in both sexes.
- How the intermaxillary segment is formed? mentions its different components and structure derived from each component.
- Give the fate of the mesonephric duct.
- Short note:
- Mesonephric duct
- Anencephaly
- 1st pharyngeal arch
Other
- Innumerate Mendel's law of inheritance
- What is vasculogenesis and angiogenesis?
- Write the development of the tympanic membrane.
- What is homer syndrome?
- How primitive gut tube is formed? classify it name the structure derived from it.
- Define growth and types with examples.
- What do you mean by autogeny and phylogeny? “Ontogeny repeats phylogeny” Explain it.
- What is the difference between totipotent pluripotent characters of cell.
- What is gene? What do you mean by the dominant gene? Write the features of Klinefelter's syndrome.
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