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Viva Question and Answers related to Embryology

Here are 50 viva questions and answers related to embryology:

  1. What is embryology? Embryology is the branch of biology that deals with the development of embryos from fertilization to the fetus stage.
  2. What is fertilization? Fertilization is the fusion of a sperm cell with an egg cell, resulting in the formation of a zygote.
  3. What is the role of the zona pellucida in fertilization? The zona pellucida is a glycoprotein layer surrounding the egg cell. It plays a role in sperm recognition and binding during fertilization.
  4. What is cleavage? Cleavage is the rapid cell division of the zygote into smaller cells called blastomeres.
  5. What is a blastocyst? A blastocyst is a structure formed during early embryonic development that consists of an inner cell mass and an outer layer called the trophoblast. Viva Question and Answers Related to Routes of drug Administration in Pharmacology
  6. What is gastrulation? Gastrulation is the process during which the three primary germ layers (ectoderm, mesoderm, and endoderm) are formed from the blastula stage.
  7. What is neurulation? Neurulation is the process of neural tube formation, which gives rise to the central nervous system.
  8. What is the notochord? The notochord is a rod-like structure that forms during embryonic development and serves as a support for the developing embryo.
  9. What are somites? Somites are blocks of mesoderm that give rise to structures such as muscles, vertebrae, and dermis.
  10. What is the role of the neural crest cells? Neural crest cells are a group of cells that migrate from the neural tube and give rise to various tissues, including neurons, cartilage, and pigment cells.
  11. What is the placenta? The placenta is an organ that develops during pregnancy and facilitates nutrient and gas exchange between the mother and the fetus. Viva Questions Related to Features of Different Anemias
  12. What is organogenesis? Organogenesis is the process of organ formation during embryonic development.
  13. What is the role of homeobox genes in embryonic development? Homeobox genes are responsible for controlling the development of body structures and organs by regulating the expression of other genes.
  14. What is the pharyngeal arch system? The pharyngeal arch system consists of a series of arches that give rise to structures such as the jaws, ears, and throat during embryonic development.
  15. What is the role of Hox genes in embryonic development? Hox genes are responsible for patterning along the anterior-posterior axis of the embryo and determining the identity of body segments.
  16. What is apoptosis? Apoptosis is programmed cell death, which plays a crucial role in sculpting tissues and organs during embryonic development. Viva Question and Answers Related to Thyroid Glands
  17. What is the role of fibroblast growth factors (FGFs) in embryonic development? FGFs are signaling molecules that play a role in cell proliferation, differentiation, and migration during embryonic development.
  18. What is the role of sonic hedgehog (SHH) signaling in embryonic development? SHH signaling is involved in patterning and growth of various tissues and organs, including the central nervous system and limbs.
  19. What is the difference between totipotent and pluripotent cells? Totipotent cells have the ability to give rise to all cell types, including extraembryonic tissues, while pluripotent cells can differentiate into all cell types but not extraembryonic tissues.
  20. What is the role of the blastocyst’s inner cell mass? The inner cell mass of the blastocyst gives rise to the embryo proper, including the three germ layers and ultimately all the body’s organs and tissues.
  21. What is the process of implantation? Implantation is the embedding of the blastocyst into the uterine lining, where it establishes connections for nutrient exchange with the mother.
  22. What are the stages of gametogenesis? Gametogenesis includes spermatogenesis (sperm cell formation in males) and oogenesis (egg cell formation in females).
  23. What is the acrosome? The acrosome is a structure in sperm cells that contains enzymes necessary for penetrating the egg cell during fertilization.
  24. What is the difference between blastula and gastrula? A blastula is an early stage embryo consisting of a hollow ball of cells, while a gastrula is a more developed stage with three germ layers and a primitive gut.
  25. What is the function of the yolk sac? The yolk sac provides nutrients to the developing embryo before the placenta is fully functional.
  26. What are the derivatives of the ectoderm? The ectoderm gives rise to structures such as the skin, nervous system, and sensory organs.
  27. What are the derivatives of the mesoderm? The mesoderm gives rise to structures such as muscles, bones, blood vessels, and kidneys.
  28. What are the derivatives of the endoderm? The endoderm gives rise to structures such as the gastrointestinal tract, liver, pancreas, and respiratory system. Viva Questions and Answers Related to Osteology
  29. What is the neural tube? The neural tube is a structure that develops from the ectoderm and gives rise to the brain and spinal cord.
  30. What is the role of the notochord in neural tube formation? The notochord secretes signaling molecules that induce the formation of the neural tube from the overlying ectoderm.
  31. What is the role of the amniotic sac? The amniotic sac contains amniotic fluid that cushions and protects the developing embryo/fetus.
  32. What is the role of Wnt signaling in embryonic development? Wnt signaling is involved in cell proliferation, differentiation, and tissue patterning during embryonic development.
  33. What is the function of the chorion? The chorion is a membrane that surrounds the embryo/fetus and plays a role in nutrient and gas exchange with the mother.
  34. What is the role of retinoic acid in embryonic development? Retinoic acid is a signaling molecule that regulates gene expression and plays a role in cell differentiation and patterning during embryonic development.
  35. What are teratogens? Teratogens are substances that can cause birth defects or abnormalities in the developing embryo/fetus.
  36. What is the role of the umbilical cord? The umbilical cord connects the fetus to the placenta and facilitates nutrient and waste exchange with the mother. Viva Questions and Answers related to Mouth, Pharynx, and Larynx
  37. What is the process of neurulation? Neurulation is the formation of the neural tube from the neural plate, which gives rise to the central nervous system.
  38. What is the role of BMP (bone morphogenetic protein) signaling in embryonic development? BMP signaling is involved in cell differentiation, organogenesis, and skeletal development during embryonic development.
  39. What are somatic cells? Somatic cells are any cells in the body other than reproductive cells (sperm and egg cells).
  40. What is the role of the amnion? The amnion is a membrane that surrounds the embryo/fetus and contains amniotic fluid, providing protection and cushioning.
  41. What is the difference between organogenesis and histogenesis? Organogenesis is the formation of organs during embryonic development, while histogenesis is the formation of tissues within organs.
  42. What is the role of the chorionic villi? Chorionic villi are finger-like projections that extend into the uterine lining and facilitate nutrient and gas exchange between the mother and fetus.
  43. What is the role of the mesenchyme? Mesenchyme is a type of embryonic connective tissue that gives rise to various cell types, including bone, cartilage, and blood vessels.
  44. What is the function of the allantois? The allantois is a membrane involved in waste storage and gas exchange in reptiles, birds, and mammals during embryonic development. Viva Question and Answers Related to Tongue
  45. What is the role of Hox genes in limb development? Hox genes play a role in patterning along the anterior-posterior axis of the limb and determining the identity of limb segments.
  46. What is the process of spermatogenesis? Spermatogenesis is the production of sperm cells through meiosis in the testes.
  47. What is the process of oogenesis? Oogenesis is the production of egg cells through meiosis in the ovaries.
  48. What is the role of FGF (fibroblast growth factor) in limb development? FGF signaling is involved in limb bud formation, growth, and patterning during embryonic development.
  49. What are the stages of embryonic development in humans? The stages of embryonic development in humans are cleavage, implantation, gastrulation, neurulation, organogenesis, and fetal development.
  50. What are some common congenital abnormalities related to embryonic development? Common congenital abnormalities include cleft lip and palate, neural tube defects, heart defects, and limb abnormalities. Viva Question and Answers Related to Vascular Supply of Head and Neck

 

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