Introduction to Human General Embryology Developmental Genetics


SECTION C REVISION QUESTIONS



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Summary Notes in Gen Embryology
SECTION C
REVISION QUESTIONS
Instructions: Fill in the gaps provided with the appropriate answers. Answers with spelling errors shall be regarded as wrong answers. Your answers must be specific.



  1. Nucleus Pulposis develops from .

  2. Annulus Fibrosis develops from

  3. Sclerotome is a part of the .

  4. Yolk Sac develops

  5. Amnioblast is developing .




  1. Fetal part of the placenta develops from

  2. Heuser’s membrane refers to

  3. Extraembryonic coelom develops within the .

  4. Dermomyotome is a part of the .

  5. Determination of Embryonic age within the first 8 weeks is based on .


  1. The number of developing oocytes in the ovary at puberty ranges between .

  2. The shape of the developing embryo is determined by . ..

  3. The second polar body is released after the completion of .

  4. Meiotic divisions during spermatogenesis begins at

  5. At the cervix, this hormone positively affects sperm transport ..




  1. Which hormone do the follicular cells release during Oogenesis? .

  2. Theca interna and externa are subdivisions of the. ..

  3. Just before ovulation, cells surrounding the Oocyte are called ..

  4. HcG maintains the existence and function of the ..

  5. Restoration of the diploid number of chromosomes occurs during ..




  1. Acrosme reaction implies the ‘removal’ of the

  2. The developing embryo implants into the endometrium using the..

  3. After implantation, the point of entry into the endometrium . .

  4. The embryoblast is otherwise called the

  5. This part of the trophoblast is accelular ..




  1. The Heuser’s Membrane surrounds the ..

  2. The extraembryonic coelom is otherwise the ..

  3. This primordial structure gives rise to the umbilical cord ..

  4. This part of the embryoblast gives rise to the yolk sac ..

  5. This phase of the menstrual cycle is influence by progesterone




  1. This structure facilitates the transport of the ova ..

  2. This structure signals the beginning of 3rd week events .

  3. This structure induces neurulation .

  4. Somites are derived from the.. .

  5. These are the subdivisions of somite .. .




  1. The parts of the intervertebral disc are derived from ..

  2. Fetal age can be determined using the . ..

  3. Embryonic axis is determined during

  4. Embryonic shape is determined during

  5. Ectoderm is subdivided into ..




  1. Mesoderm is subdivided into .

  2. The walls of the uterine cavity are... .

  3. Corona radiata represents ..

  4. Pigment cells are derived from .

  5. Sperm-Zona pellucida binding induces .




  1. Sperm-Oocyte binding induces .

  2. Gonads develop from this layer of the trilaminar embryo .

  3. Dura mater develops from this layer of the trilaminar embryo ..

  4. The Brain develops from ..

  5. Ganglia cells develops from




  1. Saccrococcygeal teratoma is due to persistence of the ..

  2. The primitive Gut tube is formed during .. .

  3. Buccopharyngeal membrane separates the gut from the .

  4. Stomodeum is the primitive

  5. Proctodeum is the primitive




  1. Structure connecting the body with its ‘outside environment’ usually develops from

  2. Muscles usually develop from

  3. The period of human development from the beginning of the 9th week is termed ....

  4. Placenta is fully developed and functional by the . .

  5. Seizure in hormone secretion and cellular necrosis is associated with this phase of the menstrual cycle






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