Podcast
Questions and Answers
What is the main criterion used in dividing the human embryonic period into Carnegie stages?
What is the main criterion used in dividing the human embryonic period into Carnegie stages?
- Age in days
- Embryonic length
- Morphological features (correct)
- Number of somites present
In the context of embryonic development, what do Carnegie stages primarily focus on?
In the context of embryonic development, what do Carnegie stages primarily focus on?
- Number of cell divisions undergone by the embryo
- Exact age of the embryo
- Morphological development of the embryo (correct)
- Physical size of the embryo
What is the role of somites in determining Carnegie stages?
What is the role of somites in determining Carnegie stages?
- Gastrulation process
- Age determination
- Size of the embryo
- Morphological development (correct)
Which of the following is NOT a factor considered when classifying human embryonic development into Carnegie stages?
Which of the following is NOT a factor considered when classifying human embryonic development into Carnegie stages?
What key aspect of embryonic development is directly tied to the division into Carnegie stages?
What key aspect of embryonic development is directly tied to the division into Carnegie stages?
What is the function of acrosin and neuaminidase during fertilisation?
What is the function of acrosin and neuaminidase during fertilisation?
What is the purpose of the zona reaction during fertilisation?
What is the purpose of the zona reaction during fertilisation?
What happens to the tail of the sperm during fertilisation?
What happens to the tail of the sperm during fertilisation?
What is the result of the fusion of female and male pronuclei during fertilisation?
What is the result of the fusion of female and male pronuclei during fertilisation?
What is the primary function of trophoblast during early human embryonic development?
What is the primary function of trophoblast during early human embryonic development?
What event marks the beginning of implantation in human embryonic development?
What event marks the beginning of implantation in human embryonic development?
During which period of human development do all major organs form?
During which period of human development do all major organs form?
At what stage does the heart start pumping in a developing human embryo?
At what stage does the heart start pumping in a developing human embryo?
Which type of developmental abnormalities usually involve small DNA mutations affecting individual or a few genes?
Which type of developmental abnormalities usually involve small DNA mutations affecting individual or a few genes?
Which of the following is a major chromosomal abnormality characterized by an extra chromosome 21?
Which of the following is a major chromosomal abnormality characterized by an extra chromosome 21?
Which term refers to abnormalities derived from lifestyle, environment, and nutrition during pregnancy?
Which term refers to abnormalities derived from lifestyle, environment, and nutrition during pregnancy?
At what stage in human development are all major organs already in place?
At what stage in human development are all major organs already in place?
