Identify major tissues and organs that arise from the ectoderm, the mesoderm, and the endoderm in an embryo.

Q: Define embryology

A: Embryology can be defined as the branch of biology which deals with the study of the embryo. It…

Q: Discuss the process of gastrulation and embryonic folding?

A: Gastrulation is the process of cell relocation and distinction into three primary germ layers…

Q: List the four primary tissue types of the adult body and identify which of the three primary germ…

A: A tissue is defined as a group of cells which are having a similar structure and are organized to…

Q: Give the origins and functions of the chorion, amnion, allantois, and yolk sac.

A: The extraembryonic membrane can be defined as the type of membrane which helps in the development of…

Q: Explain why the embryonic period is so important.

A: The embryonic stage of gestation is that the amount once implantation, throughout that all of the…

Q: Describe the processes of fertilization, embryonic development, fetal development, and birth.

A: Answer- Every organism reproduces for their continuity of species. In sexual mode of reprodution the…

Q: Describe briefly amniocentesis and its purpose.

A: The process of fertilization includes a sperm (male gamete) fusing with an ovum (female egg). In…

Q: Identify the organ systems that are formed from each of the primary germ layers.

A: Endocrine System is the organ system that is formed from each of the primary germ layers.

Q: Name the three primary germ layers and explain how they develop in the embryonic disc?

A: Once the implantation has successfully taken place, the cells start to divide and develop into an…

Q: State the functions of the placenta, amnion, chorion, yolk sac, and allantois?

A: The placenta is developed during pregnancy in the uterus. It provides oxygen and nutrients to the…

Q: The surface that enables active and passive exchange between the fetal and maternal bloodstreams is…

A: Answer is b.)  chorionic villi.

Q: Briefly describe viviparity and ovoviviparity and compare the embryo's source of nourishment, their…

A: There are  two different methods of fertilization of male and female gametes. It is external…

Q: Which embryonic germ layer lines the outer surface of the embryo

A: An embryo is the early stage of human development in which organs form critical body structures.

Q: Describe the major events that transform a fertilized egg into an embryo?

A: BASIC INFORMATION  FERTILIZATION  It is the process of the fusion of the male as well as the female…

Q: The outer layer of the blastocyst, which attaches to the uterine wall, is the (a) yolk sac, (b)…

A: After fertilization, when the embryo reaches the fifth or sixth day, blastocysts' formation occurs.…

Q: During the formation of mesoderm and its derivative structures and tissues, several of the five…

A: Step 1 The mesoderm is the third germinal layer that appears in the third week of embryonic…

Q: List the five regions of the mesoderm, and identify some major body parts derived from each region.

A: One of the three germ layers that lie between the other two germ layers called the ectoderm, and the…

Q: Describe the fertilization process and how an egg prevents fertilization by more than one sperm?

A: The reproductive system of the body is one of the important systems of the human body which ensures…

Q: Explain the process of embryological development?

A: The process of formation of a newborn initiates with the process of copulation that involves the…

Q: How do the somites, intermediate mesoderm, and lateral plate mesoderm contribute to embryonic…

A: The early stages in the case of embryonic development start with fertilization. The fertilization…

Q: Into which structures do the trophoblast cells of the developing embryo, differentiate?   a)   The…

A: The fusion of male and female gamete produces zygote. This process is known as fertilisation. Zygote…

Q: Describe the development of the amnion, chorion, and allantois.

A: An extra-embryonic membrane is one of the layers which aid the development of the undeveloped…

Q: Identify the tissues that form the placenta.

A: An organ that develops during pregnancy and attaches to the uterus wall, known as the placenta,…

Q: List and describe the phases of embryonic development; from a zygote through gastrulation.  What…

A: Reproduction is the process of the formation of offspring from their parents. There are two modes of…

Q: Distinguish between modes of mesoderm formation

A:

Q: Name the embryonic membranes and give the importance of each

A: Embryonic membranes are the membranes that lead to the development of the embryo in the mother's…

Q: Classify and diagram embryos on the basis of their: (a) yolk content, (b) cleavage types, (3)…

A: Cleavage in animals is depends upon amount of yolk. Yolk distribution can be complete ( holoblastic…

Q: Represent diagramatically different stages of fertilization.

A: Since the question do not specify any particular organism for the process of fertilization.…

Q: Name the three embryonic tissue layers of vertebrate embryos,and describe the process by which they…

A: Gastrulation is the cycle where differentiated cells from the zygote move to their particular areas.…

Q: Contrast embryonic development with fetal development.

A: Embryology is the branch of biological sciences that studies the formation and development of…

Q: Identify the structures of an egg and a sperm that aredirectly involved in fertilization.

A: Fertilization is that the method by that the male and also the female gametes (sperms and therefore…

Q: Define ectoderm and andoderm?

A: Except the sponges, the growing embryo in all animals develops different layers of cells called as…

Q: Write about the features and functions of a) the placenta and b) the different types of embryonic…

A: FEATURES AND FUNCTIONS OF PLACENTA Post implantation, the nutrition to the placenta for first few…