Principles of embryology

<p>Teratogens</p> Signup and view all the answers

<p>Embryonic folding</p> Signup and view all the answers

<p>Cleavage</p> Signup and view all the answers

<p>Organogenesis</p> Signup and view all the answers

<p>Apoptosis</p> Signup and view all the answers

<p>Folding/rotation</p> Signup and view all the answers

<p>All of the above</p> Signup and view all the answers

<p>Cell migration</p> Signup and view all the answers

<p>Differentiation</p> Signup and view all the answers

<p>Axis formation</p> Signup and view all the answers

<p>All of the above</p> Signup and view all the answers

<p>Fertilisation</p> Signup and view all the answers

<p>Ectoderm, mesoderm, endoderm</p> Signup and view all the answers

<p>Spermatogenesis occurs at puberty and continues throughout life</p> Signup and view all the answers

<p>Mutagens</p> Signup and view all the answers

<p>Fetal period</p> Signup and view all the answers

<p>Cell division plays a crucial role in embryonic development as it leads to the formation of a morula and then a blastocyst. It is during this period of rapid mitotic cell division that the embryo increases in size and develops.</p> Signup and view all the answers

<p>Cell differentiation is the process by which unspecialized cells become specialized into different cell types. This process is essential for the formation of various tissues and organs in the developing embryo.</p> Signup and view all the answers

<p>Cell attachment refers to the adhesion of cells to each other and to the extracellular matrix. It is crucial for the proper organization and structural integrity of tissues and organs during embryonic development.</p> Signup and view all the answers

<p>Apoptosis is the programmed cell death of cells. It plays a vital role in sculpting and refining the developing embryo by eliminating unnecessary or abnormal cells, shaping the organs, and creating precise tissue boundaries.</p> Signup and view all the answers

<p>Induction is the process by which one group of cells influences the development of neighboring cells, leading to changes in their fate or behavior. It plays a crucial role in determining cell differentiation and the formation of specific tissues and organs.</p> Signup and view all the answers

<p>The main processes involved in embryonic development are cell division, differentiation, cell attachment, apoptosis, induction, and cell migration.</p> Signup and view all the answers

<p>The secondary processes of embryonic development include axis formation, folding/rotation, and cell migration.</p> Signup and view all the answers

<p>The regulation of embryonic development is influenced by genetic, epigenetic, and environmental factors.</p> Signup and view all the answers

<p>Substances that cause changes in the genetic material of cells are known as mutagens.</p> Signup and view all the answers

<p>The movement of cells from one location to another during embryonic development is called cell migration.</p> Signup and view all the answers

<p>A gamete is a mature haploid male or female germ cell which is able to unite with another of the opposite sex in sexual reproduction to form a zygote.</p> Signup and view all the answers

<p>The embryonic period is the period of development between weeks 3 and 8 in humans.</p> Signup and view all the answers

<p>A teratogen is a substance that can cause irreversible, deleterious structural malformations in fetuses.</p> Signup and view all the answers

<p>A mutagen is a substance that can cause changes (mutations) in the genetic material of cells.</p> Signup and view all the answers

<p>The phases of embryogenesis are: 1. Gametogenesis 2. Fertilisation 3. Cleavage 4. Gastrulation 5. Embryonic folding 6. Organogenesis 7. Fetal period.</p> Signup and view all the answers