Chapter 1 : General embryology: 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Embryology definition Kaspar Wolff Von BaerBody Composition a. Cell b. Intracellular substance c. Fluid Structures if the cell a. Cell nucleus i. DNA AND RNA b. Cell cytoplasm c. ER d. Ribosomes e. Golgi complex f. Lysosomes g. Mitochondria h. Peroxisomes i. Centrioles/diplosomes j. Cytoskeleton k. Filaments Human tissues: a. Epithelial i. Simple (squamous, cuboidal, columnar) ii. Pseudostratified iii. Stratified b. Connective i. Fibrous tissue in lamina propria ii. Areolar tissue iii. Fat tissue iv. Hemopoietic tissue v. Cartilage vi. Bone Nervous tissue a. CNS-brain, spinal cord b. PNS- nerves Muscular a. Smooth muscle b. Striated i. Voluntary ii. Involuntary Primary germ layers a. Ectoderm b. Endoderm c. Mesoderm Neural crest cells Mesoderm a. Paraxial-adjacent to neural tube b. Intermediate- relocated; forma urogenital tissue c. Lateral plateEndoderm-forms gut a. Foregut b. Mid gut c. Hind gut 13. Growth and development a. Growth b. Development 14. Cellular production a. Mitosis b. Meiosis(Gametogenesis) 15. Insemination 16. Sex cells a. Ova i. Corona radiata ii. Zona pellucida b. Spermatozoa i. Head ii. Neck iii. Body iv. Tail 1. Chief piece 2. End piece c. 2 kind of sperm cells i. Gymnosperm-X carrying ii. Androsperm- Y carrying Fertilization and cleavage 17. Ovulation-period of discharge 18. Morula- balls of cells produces by the cleavage of zygote. Resembles mulberry 19. Blastocyst-> embryoblast(inner); trophoblast(outer layer) 20. Embryoblast- formed by ¼ of cells of the egg cell mass 21. Fertilization is also called a. Conception b. Impregnation c. Fecundation 22. Fertilized ovum- 46 chromosomes 23. Ovum- from ovulation to ferti24. Zygote- from fertili- to implant25. Fetus-from 5-8 weeks until term 26. Conceptus- developed embryo or fetus Twins 27. Identical 28. Fraternal 29. Factors that increase the odds of having twins a. Advancing age of the motherb. Number of previous pregnancies c. Heredity d. Race e. Assistive reproductive technique