BIOS 256 Week 7 Discussion; Endocrine System
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$15.00
| Institution | BIOS 256 Anatomy And Pysiology IV With Lab |
| Contributor | Kimberlee |
BIOS 256 Week #7 Discussion 3 major prenatal period: - Germinal period Embryonic period Fetal period 1) Germinal period: - this is for 2 weeks. Zygote forms after fertilization which after passing through fallopian tube, get implanted on uterus. 2) embryonic period: - this is from 3 weeks to 8 weeks. Most major organs like heart, brain etc. form in this stage. Basic structure of eyes, ears, nose, mouth form in this stage. 3) fetal period: - it is from 9 weeks till birth. It is final stage. In this, elaborate development of brain and nervous system occur. Sex organs of fetus also develop in this stage. Extraembryonic membrane develops from: - Ectoderm forms inner layer of amnion. Mesoderm form chorion, outer membrane of amnion, umbilical cord. Endoderm form yolk sac and allantois. There
| Instituition / Term | |
| Term | Year 2022 |
| Institution | BIOS 256 Anatomy And Pysiology IV With Lab |
| Contributor | Kimberlee |
