'Neural tube forms' diaporamas de présentation

Prenatal Development

1.61k views • 37 slides

Derivatives of Germ layers

Derivatives of Germ layers. Dr Rania Gabr. Objectives. By the end of this lecture ,the student should be able to: Explain the results of folding List the derivatives of ectoderm List the derivatives of endoderm List the derivatives of mesoderm. Results of folding.

507 views • 33 slides

Pregnancy, Birth, and Childhood

Pregnancy, Birth, and Childhood. Development Before Birth. The Beginning of the Life Cycle. During sexual intercourse sperm are deposited into the vagina. If a egg is on its way to the uterus, a sperm may fertilize it. This moment of fertilization is called conception.

431 views • 28 slides

Chapter 12- CNS and epidermis

Now we focus on individual lineages. Chapter 12- CNS and epidermis. Recall lineages. Ectoderm-skin/nerves. Mesoderm-Blood, heart, kidney, bones. Endoderm- Gut and associated organs. Ectoderm has three fates. Epidermis (skin). 1.Epidermis. Peripheral neurons, facial cartilage.

445 views • 12 slides