Tag Archives | Vertebrates

Metamorphosis in Amphibians | Vertebrates | Embryology

In this article we will discuss about:- 1. Introduction to Metamorphosis in Amphibians 2. Causation of Metamorphosis in Amphibians 3. Tissue Reactivity 4. Induction. Introduction to Metamorphosis in Amphibians: In amphibians, metamorphosis is associated in typical cases with a transition from an aquatic to a terrestrial mode of life. Super-imposed on this change in environment, there is in the anurans [...]

By |2018-04-30T10:44:13+00:00April 30, 2018|Metamorphosis|Comments Off on Metamorphosis in Amphibians | Vertebrates | Embryology

General Body Form of Vertebrates | Embryology

In this article we will discuss about the development of general body form of vertebrates. While the various organs are being formed, the shape of the embryo as a whole undergoes far-reaching changes. During the period of organogenesis, in the case of the vertebrate embryo, the main changes are: i. Elongation of the body. ii. Formation of the tail. iii. [...]

By |2018-04-30T10:44:13+00:00April 30, 2018|Organogenesis|Comments Off on General Body Form of Vertebrates | Embryology

Development of Mouth in Vertebrates | Endodermal Organs |Embryology

In all vertebrates, the mouth opening appears rather late in embryonic life after all the primary organ rudiments have already been formed. The mouth opening breaks through where the anterior end of the endodermal part of the alimentary canal touches the ectodermal epidermis beneath the front end of the neural tube. Here the ectodermal epidermis sinks in to form a [...]

By |2018-04-30T10:44:12+00:00April 30, 2018|Endodermal Organs|Comments Off on Development of Mouth in Vertebrates | Endodermal Organs |Embryology