Tag Archives | Living Organisms

Extraembryonic Structures and Chick Embryo | Embryology

In this article we will discuss about:- 1. Meaning of Extraembryonic Structures in Chick Embryo 2. Formation of Yolk Sac and its Fate 3. Formation of Amnion and Serosa 4. Formation of Allantois. Meaning of Extraembryonic Structures in Chick Embryo: The embryo of chick possesses four extra­embryonic or foetal membranes: namely, the yolk sac, the allantois, the amnion and the [...]

By |2016-10-13T19:29:47+00:00October 13, 2016|Embryology|Comments Off on Extraembryonic Structures and Chick Embryo | Embryology

Gastrulation: Meaning, Mechanism and Methods

In this article we will discuss about:- 1. Meaning of Gastrulation 2. Basic Mechanism in Gastrulation 3. Methods 4. Morphogenetic Movement 5. Different Chordates 6. Analysis of Mechanism. Contents: Meaning of Gastrulation Basic Mechanism in Gastrulation Methods used to Study Gastrulation Morphogenetic Movement of Cells in Gastrulation Gastrulation in Different Chordates Analysis of Gastrulation Mechanism 1. Meaning of Gastrulation: The [...]

By |2016-10-13T19:29:47+00:00October 13, 2016|Embryology|Comments Off on Gastrulation: Meaning, Mechanism and Methods

Movement of Living Organisms

In this article we will discuss about:- 1. Movements of Body Parts in Living Organism 2. Types of Movement in Living Organism. Movements of Body Parts in Living Organism: All the animals are able to move their body parts. (a) Movements of External Body Parts: These serve many purposes: (i) Movements of limbs, appendages, head and trunk help to maintain [...]

By |2016-09-06T07:53:54+00:00September 6, 2016|Living Organism|Comments Off on Movement of Living Organisms
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