In this article we will discuss about the changes that take place in the fetal circulation of blood at birth: 1. Primary Changes in Pulmonary and Systemic Vascular Resistance 2. Closure of the Foramen Ovale 3. Closure of the Ductus Arteriosus 4. Closure of the Ductus Venosus. 1. Primary Changes in Pulmonary and Systemic Vascular Resistance: First, loss of the [...]
In this article we will discuss about the structure of lymph node with the help of suitable diagrams. Also learn about its functions. Lymph node is small, oval or bean-shaped body. It is a collection of lymphoid tissue enclosed in a connective tisÂsue capsule and lying along the lymphatic stream. From the capsule, strands of tissue pass into the substance [...]
In this article we will discuss about the structure of spleen with the help of suitable diagram. Also learn about its functions. Spleen (lien) is the largest lymphoid tissue in the body and specialised, been-shaped organ for filtering blood. It is a highly vascular haemopoietic organ situated in the left hypochondrium directly beneath the diaphragm, above the left kidney and [...]