Thyroid gland: Histology and Hormones

An endocrine gland situated at the root of the neck, one on either side of the trachea. Bi-lobed, connected to each other by an isthmus....

Renal Failure: Introduction and Types

Renal failure is the failure of the kidney related to excretory functions. It is generally understood as decrease in glomerular filtration rate (GFR) for which...

Mononuclear Phagocyte System

There are a series of cells that are distributed throughout the body that have shared the property of being able to phagocytose unwanted matter entering...

Nephron: Introduction and Structure

The structural and functional unit of kidney is called nephron. There are millions of nephrons (1-1.3 million) in each kidney. The count of nephron decreases...

Nucleus: Structure and Functions

It is one the most important and largest cellular organelle which has a diameter of 10 µm to 22µm occupying about 10% of total volume...

Development of the Ear

There are three morphological divisions of the ear. They are: the external, middle and internal ear. These all divisions have a separate origin. Internal ear...