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The transferrin receptor (TfR) is a transmembrane glycoprotein that is highly expressed on multiple cell types, apart from highly differentiated cells. Two forms of the receptor have been characterised to...

A vaccination is where tiny particles are introduced into the body to stimulate the immune system to defend itself against a micro-organism. Human Papilloma Virus (HPV) antigens are included in the HPV va...

This is through a mechanism called the countercurrent mechanism at the Loop of Henle that looks like a hair pin. It works by creating a concentration gradient between the nephron and the interstitium whic...

Starting in the right atrium, the sinoatrial node (SAN) will send a signal to contract both atria, opening the atrioventricular valves (tricuspidand bicuspid/mitral) and forcing blood in to both ventricle...

There are two aspects to consider to understand the difference between the central and peripheral nervous system. Anatomically speaking, the CNS is made up of the brain and the spinal cord; the PNS is mad...