Category: Anatomy and Physiology

A spermatozoon is a highly specialized, free swimming, actively motile cell which measures about 60 µm in length. The spermatozoon is made up of three...

It is seen that a part of the distal convoluted tubule (at the junction of its straight and convoluted parts) lies close to the vascular...

Outside the brain and spinal cord there are aggregations of cell bodies of neurons called ganglia. There are two main types of ganglia. They are...

• The term was coined by an American physiologist Walter Cannon in 1932 AD. • It is defined as the tendency of biological systems to...

It is the largest gland of our body. It weighs between 1 to 2.3 kg which is situated in the upper right part of the...

Human teeth are thecodont, diphyodont and heterodont. They are borne by the premaxillae of upper jaw and mandibles of lower jaw. They are found embedded...

Breathing is a physical process of taking or inhaling the fresh air in and expelling CO2 out. It is accomplished through changes in the volume...

Human heart is a roughly triangular structure and a muscular organ. It is situated in the thoracic cavity between the two lungs. One third of...

The central nervous system consists of two parts. They are – a)Brain and b)Spinal cord A)Brain It is highly specialized delicate organ of the human...

Introduction to heart sound With each heart-beat, the detectable heart sounds are produced. These sounds represent the auscultatory events of the cardiac cycle. Heart sounds...