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...

It is a protective outer covering sheath that envelopes the cell body. It is known by other name called plasma lemma and plasma membrane. It...

The cellular organelle present throughout the cytoplasm is called cytoskeleton. The shape of the cell is determined by it and also gives support to the...

The supporting cells of the nervous system that are non-excitable are called neuroglia or simply glia (glia=glue). They do not transmit nerve impulse (action potential)...

Platelets also called thrombocytes are the formed elements of blood. They are small, non-nucleated colorless and moderately refractive bodies. They are considered to be the...

The rate at which the red blood cells or erythrocytes settle down is called ESR or erythrocyte sedimentation rate. In normal condition, red blood cells...

Skin is the largest of all the organ of our body that is not uniformly thick. It is thick at some places and at some...

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...