Seldinger technique
A method of percutaneous insertion of a catheter into a blood vessel or space, such as an abscess cavity: a needle is used to puncture the structure and a guide wire is threaded through the needle; when the needle is withdrawn, a catheter is threaded over the wire; the wire is then withdrawn, leaving the catheter in place.
A sensory system is a part of the nervous system consisting of sensory receptors that receive stimuli from the internal ..
The gastrointestinal system breaks down particles of ingested food into molecular forms by enzymes through digestion and..
The sequence of amino acids determines the type of protein. Protein is synthesized according to the sequence of nucleoti..
Gregor Mendel's studies into Monohybrid and Dihybrid crossing and Charles Darwin's study of evolution and natural select..
In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..
This tutorial describes the different types and causes of brain damage. Find out how genetics, physical injury, lack of ..