Fine-needle aspiration. Fine-needle aspiration (FNA), or fine-needle aspiration cytology (FNAC), is a diagnostic procedure used to investigate lumps or masses. In this technique, a thin (23-25 gauge), hollow needle is inserted into the mass for sampling of cells that, after being stained, will be examined under a microscope.
The function of the blood is mainly transportation. the blood leaves the left side of the heart oxygenated and full of nutrients which is then transported around the body via â¦ arteries and veins. Blood is 50% plasma which is a straw coloured liquid.he function of blood is to absorb the nutrients that the body needs. Also to transport things to various tissue of the body, to remove things from the tissue in the body. Hop â¦ e This Helps(: + 11 others found this useful.
Several functions of blood are :  (a) Blood absorbs the food-constituents from the food canal and distributes them to the tissues. The changes undergone by the food in different workshops enable the food constituents to mix with the blood. (b) Blood absorbs the oxygen contained in the air, which is.verall, blood performs the following functions:   1. Transports oxygen from the lungs to body tissues and transports  the waste products of cellular metabolism and nutri â¦ ents, hormones  and enzymes.   2. Regulates blood clotting, body temperature, acid-base balance,  water and electrolytes.