Question

Lymph drains excess fluid from extracellular space back into
A. Blood
B. Lymph node
C. Lymphatic channel
D. Lymph gland

Answer 1

Hint: Lymph is a clear-to-white liquid made up of cells that kill bacteria in the blood: white blood cells, particularly lymphocytes. Chyle, a fluid from the intestines, comprises proteins and fats. The lymphatic system's main function is to distribute lymph across the body, a fluid containing infection-fighting white blood cells.

Complete answer:
Small structures that serve as barriers for toxic substances are lymph nodes. A network of delicate tubes in the body is the lymphatic system. Substances that pass via the lymphatic fluid are filtered by lymph glands and contain lymphocytes (white blood cells) that help the body combat infection and illness.
A colourless fluid and connective tissue is lymph. It brings back to the venous system an excess of extracellular fluid or it extracts the excess fluid from the tissue and returns it to the blood. As lymphatic ducts form, lymphatic capillaries join and form lymphatic vessels. There are two kinds: the thoracic duct and the right lymphatic duct. Lymph nodes or lymph glands are a small bean-shaped lymphatic organ surrounded by fibrous connective tissue that carries fluid between the body, nutrients, and waste content.
So, the correct answer is “Option A”.

Note:
 If it has provided its nutrients and unconcerned debris, plasma leaves the body's cells. Via tiny blood vessels called venules, much of this fluid returns to venous circulation and continues as venous blood. The Lymph becomes the remainder. Unlike blood, which flows in a continuous loop around the body, lymph flows upward toward the neck in just one direction.