Question

Lymphatic capillaries join to form
A) Lymph nodes
B) Lymph vessels
C) Lymph glands
D) Lymphoid tissues

Answer 1

Lymph or lymphatic capillaries are tiny thin-walled vessels, closed at one end and located in the spaces between cells throughout the body, except in the central nervous system and non-vascular tissues. Lymphatic capillaries are to some extent larger in diameter and have greater oncotic pressure than blood capillaries.

Complete answer:
Lymph or lymphatic capillaries are minute thin walled vessels closed at one end and to be found in the spaces between cells throughout the body. These are predominantly dense within connective tissue. Lymphatic capillaries are to some extent larger in diameter than blood capillaries.
Lymphatic capillaries are chiefly made out of an endothelium layer that sits on a porous basement membrane. Lymphatic capillaries do not have smooth muscle, nor do they have a well-developed adventitia they have only small elastic filaments that perform a parallel function.
Function of Lymphatic Capillaries
The lymph capillaries serve a variety of important functions. They include the following

1. Fluid pressure regulation
2. Edema prevention
3. Drive lymph through lymphatic vessels
   Lymphatic vessels are thin walled endothelial-lined channels that start off near the capillary beds and offer as a drainage system for returning interstitial tissue fluid and inflammatory cells to the blood. Afferent lymphatic vessels sap lymph into regional lymph nodes which then filter and supply immunologic surveillance of the lymph their cells, and the foreign matter it contains. The filtered lymph continues into bigger efferent lymphatic vessels, which ultimately drain into the caval blood through the thoracic duct. Both the lymphatic vessels and veins have valves to prevent backflow.So as a final we can conclude that the lymphatic capillaries join to form lymphatic vessels which are very thin walled structures and which originate from the capillaries.

Hence the correct answer is option (B) lymph vessels.

Note: The lymphatic system helps to keep body fluid levels in balance and to protect the body against infections. It is made up of a set of connections of lymphatic vessels that carry lymph which is a clear watery fluid that contains proteins, salts, and other substances all over the body.