Venula is spelled as /vɛnjuːlə/, with the first syllable "ven" pronounced as "ven," as in "ventilate." The second syllable "u" is pronounced in a similar way to "you," but with a shorter sound, and the final syllable "la" sounds like "luh." Venula is a medical term referring to a small vein in the human body. It is important to have the correct spelling of medical terms to avoid confusion and ensure proper communication between healthcare professionals.
A venula, often referred to as venules in plural form, is a small and narrow blood vessel that forms a part of the circulatory system in the human body. It functions as an intermediary between capillaries and veins, working to facilitate the transportation of deoxygenated blood from the capillaries back towards the heart.
Venulas are typically found at the end of a capillary network within various tissues and organs. They are characterized by their small diameter, which enables them to carry blood at a slower rate compared to arteries and veins. Due to their role in the microcirculation, venules play a crucial role in regulating blood flow and blood pressure in tissues. Their structure consists of a thin layer of endothelium, or inner lining, supported by a few layers of smooth muscle cells. This composition allows venules to constrict or dilate, thereby controlling the flow of blood and adjusting to the body's needs.
The blood within venules has a dark reddish appearance since it contains waste products and carbon dioxide that need to be transported back to the heart and lungs for oxygenation. After passing through the venular network, blood ultimately enters the larger veins, which carry it back to the heart for recirculation. Venulas are an integral part of the body's cardiovascular system, ensuring the proper functioning and continuous circulation of blood throughout the body's organs and tissues.
Venule, veinlet, a minute vein, a venous radicle continuous with a capillary.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The word "venula" is derived from the Latin term "venula", which means "little vein". It is the diminutive form of "vena", meaning "vein". The term "venula" is used in anatomy to refer to the small veins that branch out from larger veins and distribute blood throughout various parts of the body.