How Do You Spell VALVULA FOSSAE NAVICULARIS?
Pronunciation: [vˈalvjʊlə fˈɒsiː navˈɪkjʊlˌɑːɹɪs] (IPA) 
Pronunciation: [vˈalvjʊlə fˈɒsiː navˈɪkjʊlˌɑːɹɪs] (IPA)
Valvula fossae navicularis is a Latin term used in anatomy to refer to a small triangular or semilunar fold of mucous membrane found in the urinary bladder. This anatomical structure is located near the neck of the bladder, which is the region where the urethra connects to it.
The valvula fossae navicularis functions as a valve, regulating the flow of urine between the bladder and the urethra. It is composed of a fold of elastic and smooth muscle fibers covered with mucous membrane. The structure is most prominent when the bladder is at rest, but it becomes less defined when the bladder is filled with urine.
When the bladder is empty, the valvula fossae navicularis may close, preventing urine from refluxing back into the bladder. However, as the bladder fills with urine, pressure increases and the valvula fossae navicularis usually opens to allow urine to flow into the urethra for elimination from the body.
The presence and functionality of the valvula fossae navicularis can vary among individuals. While it generally acts as a barrier to prevent urine reflux, there can be certain conditions where it may malfunction, leading to issues such as urinary incontinence or urinary tract infections. Understanding the anatomy and function of the valvula fossae navicularis is crucial in diagnosing and managing such conditions.
Guerin's fold, a fold of mucous membrane sometimes found in the roof of the fossa navicularis urethrae.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
