How Do You Spell SEPTUM POSTICUM?

1. Septum posticum refers to a anatomical structure commonly found in certain animals, specifically mammals, that separates the sinus venosus from the atrium, or right atrium, in the heart. It is notable for being a part of the embryonic cardiovascular system, and it aids in the proper functioning and circulation of blood within the heart.

   The septum posticum is a muscular wall or partition composed of cardiac muscle fibers, and it is primarily found in animal species such as reptiles, birds, and mammals, including humans. It essentially acts as a barrier between the sinus venosus, a chamber that collects deoxygenated blood, and the atrium, a chamber that receives oxygenated blood from the body.

   During embryonic development, the septum posticum undergoes significant morphological changes as the heart takes shape. It plays a crucial role in directing blood flow in the heart, ensuring that oxygenated and deoxygenated blood are kept separate. The septum posticum ultimately contributes to the efficient and proper functioning of the heart's pumping mechanism.

   In human anatomy, the septum posticum is a key component of the evolving heart during embryonic development. However, as the heart matures, this structure regresses and is eventually replaced by the formation of various other features, such as the foramen ovale and the interatrial septum, which play important roles in the adult human heart.

2. The fibrous membrane joining the arachnoid and pia along the posterior line of the spinal cord.

   A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.

Common Misspellings for SEPTUM POSTICUM

The word "septum" comes from the Latin term "septum", which means "a partition or a fence". It is derived from the Latin verb "sepire", meaning "to enclose" or "to separate". "Posticum" is also a Latin term, which translates to "at the back" or "behind".

The term "septum posticum" refers to the membranous partition or wall located at the back of the nasal cavity, separating it from the nasopharynx. It is commonly known as the posterior nasal septum.

In medical terminology, Latin and Greek roots are frequently used to describe various anatomical structures, including the nasal septum. These terms have been in use for centuries and provide a standardized way to refer to specific body parts across different languages.