Pronunciation: [zˈə͡ʊnə mˌɛmbɹɐnˈe͡ɪsi͡ə] (IPA) 
Correct spelling for the English word "zona membranacea" is [zˈə͡ʊnə mˌɛmbɹɐnˈe͡ɪsi͡ə], [zˈəʊnə mˌɛmbɹɐnˈeɪsiə], [z_ˈəʊ_n_ə m_ˌɛ_m_b_ɹ_ɐ_n_ˈeɪ_s_iə] (IPA phonetic alphabet).
Zona membranacea, also known as the membranous zone, is a specialized region or area within a biological structure that is characterized by the presence of a membrane. The term is commonly used in various scientific disciplines, particularly in the fields of biology, anatomy, and medicine.
In biological systems, membranes play a crucial role in separating and compartmentalizing different parts or components of a cell or organism. They provide a physical barrier that controls the movement of substances in and out of the region they enclose. The zona membranacea refers to a specific region within a cell, tissue, or organ where such a membrane is present.
This term can be applied to various structures in different organisms. For instance, in embryology, the zona membranacea refers to the outer membrane surrounding the yolk sac during early development in certain animal species. In the context of anatomy, it can describe a membranous region within an organ or tissue, such as the zona membranacea of the thyroid gland.
The presence of a zona membranacea often indicates a specialized function or physiological process occurring within the region. These membranes may have specific characteristics, such as selective permeability or the presence of specific proteins, which enable them to perform their intended functions.
In summary, the term zona membranacea refers to a specific region or zone within a biological structure that is demarcated by the presence of a membrane. It is a term commonly used in different scientific disciplines to describe various membranous regions within cells, tissues, or organs of organisms.
Membrana basilaris.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
The phrase "zona membranacea" consists of two words from Latin.
1. "Zona" - This word translates to "zone" or "belt" in English. It is derived from the Greek word "zōnē", which also means "a belt" or "a girdle". In both languages, "zona" typically refers to a specific area or region.
2. "Membranacea" - This term is the feminine form of the Latin word "membranaceus", which means "membranous" or "thin like a membrane". It is related to the Latin word "membrana" meaning "membrane" or "thin layer".
Therefore, when combined, "zona membranacea" translates to "membranous zone" or "belt-like membrane" in English.
