LAMINA CINEREA Meaning and
Definition
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The term "lamina cinerea" refers to a specific anatomical structure found in the brain. The lamina cinerea, also known as the gray plate or gray lamina, is a thin layer of gray matter located in the medial region of the brain, specifically within the hypothalamus. Gray matter represents areas in the central nervous system that contain mostly cell bodies, dendrites, and unmyelinated axons. This layer is characterized by its grayish color, as it lacks myelin, a white fatty substance that covers and insulates nerve fibers.
The lamina cinerea plays a crucial role in regulating various physiological functions within the body. It serves as an important part of the hypothalamic-pituitary axis, which is involved in controlling hormone secretion and influencing numerous bodily processes such as growth, metabolism, reproduction, and stress response. Additionally, the lamina cinerea is also associated with visceral regulation, coordinating autonomic functions like heart rate, blood pressure, body temperature, and thirst.
Overall, the lamina cinerea is an essential component of the brain's intricate neural circuitry, exerting significant control over hormonal and autonomic functions. Its location in the hypothalamus highlights its involvement in maintaining homeostasis and coordinating the body's responses to internal and external stimuli. Understanding the anatomy and function of the lamina cinerea contributes to our knowledge of the brain and its role in governing various physiological processes.
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A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for LAMINA CINEREA
- lamina cineree
- lamina cinerec
- laminacinerra
- lambinacinerea
- l amina cinerea
- la mina cinerea
- lam ina cinerea
- lami na cinerea
- lamin a cinerea
- lamina c inerea
- lamina ci nerea
- lamina cin erea
- lamina cine rea
- lamina ciner ea
- lamina cinere a
Etymology of LAMINA CINEREA
The term "lamina cinerea" has its roots in Latin. Here is a breakdown of the etymology:
1. Lamina: This Latin word means "a thin plate or layer". It is derived from the Proto-Italic root *slamo-, meaning "thin, flat board".
2. Cinerea: Also derived from Latin, "cinerea" means "ashen, gray". It comes from the Latin word "cinis", meaning "ashes".
When combined, "lamina cinerea" literally translates to "gray plate" or "gray layer". In the field of anatomy, it refers to a grayish area found in the brain.
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