How Do You Spell ARTERIA SPINALIS POSTERIOR?

Pronunciation: [ɑːtˈi͡əɹɪə spɪnˈɑːliz pɒstˈi͡əɹɪə] (IPA)

The spelling of the medical term "arteria spinalis posterior" can be broken down using the International Phonetic Alphabet (IPA). The first word, "arteria," is pronounced /ɑːtɪərɪə/, with emphasis on the second syllable. The following words, "spinalis posterior," are pronounced /spaɪˈneɪlɪs/ /pɒsˈtɪərɪə/, with emphasis on the first syllable of each word. "Spinalis" is pronounced with a long "i" sound in the second syllable, and "posterior" is pronounced with a short "o" sound in the first syllable.

ARTERIA SPINALIS POSTERIOR Meaning and Definition

1. The arteria spinalis posterior is a medical term referring to the posterior spinal artery. It is an artery that forms part of the arterial blood supply to the spinal cord. The term "arteria spinalis posterior" is derived from Latin, where "arteria" translates to artery, "spinalis" relates to the spine, and "posterior" refers to the back or rear region.

   The arteria spinalis posterior arises from the vertebral arteries, which are major arteries originating from the subclavian arteries in the chest. It typically consists of two separate branches that run down the posterior surfaces of the spinal cord. These branches follow the midline of the spinal cord and join together in the lower regions.

   The primary function of the arteria spinalis posterior is to supply oxygenated blood to the posterior portion of the spinal cord, including the posterior horns and the posterior columns. This arterial supply is crucial to maintain the metabolic demands of the spinal cord, which is responsible for transmitting nerve signals between the brain and the rest of the body.

   In cases where the arteria spinalis posterior becomes occluded or damaged, it can lead to a condition called posterior spinal artery syndrome. This syndrome typically presents with symptoms such as loss of proprioception (the sense of body position), loss of vibration sense, and impaired coordination.

2. Origin, vertebralis; distribution, medulla, spinal cord, and pia mater; anastomoses, spinal branches of intercostales.

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

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