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The hexaxial reference system is a diagram that is used to determine the heart's electrical axis in the frontal plane.. In electrocardiography, left axis deviation (LAD) is a condition wherein the mean electrical axis of ventricular contraction of the heart lies in a frontal plane direction between −30° and −90°.
The macron is called kahakō, and it indicates vowel length, which changes meaning and the placement of stress. Māori. In modern written Māori, the macron is used to designate long vowels, with the trema mark sometimes used if the macron is unavailable (e.g. "wähine"). [6] The Māori word for macron is tohutō. The term pōtae ("hat") is ...
Ā, lowercase ā ("A with macron"), is a grapheme, a Latin A with a macron, used in several orthographies.Ā is used to denote a long A.Examples are the Baltic languages (e.g. Latvian), Polynesian languages, including Māori and Moriori, some romanizations of Japanese, Persian, Pashto, Assyrian Neo-Aramaic (which represents a long A sound) and Arabic, and some Latin texts (especially for ...
A with macron and macron: Kienning Colloquial Romanized transliteration Ā̆ ā̆: A with macron and breve: Latin, Middle High German, Proto-Indo-European Ā̆́ ā̆́: A with macron, breve and acute: Latin Ā̈ ā̈: A with macron and diaeresis: Svan transliteration Ā̊ ā̊: A with macron and ring above: Avestan transliteration Ā̌ ā̌: A ...
The left heart has two chambers: the left atrium and the left ventricle, separated by the mitral valve. [8] The left atrium receives oxygenated blood back from the lungs via one of the four pulmonary veins. The left atrium has an outpouching called the left atrial appendage. Like the right atrium, the left atrium is lined by pectinate muscles. [25]
The heart is a muscular organ situated in the mediastinum.It consists of four chambers, four valves, two main arteries (the coronary arteries), and the conduction system. The left and right sides of the heart have different functions: the right side receives de-oxygenated blood through the superior and inferior venae cavae and pumps blood to the lungs through the pulmonary artery, and the left ...
The hexaxial reference system is a diagram that is used to determine the heart's electrical axis in the frontal plane. The hexaxial reference system, better known as the Cabrera system, is a convention to present the extremity leads of the 12 lead electrocardiogram, [1] that provides an illustrative logical sequence that helps interpretation of the ECG, especially to determine the heart's ...
Cardiac physiology or heart function is the study of healthy, unimpaired function of the heart: involving blood flow; myocardium structure; the electrical conduction system of the heart; the cardiac cycle and cardiac output and how these interact and depend on one another.