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The endocardial endothelium may also act as a kind of blood–heart barrier (analogous to the blood–brain barrier), thus controlling the ionic composition of the extracellular fluid in which the cardiomyocytes bathe. [6]
The endocardial cushions are thought to arise from a subset of endothelial cells that undergo epithelial-mesenchymal transition, a process whereby these cells break cell-to-cell contacts and migrate into the cardiac jelly (towards the interior of the heart tube). These migrated cells form the "swellings" called the endocardial cushions seen in ...
Roman Urdu also holds significance among the Christians of Pakistan and North India. Urdu was the dominant native language among Christians of Karachi and Lahore in present-day Pakistan and Madhya Pradesh, Uttar Pradesh Rajasthan in India, during the early part of the 19th and 20th century, and is still used by Christians in these places ...
Hindustani (sometimes called Hindi–Urdu) is a colloquial language and lingua franca of Pakistan and the Hindi Belt of India. It forms a dialect continuum between its two formal registers: the highly Persianized Urdu, and the de-Persianized, Sanskritized Hindi. [2] Urdu uses a modification of the Persian alphabet, whereas Hindi uses Devanagari ...
Arab and Persian elaborations upon the Greek system of medicine by figures like Ibn Sina and al-Razi influenced the early development of Unani. [8] [9] Unani medicine interacted with Indian Buddhist medicine at the time of Alexander's invasion of India. There was a great exchange of knowledge at that time which is visible from the similarity of ...
This begins with the formation of two endocardial tubes which merge to form the tubular heart, also called the primitive heart tube. The heart is the first functional organ in vertebrate embryos . The tubular heart quickly differentiates into the truncus arteriosus , bulbus cordis , primitive ventricle , primitive atrium , and the sinus venosus .
In 2025, an average of 11,400 Americans will turn 65 every day; that amounts to 4.18 million people — the highest on record.So, we can expect, most likely, a record amount of people retiring ...
In humans, the heart is approximately the size of a closed fist and is located between the lungs, in the middle compartment of the chest, called the mediastinum. [4] In humans, the heart is divided into four chambers: upper left and right atria and lower left and right ventricles.