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The heart is a muscular organ found in humans and other animals.This organ pumps blood through the blood vessels. [1] Heart and blood vessels together make the circulatory system. [2]
The sinus venosus is a large quadrangular cavity which precedes the atrium on the venous side of the chordate heart. [1] [verification needed]In mammals, the sinus venosus exists distinctly only in the embryonic heart where it is found between the two venae cavae; in the adult, the sinus venosus becomes incorporated into the wall of the right atrium to form a smooth part called the sinus ...
Mount Arjuno-Welirang is a stratovolcano in the province of East Java in Java, Indonesia.Mount Arjuno-Welirang lies about 50 kilometers (31 mi) south of Surabaya, and 20 kilometers (12 mi) north of Malang.
Tasikmalaya is a landlocked city in West Java, Indonesia.The city is sometimes dubbed kota santri (city of religious learners) or "the City of a Thousand Pesantrens" for its abundance of Islamic boarding schools. [2]
Nias (Indonesian: Pulau Nias, Nias: Tanö Niha) is an island located off the western coast of Sumatra, Indonesia.Nias is also the name of the archipelago (Kepulauan Nias) of which the island is the centre, but also includes the Batu Islands to the southeast and the small Hinako Islands to the west.
A medical monitoring device displaying a normal human heart rate. Heart rate is the frequency of the heartbeat measured by the number of contractions of the heart per minute (beats per minute, or bpm).
Dan Kitwood/Getty Prince Harry, Duke of Sussex (L) and Meghan, Duchess of Sussex arrive to attend the annual Commonwealth Day Service at Westminster Abbey on March 9, 2020 in London, England.
A heart valve is a biological one-way valve that allows blood to flow in one direction through the chambers of the heart.A mammalian heart usually has four valves. Together, the valves determine the direction of blood flow through the heart.