Mindblown: a blog about philosophy.
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Siphonage
The removal of liquid from one place to another with a tube, as used to empty the stomach of its contents. The transfer of liquid from one container to another by means of a bent tube. The procedure is used in gastric lavage, when the stomach is filled with water through a funnel and rubber…
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Sinus venosus
A cavity in the heart of an embryo, part of which develops into the coronary sinus and part of which is absorbed into the right atrium. A chamber of the embryonic heart that receives blood from several veins. In the adult heart it becomes part of the right atrium. In the embryo, a large venous…
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Sinus tachycardia
Rapid beating of the heart caused by stimulation of the sinoatrial node. Heart rate with normal rhythm but elevated rate above 100 beats per minute. A fast heartbeat originating in the sinus node, the heart’s own pacemaker. Sinus tachycardia is normal during exercise or when a person experiences anxiety. It may also be caused by…
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Sinus nerve
A nerve which branches from the glossopharyngeal nerve.
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Sinography
Examination of a sinus by taking an X-ray photograph.
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Sinogram
An X-ray photograph of a sinus. A radiograph of a sinus tract filled with a radiopaque contrast medium to determine the rang and course of the tract.
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Sinoatrial node
A node in the heart at the junction of the superior vena cava and the right atrium, which regulates the heartbeat. Area of modified cardiac muscle in the right atrium near the entry of the superior vena cava that generates impulses that travel through the muscles of both atria, causing them to contract. Cells in…
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Sinoatrial
Relating to the sinus venosus and the right atrium of the heart.
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Sinistral
Relating to or located on the left side, especially the left side of the body. Relating to the left side or an individual who is left-handed.
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Single parent family
A family which consists of a child or children and only one parent, e.g. because of death, divorce or separation. A family in which only one of the parents is living with the child or children. A family in which only one parent lives with the child or children.
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