BIOLOGY

Virtual Experiment

Virtual Experiment

Part 1

Question No. 1

The right coronary artery emerges from the right atrial appendage and the origin of the lung, is introduced into the coronary sulcus (atrioventricular) and runs right up to the posterior interventricular groove, which is introduced then called posterior interventricular artery.

The left coronary artery is divided, almost immediately of his birth, left anterior descending artery and circumflex artery. The anterior descending artery supplies the anterior and lateral ventricle also left the interventricular septum by septal branches. The circumflex artery supplies the posterior aspect of the left ventricle.

Question No. 2

Right ventricular assist device (RVAD), does not replace the heart but it only assists the heart to pump oxygen-poor blood from the right ventricle to the lungs. It is mechanical device that can be placed outside the body or implanted inside.

Question No. 3

The heart size is approximately proportional to the body. (On average, 4g/kg body weight). Thus, the average heart weight of males 300 grams (slightly less in woman). The average diameter of the heart: length 150 mm, transverse diameter of 110 mm, 90 mm in sagittal diameter, circumference of the atrioventricular border 260 mm. (Laennec, the heart size of his fist on the individual's identity, but this is only a very superficial approach to the actual conditions.)

Question No. 4

Sedation provides sleep and hypnotic and sedative drugs cause the patient's sleep. In addition, many hypnotic drugs provide amnesia so as not to be aware of the operation and not remember it, also it overrides the anxiety and agitation. Muscle relaxation is achieved by administering paralyzing drugs so as to allow easy ventilation with a respirator (not resist) and avoid involuntary movements of the patient that can harm the operation. Logically relaxants combined with analgesics and sedatives.

Question No. 5

Antibacterial soap is used prior to surgery to prevent the ...