1 Go to the Tools menu and select Export. 2  Name the file. 3  Examples might be: AddressBook-Thunderbird or ListName-Thunderbird and choose to save it to your Desktop. 4  Change the format to: Comma Separated. 5  Click the Save button. 6  Log into gmail.rider.edu and navigate to Contacts. Go to the Tools menu and select Export. 2  Name the file. 3  Examples might be: AddressBook-Thunderbird or ListName-Thunderbird and choose to save it to your Desktop. 4  Change the format to: Comma Separated. 5  Click the Save button. 6  Log into gmail.rider.edu and navigate to Contacts.
Full Answer. In addition to two upper chambers, the heart also has two lower chambers. The lower chambers are known as the left and right ventricles, which have a primary responsibility of pumping blood out of the heart. Separating the upper and lower chambers are different valves, which control the direction and rate of blood flow. A complete circulating cycle is defined as each instance the two atria bring in blood and the ventricles pump out blood.
The heart consist of 4 chambers-2 atria and 2 ventricle. The atria is about 1/3 the size of the ventricle. The left ventricle is the largest chamber of the heart. The left ventricle has about three time the mucsle than the right ventricle. The chambers of the heart provide a multiple step pathway for blood to be first sent to the lungs for respiration and then dispensed to the body's cells to keep us alive. Read to learn about the 4 chambers of the heart. Valves help the chambers of the heart to help move the blood along in one direction. There are two main valves: the Mitral valve and the Tricuspid valve. The Right Atrium