Menactra Vaccine Immunogenicity. Helps protect against 4 vaccineâpreventable serogroups1,2. Immunogenicity proven in clinical trials â confirmed in everyday use1. The immune responses to Menactra and Menomune-A/C/Y/W-135 vaccines were comparable for all 4 serogroups1,6.
The mediastinum is the middle section of the chest cavity. The chest cavity contains the left and right lungs, which lie on either side of the heart. The heart is contained in the portion of the chest known as the mediastinum.
The heart is located under the rib cage between the lungs, with slightly more to the left of midline than the right. The human heart, which is normally about the size of your fist, is located behind and to the left of your breastbone, also called the sternum. Watch this animation to learn more about your heart and how it works. right behind your ribcage & a little to the left in the center of your body. The heart lies within the thorax in the body. This location is called the mediastinum. The heart is about the size of your fist and is located sub-sternal, center thoracic, superior to the stomach with the apex on the left.