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.
Confidence votes 16.6K. The heart is in the thoracic cavity in a part called the mediastinum. It is protected by the pericardium, a membranous sac that surround the heart.The mediastinum is that space in the thoracic cavity between the lungs that contains the heart.he thoracic cavity consists of the lungs, heart, liver, stomach and other important squishy organs. the ribcage stops these organs getting damaged if you fall over, for examp â¦ le, which is why the heart's in the thoracic cavity.