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.
Location of heart in the Mediastinum. Heart is located in a space in the centre of the chest cavity called mediastinum in particular theMiddle mediastinum. It is the space between the 2 lungs and the heart is wedged between them.[ 3 ]. The mediastinum is divided into. 1  Superior mediastinum.ocation of heart in the Mediastinum. Heart is located in a space in the centre of the chest cavity called mediastinum in particular theMiddle mediastinum. It is the space between the 2 lungs and the heart is wedged between them.