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 thoracic cavity contains three internal chambers: a single pericardial cavity and a pair of pleural cavities (Figure 1-11a). These cavities are lined by shiny, slippery serous membranes. The heart is surrounded by the pericardial cavity.The relationship between the heart and the cavity resembles that of a fist pushing into a balloon (Figure 1-11b). The wrist corresponds to the base (attached portion) of the heart, and the balloon corresponds to the serous membrane that lines the pericardial cavity.The serous membrane is called the pericardium. cut that passes along the midline and divides the body into left and right halves is a midsagittal section, or median section; a cut parallel to the midsagittal line is a parasagittal section. Body Cavities. Many vital organs are suspended in internal chambers called body cavities.