Studying is an important part of academic success. However, it is sometimes difficult to find the time to study for every subject we need to study for. One way to ensure studying success is to create a solid study schedule. Creating a study schedule, though, can be harder than we think. Not only do you have to prioritize the subjects and courses you need to study for, but you also have to juggle other responsibilities such as family, friends, and entertainment.
The posterior fontanelle usually closes by age 1 or 2 months. It may already be closed at birth. The anterior fontanelle usually closes sometime between 9 months and 18 months. The sutures and fontanelles are needed for the infant's brain growth and development.
To relieve this pressure, the surgeon makes a fenestration (hole) between the tunnel and the heart. The fenestration allows some blood to flow from the tunnel into the heart. It acts as a temporary pressure release valve while your child's body is adjusting to the new circulation.It is usually closed several months after the Fontan operation, so that oxygen-poor and oxygen-rich blood no longer mix.enestration closure after a Fontan operation is a procedure to close the hole between your child's heart and the tunnel that takes oxygen-poor blood from the body to the lungs. 1  The procedure is done in the heart catheterization lab.