A Mrs. Kristy L. France, Cardiology (Cardiovascular Disease), answered on behalf of Honor Society of Nursing (STTI). The blood type of a child depends on the blood type of the parents. Each parent/person has two genes that make up the blood type. Depending on which combination each parent has determines the different combinations that the child can have.
The use of bands and chains are mentioned on the Powerlift Assistance Exercises pages. This page will describe their use. The use of bands and chains are especially recommended for those who compete using squat and deadlifts suits and a bench shirt. The bands and chains mimic the effects that the gear gives and provide extra work for the top part of each lift.
Some orthodontists will have hooks on every posterior bracket which makes it a little more difficult to keep clean. Most orthodontists have hooks on the cuspid and molar brackets only. These hooks can be used for various attachments like springs and rubber bands to help move the teeth. The majority of the time, these hooks are used for elastic rubber bands. Rubber bands can be used in many different configurations. Normally, they are used inter arch which can be from top to bottom, side to side or front to back. A typical example is a patient that has an excessive overjet (overbite).