Blood enters the heart through two large veins the inferior and superior vena cava emptying oxygen-poor blood from the body into the right atrium of the heart As the atrium contracts blood flows from your right atrium into your right ventricle through the open tricuspid valve
Neurons send messages from the brain to the rest of the body
Stretch before swimming as to protect her muscles. Some safety precautions to take would be having proper equiptment such as goggles and/or nose/ear plugs. Since it's a public pool, if she is under 18 it would be a good idea to have parental guidance while at the pool as well as making sure there is a lifeguard on duty.
Checking the nutrition facts and ingredients of the item in question
