2. When the left ventricle relaxes, the aortic valve closes and the mitral valve opens. This lets blood flow from the left atrium into the left ventricle.
4. Quickly shocking the heart with an automated external defibrillator (AED) can save a person's life after cardiac arrest. An AED is a portable, battery-operated device that a bystander can use. It checks the heart rhythm and can send an electric shock to the heart to try to restore a normal rhythm.
5. High blood pressure can damage your arteries by making them less elastic, which decreases the flow of blood and oxygen to your heart and leads to heart disease. In addition, decreased blood flow to the heart can cause: Chest pain, also called angina.
hope this helps :)
Answer: for girls, they will start to grow breast and pubic hair start menastration or start to have body odor and acne and become more emotional or start to have more emotiaons.
For boys, They will start to grow pubic hair. thier voice will change and they will get body odor and acne as well.
Explanation:
1. Very few Americans can afford to plunk down $189,000 without getting a loan.
2. Running up your credit card to buy fancy dinners, you spend more time in your home than anywhere else.
3. Historically, home prices go up, making it the most profitable investment for average Americans.
FALSE.
Without x-rays, it is difficult to tell the difference between a fracture, a dislocation, a sprain and a strain.
