2 major loops - one goes from the heart to the lungs while the other from the heart to the other parts of your body
The answer would be 2 placenta. A thin walled sac that surrounds the fetus during pregnancy. The sac is filled with amniotic fluid(liquid made by fetus) and the amnion(the membrane that covers the fetal side of the placenta)
If your full question is
Which risk factor is least likely to result in someone contracting HIV infection?a.Multiple sexual contacts
b.Hemophilia
c.Intravenous drug use
d.<span>Working with AIDS patients
your answer is undoubtedly D, working with AIDS patients.</span>
<span>The most common airway obstruction is the tongue.
It blocks the upper airway causing asphyxiation in many patients who are
comatose or have suffered cardiopulmonary arrest. An airway obstruction is
considered to be life-threatening and should get immediate medical attention.
The severity of the obstruction varies on a case to case basis and a people
should be aware how to properly perform first aid to avoid further
complications. If a person has not been able to breathe a possible tracheotomy
will be performed by the rescuer as a quick response. This is to enable the
passage of air back to the brain. </span>
