A. Geriatrics is the study of older people
Gynecology is the study of women's reproductive health
Obstetrics is the study of pregnancy and child birth
Pediatrics is the study of children
Answer:With this system, blood always flows in only one direction inside the heart. There are also valves at the bottom of the large arteries that carry blood away from the heart: the aorta and the pulmonary artery. These valves keep the blood from flowing backward into the heart once it has been pumped out.
Explanation:
You could try to put cold ice over it to calm down the bruising and then use a cloth and damp it in hot water(warm water) and wipe the bruise properly so that the blood can circulate properly. If you are having troubles breathing then why to relax your muscle, because if you are tense right now it will only make things worse.
And if it really hurt go to the hospital, dont take any risks.
Answer:
an disease caused by the lack of some essential or important element in the diet, usually a particular vitamin or mineral.
Get vaccinated so you are protected.
Wash your hands A LOT to minimize your chances of exposure.
Cough into your elbow so you don't spread germs.
