Skeletal muscle contractions which pulls the blood back and valves which close after blood has passed through it.
For the next hundreds years: wars, pollution, population growth, AIDS, resource depletion, hunger, etc.
The medical term for a scientist who studies AIDS is "HIV/AIDS researcher" or "HIV/AIDS scientist."
Aids is not a bacteria. Aids is not found on hands (or that would be extremely rare).
The bad kind. HIV/AIDS. Between 1,400,000 and 1,800,000 adults were living with HIV/AIDS by the end of 2007.
lysosomes
osmotic pressure
valves
It actually does the opposite. Gravity pulls blood down, not up. So the veins, especially in the legs, need one way valves in order to pump blood upwards when skeletal muscles contact. That is one reason why exercise is so good for you, even simple walking helps the blood flow back to the heart, against the pull of gravity.
aids
A black baby was born. And another died of starvation. and someone died from AIDS.
Aids aids aids aids aids aids aids aids aids aids aids aids aids aids aids aids!!!!!!!!!!!!!!!!!!!!!!
For the next hundreds years: wars, pollution, population growth, AIDS, resource depletion, hunger, etc.
Tonus is muscular or body tone. Tonus is defined as the continuous contraction of a muscle in the skeleton system which aids in the return of blood to the heart.
that every man should cheat on his wife with her best friends and give them all aids then say they raped you
This happened to my uncle and he found out he had AIDS. He showed up as negative on the blood work so they had to take a lung tissue sample and had it tested.
we. no no no. we dont have aids. you have aids.
Ryan White was an AIDS and civil rights activist. He was born with severe hemophilia and after contracting a rare form of pneumonia was diagnosed with AIDS at the age of 13. After being diagnosed with AIDS his local community tried to prevent him from returning to school because he had a communicable disease and little was known about it at the time. He fought in court for the right to return to school and won. He died of complications of AIDS in 1990 at age 18.