It was like memory t- cells which basically are the brains of the immune system,this way if a disease strikes,the next time it strikes the immune system knows what to do and what to protect like vital organs a virus may attack
<h3>The longer urethra of males means bacteria must travel farther to the bladder to cause an infection. Forceful urination is accomplished by contraction of abdominal muscles.</h3>
<span>It is a vacuum effect. The lungs have gotten used to their size and shape, and they are comfortable this way. When a person forcibly exhales, it constricts the lungs. When a person relaxes, the lungs return to their normal shape as they took in air. The only ventilation is the trachea, and it forces air in.</span>
