Contracts and flattens because the lungs expand.
Yes, both cattle and horses have diaphragms to aid in respiration. All mammals have diaphragms and there isn't a mammal who can live without one.
Frogs open and close their mouths to breathe. They don't have diaphragms to help them breathe, so they use muscles in their mouth to push air into their lungs. They also use this action to help them swallow food.
Diaphragms.
There is no such thing as female condoms, but diaphragms are the female equivalent. Diaphragms are available at most pharmacies, and can be prescribed by ones doctor. Pharmacies such as CVS and Rite Aid sell diaphragms.
Diaphragms, condoms, and the cervical cap are barrier methods of contraception.
nope
i like poppy
yes
It's free
it regulate respiration
Diaphragms must be used with spermicidal cream or jelly. The device should cause no discomfort, and neither the woman nor her partner should feel that it is there
There are two types of diaphragms of a microscope. There are disk and iris type diaphragms, the setting are dependent upon the transparency of the object, the degree of contrast desired and the objective lens selected.