An intrauterine device (IUD) prevents pregnancy through several mechanisms:

1. Prevents sperm from passing through the cervix: This is not the primary mechanism of action for most IUDs. While it's true that some IUDs may increase cervical mucus, which can prevent sperm from entering the uterus, this is not the main way they work.

2. Changes the uterine environment: This is true for both hormonal and copper IUDs. Copper IUDs release copper into the uterus, which is toxic to sperm. Hormonal IUDs thicken the mucus in the cervix, making it harder for sperm to enter the uterus and reach an egg. They also thin the lining of the uterus, which makes it less likely that a fertilized egg can attach to the uterus.

3. Has spermicidal properties: This is true for copper IUDs. The copper released by these IUDs is toxic to sperm.

4. Releases hormones that inhibit the hypothalamus: This is partially true. Hormonal IUDs release progestin, a hormone that prevents ovulation by inhibiting the hypothalamus and pituitary gland. However, this is not the primary mechanism of action for these IUDs.

So, all of the options listed can be ways that an IUD prevents pregnancy, but the primary mechanisms are changing the uterine environment and, for hormonal IUDs, releasing hormones.

Question

An intrauterine device (IUD) prevents pregnancy through several mechanisms:

1. Prevents sperm from passing through the cervix: This is not the primary mechanism of action for most IUDs. While it's true that some IUDs may increase cervical mucus, which can prevent sperm from entering the uterus, this is not the main way they work.

2. Changes the uterine environment: This is true for both hormonal and copper IUDs. Copper IUDs release copper into the uterus, which is toxic to sperm. Hormonal IUDs thicken the mucus in the cervix, making it harder for sperm to enter the uterus and reach an egg. They also thin the lining of the uterus, which makes it less likely that a fertilized egg can attach to the uterus.

3. Has spermicidal properties: This is true for copper IUDs. The copper released by these IUDs is toxic to sperm.

4. Releases hormones that inhibit the hypothalamus: This is partially true. Hormonal IUDs release progestin, a hormone that prevents ovulation by inhibiting the hypothalamus and pituitary gland. However, this is not the primary mechanism of action for these IUDs.

So, all of the options listed can be ways that an IUD prevents pregnancy, but the primary mechanisms are changing the uterine environment and, for hormonal IUDs, releasing hormones.

Knowee AI · Accepted Answer

An intrauterine device (IUD) prevents pregnancy through several mechanisms:

1. Prevents sperm from passing through the cervix: This is not the primary mechanism of action for most IUDs. While it's true that some IUDs may increase cervical mucus, which can prevent sperm from entering the uterus, this is not the main way they work.

2. Changes the uterine environment: This is true for both hormonal and copper IUDs. Copper IUDs release copper into the uterus, which is toxic to sperm. Hormonal IUDs thicken the mucus in the cervix, making it harder for sperm to enter the uterus and reach an egg. They also thin the lining of the uterus, which makes it less likely that a fertilized egg can attach to the uterus.

3. Has spermicidal properties: This is true for copper IUDs. The copper released by these IUDs is toxic to sperm.

4. Releases hormones that inhibit the hypothalamus: This is partially true. Hormonal IUDs release progestin, a hormone that prevents ovulation by inhibiting the hypothalamus and pituitary gland. However, this is not the primary mechanism of action for these IUDs.

So, all of the options listed can be ways that an IUD prevents pregnancy, but the primary mechanisms are changing the uterine environment and, for hormonal IUDs, releasing hormones.

How does an intrauterine device (IUD) prevent pregnancy?Multiple choice question.Prevents sperm from passing through the cervixChanges the uterine environmentHas spermicidal propertiesReleases hormones that inhibit the hypothalamus

Question

Solution

Similar Questions

Upgrade your grade with Knowee