Inferior vena cava
A large vein that receives blood from the lower extremities, pelvis and abdomen and delivers it to the right atrium of the heart.
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- Inferolateral
Below and to one side. Both inferior and lateral. In anatomy, there are many such compound terms. For a more complete listing of terms used in medicine for spatial orientation, please see the entry to “Anatomic Orientation Terms”.
- Infertile
Not able to conceive after a year of regular intercourse without contraception. Infertility can be due to many causes. In some cases of possible female infertility, the problem is found to originate with the male partner’s sperm count or motility. Some cases are due to physical problems or malformations of the female reproductive system. Others […]
- Infertility
Diminished or absent ability to conceive and bear offspring. A couple is considered to be experiencing infertility if conception has not occurred after 12 months of sexual activity without the use of contraception. Infertility can have many causes and may be related to factors in the male, female, or both. Treatments can include medications and […]
- Infiltrate
To penetrate. For example, a cancer may grow into, or infiltrate, surrounding tissues.
- Infiltrating ductal carcinoma of the breast
One of several recognized specific patterns of breast cancer that begins in the cells that form the ducts of the breast. The most common form of breast cancer, it may appear as a smooth-edged lump in the breast. On physical examination, this lump usually feels much harder or firmer than benign lumps in the breast.