Penicillin-resistant bacteria
Bacteria that are unaffected by penicillin. Such organisms can sometimes be killed using sulfa drugs, combinations of several medication or other tactics. The rise of penicillin-resistant bacteria is laid to overuse of penicillin drugs, including their ineffective but nonetheless frequent use against colds and other viral infections.
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- Penile
Of or pertaining to the penis.
- Penis
The external male sex organ. The penis contains two chambers, the corpora cavernosa, which run the length of the organ. These chambers are filled with spongy tissue and surrounded by a membrane called the tunica albuginea. The spongy tissue contains smooth muscles, fibrous tissues, spaces, veins, and arteries. The urethra, which is the channel for […]
- Penis, cancer of the
A malignant tumor in which cancer cells develop in the tissues of the penis. It is rare in the US. A physician should be consulted for growths or sores on the penis, any unusual discharge from the penis, or bleeding. If warranted, a biopsy is performed. If cancer is found, more tests are done to […]
- Penis, erection of the
The state of the penis when it is filled with blood and becomes rigid. The penis contains two chambers called the corpora cavernosa, which run the length of the organ, are filled with spongy tissue, and are surrounded by a membrane called the tunica albuginea. The spongy tissue contains smooth muscles, fibrous tissues, spaces, veins, […]
- Penis, hypospadias of the
A birth defect in which the urethra opens on the underside of the penis or below the penis. Treatment involves surgery to repair and reconstruct the urethra.