Chemical Teratogens and Reproductive Toxicology
Q: True or False: The 'Critical Period' for teratogen exposure is the same for all organ systems.
Did You Know?
The congenital anomaly where the urethral opening (meatus) is located on the dorsal (top) surface of the penis is called epispadias. This is a much rarer condition than its counterpart, hypospadias (which occurs on the ventral/underside). Epispadias results from a failure of the anterior wall of the urethra to close properly during fetal development. It is often associated with more complex urogenital malformations, most notably exstrophy of the bladder, where the bladder is exposed on the outside of the abdominal wall. In isolated epispadias, the penile shaft is often short, broad, and may have an upward curvature. The severity is classified as glandular (mildest), penile, or penopubic (most severe, involving the entire length and the bladder neck). Surgical reconstruction is complex and aims to create a functional urethra, achieve urinary continence, and ensure a cosmetically acceptable appearance.
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