An imperforate anus is a birth defect that happens while your baby is still growing in the womb. It occurs more often in boys than girls. The rectum, bladder, and vagina of a female baby with an imperforate anus sometimes share one large opening.
Hemorrhoids, also called piles, happen when clusters of veins in your rectum or anus get swollen or dilated. When these veins swell, blood pools and causes the veins to expand outward into the membranes around your rectal and anal tissue. This can become uncomfortable or painful.
Thought to have lived as long as million years ago, the creature is the oldest known member of a large group of animals known as deuterostomes, which includes vertebrates — such as humans — as well as starfish, sea urchins and a host of other fauna. While it is highly unlikely the new species is our direct ancestor, scientists say the creature could be very similar to it. As a result, the discovery of the fossils sheds light on the early stages of our evolution.
Fish anatomy is the study of the form or morphology of fishes. It can be contrasted with fish physiologywhich is the study of how the component parts of fish function together in the living fish. The anatomy of fish is often shaped by the physical characteristics of waterthe medium in which fish live.
Forgot Password? Animals use their anuses for more than just the one obvious reason. Some animals actually breathe
The respiratory system of gastropods varies greatly in form. These variations were once used as a basis for dividing the group into subclasses. The majority of marine gastropods breathe through a single gillsupplied with oxygen by a current of water through the mantle cavity.
Look at how happy this little fellow is! That's because it's about to kill and eat something. Dragonfly nymphs immature stages are aquatic predators.
Begin typing your search above and press return to search. Press Esc to cancel. In our last postyou were a beetle with a breathing problem.