Your baby's finally here, and you're thrilled â but you're also exhausted, uncomfortable, on an emotional roller coaster, and wondering whether you'll ever fit into your jeans again. Childbirth classes helped prepare you for giving birth, but you weren't prepared for all of this!
The trabeculae carneae are muscular, columnar protrusions found on the internal surface of the ventricles, the main pumping chambers of the heart. It is thought that they help prevent suction that would occur with a smooth surface.he trabeculae carneae are muscular, columnar protrusions found on the internal surface of the ventricles, the main pumping chambers of the heart. It is thought that they help prevent suction that would occur with a smooth surface.
In females Ascaris, there is the genital pore or vulva; males do not have a separate genital pore. The anus in these serves for genital pore also and, it is called cloacal aperture. Two small needle-like penial spicules or copulatory seatae, formed of cuticle, protrude out from the cloacal aperture (fig. 9.16 A, B).