![]() The length of the urethra is longer (8 inches) than in females (1.5 inches) as the urethra passes through the penis in males. The main part of the urinary bladder is a trigone structure that contains an orifice called the urethra through which the urine is voided. The false ligaments are peritoneal folds and do not give as much support as the true ligaments. They are the four true ligaments and seven false ligaments. There are two types of ligaments that hold the urinary bladder in place. The base or fundus of the bladder is directed toward the rectum in males and toward the uterus in females. The apex of the bladder provides attachment to a ligament called the median umbilical ligament and that lies behind the pubic symphysis. The urinary bladder is a triangular structure that has an apex, fundus (base), three surfaces, and four borders. The kidneys filter blood and send urine through thick tubes called ureters which are attached to the superior part of the bladder. The urinary bladder is a pear-shaped, hollow, elastic, and muscular structure that sits on the pelvic floor. Hence, the anatomy and physiology of the urinary bladder are of extreme importance to clinicians. The urinary bladder is commonly involved with many clinical conditions such as urine retention, cystitis, cancer, and calculus. The main function of the urinary bladder is to collect urine and provide a signal to the brain to urinate once the bladder is filled. The capacity of the urinary bladder ranges between 400 mL- 600 mL. #FALSE LIGAMENT OF URINARY BLADDER FULL#An empty bladder lies within the lesser pelvis, whereas a full bladder may extend up to the abdominal cavity. The location of the urinary bladder depends on whether the urinary bladder is full or empty. When the urinary bladder is full, it becomes tetrahedral in shape, and when it is empty, it is an ovoid. In males, the urinary bladder lies in front of the rectum, and in females, in front of the uterus. The bladder collects and stores urine which is filtered by the kidneys and passes the urine to the urethra, where it will be eliminated by micturition. The pelvic splanchnic nerves arising at S2–S4 are in the lesser pelvis.The urinary bladder is a muscular reservoir of urine which lies anterior to the pelvis immediately behind the pubic symphysis. In the female, the uterus and vagina occupy the interval between these viscera. The rectum is at the back, in the curve of the sacrum and coccyx the bladder is in front, behind the pubic symphysis. The true pelvis contains the pelvic colon, rectum, bladder, and some of the reproductive organs. Greater and lesser pelvis: The greater pelvis (yellow) is larger and superior to the lesser pelvis (red) where the pelvic inlet is located. ![]() Others define the pelvic cavity as the larger space including the false greater pelvis, just above the pelvic inlet. Some consider this region to be the entirety of the pelvic cavity. This cavity is a short, curved canal, deeper on its posterior than on its anterior wall, and contains the pelvic inlet. The true (or lesser) pelvis is bounded in front and below by the pubic symphysis and the superior rami of the pubis above and behind, by the sacrum and coccyx and laterally, by a broad, smooth, quadrangular area of bone, corresponding to the inner surfaces of the body and superior ramus of the ischium, and the part of the ilium below the arcuate line. The false (greater) pelvis is larger and superior to the true (lesser) pelvis where the pelvic inlet is located. ![]()
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