AP BIOLOGY

Detailed explanation-1: -The bladder is a hollow muscular sac that stores urine. It is located in the pelvis and is part of the urinary system. As well as the bladder, the urinary system includes two kidneys, two tubes called ureters leading from the kidneys into the bladder, and another tube called the urethra leading out of the bladder.

Detailed explanation-2: -From the calyxes, pee travels out of the kidneys through the ureters (pronounced: YUR-uh-ters) to be stored in the bladder (a muscular sac in the lower belly).

Detailed explanation-3: -The muscularis propria is the thick, outer muscle layer of the bladder. It is made up of 3 layers of muscle that work automatically without you thinking about it (called smooth muscle). Other tissue that separates the bladder from other organs are: serosa – a thin membrane that covers the top part of the bladder.

Detailed explanation-4: -The urinary bladder is a muscular sac in the pelvis, just above and behind the pubic bone. When empty, the bladder is about the size and shape of a pear. Urine is made in the kidneys and travels down two tubes called ureters to the bladder. The bladder stores urine, allowing urination to be infrequent and controlled.

Detailed explanation-5: -The bladder is an expandable, muscular sac. Urine accumulates in the bladder as it arrives from the ureters. The bladder gradually increases in size to accommodate an increasing volume of urine.