Exam 27: Urinary System

If blood oxygen levels are reduced,cells in the kidney respond by secreting the hormone _________________.

The triangular area within the urinary bladder that is delimited by the openings of the ureters and the urethra is called the __________.

The arrangement of circular and longitudinal muscle fibers in the muscularis of the ureter is opposite to that found in the GI tract,where the circular layer is the inner layer.

The external urethral sphincter

Which layer is not found in the wall of the urinary bladder?

Which is not one of the changes in the urinary system due to aging?

Which does not enter or exit the kidney at the hilum?

Each kidney contains more than a million "functional units" called ___________.

Each renal papilla empties into only one minor calyx.

The juxtaglomerular cells release the enzyme ______________ when the macula densa cells detect low blood volume or solute concentration.