Exam 31: A: Urinary System

The interlobular artery carries blood directly to the glomerulus.

In the loop of Henle,the descending limb is thicker than the ascending limb.

The collecting duct receives filtrate from many different nephrons.

Most reabsorption occurs in the loop of Henle.

The descending limb of the loop of Henle is usually in osmotic equilibrium with the interstitial fluid.

Both ADH and aldosterone attempt to decrease normal urine output.

An increase in ADH causes a decrease in the osmolarity of urine.

As the basic functional unit of the kidney,the nephron's function is blood plasma processing and urine formation.

About 85% of the nephrons are juxtamedullary nephrons,which means that the Henle loop extends into the medulla of the kidney.

The outer portion of the kidney is referred to as the cortex.

The male urethra is about twice as long as the female urethra.

The renal corpuscle is another name for the nephron.

In the blood vessels in the kidney,lobar arterioles divide to become segmental arterioles.

The parts of the nephron most effected by the hormone ADH are the proximal and distal convoluted tubules.

A hydrostatic pressure gradient causes fluids to move from the glomerulus into Bowman capsule.

The primary cilium of the epithelial cells lining the renal tubules act as mechanoreceptors to regulate the flow of filtrate through the tube.

Just as in the bladder,the ureter is lined with transitional epithelium,which allows it to stretch without damage.

Glomerular hydrostatic pressure and filtration are directly related to systemic blood pressure.

The kidney is similar to the hepatic portal system because it has a venule connecting two capillary beds-the glomerulus and the peritubular capillaries.

Electrolytes are excreted by both the urinary and integumentary systems.