Urinary system

Pathway that urine takes as it is produced until it exits the body

Kidney-urterer-bladder-urethera

The organ that produces urine

Kidney

Organ that temporarily stores urine

Bladder

Transports urine from kidney-bladder

Ureter

Transports urine out of body

Urethra

Another term for urination

Micturition/voiding

Three functions of urinary system

Excretion, elimination, homeostatic regulation

List homeostatic regulatory mechanisms performed by kidneys

Regulate blood volume and blood pressure, regulates ions in plasma, aids in stabilizing pH conservation of valuable nutrients

Which kidney typically sits lower in the body

Right

Functional unit of kidney that is capable of filtering blood

Nephron

Two layers of the kidney

Cortex (outer) and medulla (inner)

Blood vessel that carries blood to be filtered to the kidney

Renal artery

Blood vessel that carries filtered blood away from the kidney

Renal vein

Where the urethra, renal artery, and renal vein and renal nerve connect to kidney

Hilum

Two main parts of nephron

Renal corpuscle and renal tubule

Two parts of renal corpuscle

Glomerulus and bowman’s capsule

Three regions of renal tubule

Proximal convoluted tubule, loop of henle, and distal convulated tubule.

What fluid that has left the glomerulus and entered bowman’s capsule is called?

Filtrade

Name of fluid in renal tubule

Tubular fluid

Name of fluid in collecting duct

Urine

Process the involves water and solutes leaving glomerular capillaries and entering bowman’s capsule

Filtration

Process that involves removal of water and solutes from tubular fluid and back into capillaries

Re-absorption

Process that involves transport of solutes from capillaries into renal tubule

Secretion

Region of nephron where filtration occurs

Renal corpuscle

Region of nephron where water and some ions are reabsorbed, creating a concentration gradient in renal medulla allowing for the production of concentrated urine

Loop of henle

Region of water reabsorption, and reabsorption or secretion of sodium, potassium, bicarbonate and hydrogen ions

Collecting duct

Water reabsorption typically occurs via this process

Osmosis

Region of reabsorption of ions, organic molecules, vitamins, and water

PCT

Regions of reabsorption of water and sodium ions, secretion of acids, ammonia, and drugs

DCT

Three metabolic wastes found in urine

Urea, uric acid, creatine

Hormone that controls amount of water reabsorbed in DCT and collecting duct

Antidiuretic hormone

Hormone produced by adrenal cortex, results in reabsorption of sodium and secretion of potassium ions

Aldosterone

In low levels of ADH, urine will be ___ b/c there is a ____ level of water reabsorption

Dilute, low

In high levels of ADH, urine will be ___ b/c there is a ____ level of water reabsorption

Concentrated, high