A&P Urinary System
Card Set Information
A&P Urinary System
A&P, dz, etc
What are the parts of the urinary system?
2 kidneys, 2 ureters, 1 bladder, 1 urethra
What are the functions of the kidneys?
To maintain homeostasis through blood filtration, reabsorption & secretion; fluid balance regulation; acid-base regulation; hormone production
What hormones control diuresis?
Antidiuretic hormone (ADH) and aldosterone
Where are the kidneys located?
Dorsal and retroperitoneal to abd cavity
What is the indented medial area of the kidney called?
What leave the hilus?
Blood and lymph vessels, nerves, and ureters
What is the renal pelvis?
Funnel shaped area in the hilus
What is the outer portion of the kidney called?
What is the inner portion of the kidney called?
What are the extensions of the renal pelvis called?
What is the basic functional unit of the kidney called?
What are the nephrons composed of?
Renal corpuscle, proximal convulated tubule, loop of Henle, and distal convulated tubule
What makes up the renal corpuscle?
Glomerulus and Bowman's capsule
What are the components of the glomerulus?
What is Bowman's capsule?
Double-walled capsule surrounding the glomerulus
What is glomerular filtrate?
The fluid produced after blood has been filtered
What is the fxn of the PCT (proximal convoluted tubule)?
Reabsorption and secretion
What is the fluid in the PCT called?
What structure is a continuation of the PCT?
Loop of Henle
What do the DCT (distal convoluted tubule) empty into the collecting ducts?
Which hormone plays an important role in urine volume in the collecting ducts?
Antidiuretic hormone (ADH)
What artery branches off the abdominal portion of the aorta to enter the kidney at the hilus?
What carries blood into the glomerular capillaries of the renal corpuscle?
Afferent glomerular arterioles
What do the glomerular capillaries filter?
Plasma from the blood to put it in the capsular space of Bowman's capsule
The peritubular capillaries perform what?
Oxygen transfer to nephron cells
What doe the peritubular capillaries become?
Renal vein, which leaves the kidney and joins the abd portion of the caudal vena cava
Pores in the capillary endothelium are called?
Glomerular filtration rate (GFR) measures what?
How fast plasma is filtered as it passes through the glomerulus
Name some substances that are important for homeostasis that are reabsorbed in the blood
Na, K, Ca, Mg, glucose, AA, chloride, bicarbonate and water