Kidney Flashcards
What is the function of the kidney?
to remove water, salts, and products of protein metabolism from the blood
Describe the kidney’s location.
- posterior-most organ in the abdomen
- bean-shaped retroperitoneal organ
- extends from T12 to L3
- right kidney lies slightly lower than the left due to the large size of the right lobe of the liver
- kidneys lie anterior to the psoas major and lateral to the vertebral column within the paravertebral grooves
What is the relationship between the kidney and psoas major?
Because the kidney rests on top of the psoas, a strained psoas major muscle is sometimes mistaken for kidney pain
What are the surfaces of the kidney?
- anterior
- posterior
What are the borders of the kidney?
- medial
- lateral
What are the poles of the kidney?
- superior
- inferior
Where is the hilum of the kidney located?
a vertical fissure located on the medial surface
What does the hilum of the kidney transmit?
- renal vein (anteriorly)
- renal artery (between renal vein and ureter)
- ureter (posteriorly)
- autonomic and sensory nerves
What is the renal pelvis?
the expanded superior end of the ureter within the hilum
What is the renal sinus?
a recess located within the hilum, which is filled with fat
What is the renal pedicle?
the structures which enter the hilum are known collectively by this term
What is the renal cortex?
the outer portion of the kidney
What are the renal columns?
projections of the cortex into the medulla between the renal pyramids
What is the renal medulla?
- the inner portion of the kidney
- includes 8-12 renal pyramids
What is a renal pyramid?
terminates in an apex known as the renal papilla