Renal

Question 1

Primary function of the kidneys

Answer 1

Maintain a stable internal environment for optimal cell and tissue metabolism

1) balancing solute and water transport
2) excrete metabolic waste products
3) conserving nutrients
4) Regulating acids and bases

Question 2

What is the kidneys endocrine function

Answer 2

Secreting the hormone rennin - regulates blood pressure

Erythropoietin- needed for RBC production

125 hydroxy vitamin D3 - metabolizes calcium

Question 3

What is gluconeogenesis

Answer 3

Synthesizing glucose from amino acid

I’m times of severe fasting

Question 4

Juxtaglomerular cells secrete what?

Answer 4

Renin

Question 5

Macula Densa sense changes in what?

Answer 5

Sodium

Question 6

What happens to cause the urge to void

Answer 6

When the bladder has enough urine (250-300 ccs in an adult)
A micturition reflex occurs which allows urination
This reflex is triggered by an activation of the spinal reflex arc (occurs when the bladder contracts and the internal urethral sphincter relaxes. - this causes the urge to void

Question 7

Potty training

Answer 7

The reflex to void can be inhibited or facilitated by impulse from the brain resulting in voluntary control of micturition

Question 8

GFR

Answer 8

Tells us how well the kidneys work

Question 9

GFR is directly related to _______

Answer 9

Renal blood flow

Question 10

Changes in systemic blood pressure or blood volume will induce

Answer 10

Changes in arteriole resistance or pressure to maintain a constant GFR

Question 11

If there is a rise in systemic Bp, the afferent arterioles

Answer 11

Constrict preventing an increase in glomerular blood flow and filtration pressure keeping the GFR the same