Module 1 Anatomy Of The Kidney Flashcards
Define incontience
Lack of voluntary control over voiding
How much can the bladder retain?
700-800 ml
What makes up the renal corpuscle ?
Glomerulus , bowmens capsule
What are the 3 parts of the tubule ?
Proximal convoluted tubule, loop of henle , distal
2 types of nephrons?
Juxta medullary nephron, cortical nephron
What are the 3 functions of the kidney?
Excretory , regulatory , endocrine
What is GFR?
Glomerular filtrate rate
What factors affect glomerular filtration ?
- Hydrostatic pressure in the glomeruli , and in the lumen of bowmens capsule
- Oncotic pressure of the plasma and glomerular filtrate
Passive reabsorption
- High–> Low
- requires no energy
In passive reabsorption cl does what ?
Follow na+
What are 2 types of passive reabsorption ?
- osmosis
- diffusion
Active reabsorption
- Low–> High
- Energy required
- Most substance are reabsorbed in pct
What is passively and actively absorbed in pct?
Passively : water, urea
Actively : na+
What is passively/reabsorbed in loop of henle ?
Water - passively, descending limb
Nacl- reabsorbed , ascending limb
Reabsorption in dct and cd
Water is reabsorbed depending in ADH
Presence of ADH does what?
- gates open
- water is reabsorbed
- urine is concentrated
- volume of urine is low
Absence of ADH
-gates closed
-remains in the filtrate
So lutes continue to reabsorb
In tubular excretion what substances are secreted?
H+, k+, ammonia
What are the 3 regulatory functions of the kidney?
- regulation of ECF concentration and volume
- electrolyte balance
- maintenance of acid-base balance
