DAT ch 12 Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Question | Answer |
Kidney | composed of one million nephrons; outer cortex, inner medulla, and renal pelvis |
ureter | where urine leaves kidneys |
Nephrons | composed of renal corpuscle and renal tubule; reabsorbs nutrients, salts, and water |
Renal corpuscle | glomerulus (sieve) surrounded by Bowman’s capsule |
Renal tubule | proximal convoluted tubule, loop of Henle, distal convoluted tubule, collecting duct |
Urine Formation | filtration, secretion, and reabsorption |
Filtration | fluid that goes through glomerulus (afferent arteriole => glomerulus => efferent) to the rest of the nephron; passive process; driven by hydrostatic pressure of blood |
particles that are too large to filter through glomerulus(blood and albumin) | remain in circulatory system |
Secretion | substances such as acids, bases, and ions (K+) are secreted by both passive / active transport; secreted from peritubular capillaries |
Reabsorption | glucose, salts, AA, and water are reabsorbed from filtrate & return to blood; takes place namely in PROXIMAL convoluted tubule (active) |
Concentration | when dehydrated volume of fluid in bloodstream is low so you need to make small amounts of concentrated urine => ADH prevents water loss by making distal tubule permeable to water |
when Blood Pressure is low => | aldosterone increases reabsorption of Na+ by distal nephron which increases water retention (serum [Na+] increases BP) |
Selective permeability of the tubules establishes | osmolarity gradient in the surrounding interstitial fluid |
Urine is hypertonic to the blood and contains | high urea and solute concentration. |
Osmolarity Gradient | created by exiting / entering of solutes; increases from cortex to medulla |
Counter Current Multiplier | descending loop permeable to water & ascending is permeable to salts / ions; this makes the medulla very salty and facilitates water reabsorption by small intestine |
Bacteria in large intestine | main source of vitamin K |
Created by:
xeenie
Popular DAT sets