Module 2 Lecture 3
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What are the main functions of the kidney?
filter waste products from the bloodstream & convert the filtrate into urine
What are the ureter functions?
transport urine from kidney to bladder via peristalsis
Function of the urinary bladder?
storage of urine
What is the function of the urethra?
transports urine from bladder to outside of the body
Label where the kidneys are
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What are the kidney’s function?
Regulation of blood volume & pressure (kidneys) ➢ Regulation of erythrocyte production (kidneys) via erythropoietin ➢ Regulation of the blood’s inorganic ion balance –sodium, potassium and phosphate ions (kidneys) ➢ Acid-base balance through changes in the rates of hydrogen ion and ammonium secretion (kidneys)
Label where the kidneys are!
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Are kidneys attached to any ligaments?
Kidneys are NOT attached to any ligaments, instead they are mainly held in a position by their adipose capsule (soft tissue cushion)
What is the kidney? (organ wise)
The kidneys are a retroperitoneal organ which is behind the pariteal peritoneum
What is the renal fascia?
dense irregular tissue; anchors the kidney to surrounding tissues
What is the adipose capsule?
adipose capsule: fat with adipose tissue: cushioning and insulation
What is the renal capsule
renal capsule: dense connective tissue: maintains kidney shape; protects from pathogens
Label the kidneys ( how can you tell right from left)
Anterior and posterior orientation of vein/artery/ureter: VAU
Calices function
The renal calyces and pelvis function, in part, as reservoirs for urine received from the collecting tubules. They also conduct urine to the upper ureter.
What does the renal sinus contain?
▪ The renal sinus contains minor/major calices, renal pelvis, renal fat, blood vessels ▪ The access to the renal sinus is the renal hilum
label the blood supply of the kidneys
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What are the arteries of the kidney?
1) Renal artery 2) Segmental artery 3) Interlobar artery 4) Arcuate artery 5) Interlobular artery
What are the arteries of the kidney?
1) Renal artery 2) Segmental artery 3) Interlobar artery 4) Arcuate artery 5) Interlobular artery
What are nephrons?
the kidneys are made up of filtering units called nephrons, The renal corpuscle is composed of a capillary network called the glomerulus. • Glomerulus is surrounded by the glomerular capsule (Bowman capsule). • Produces a filtrate of blood
Label the nephrons
the parts of the renal corpucsle
What does the loop of henle do? & Label
The loop henle- absorption of ions and water
What does bowman’s capsule do?
Bowman’s capsule is involved in filtration then efferent arteriole
What does the proximal convoluted tubule do?
it reabsorbs ions, nutrients, plasma, proteins, vitamins and water, filtrate is now called tubular fluid
What does the distal convoluted tubule do?
Secrets ions into the tubular fluid and reabsorbs water