Lecture 2 - Structure Flashcards
What is the name used for peeing
Micturition
What does the urinary tract consist of
Kidneys
Ureters
Urinary bladder
Urethra
How big are the kidneys
4-5” long
2-3” wide
1” thick
What protects the kidneys
11-12th ribs
Where do the blood vessels and the ureter enter
The hilus of the kidneys
What does the renal capsule do
Maintains the kidneys shape
What does the adipose capsule do
Protects the kidney from any trauma
What does the renal fascia do
Holds the kidneys against the back body wall
What does the kidneys consist of
Cortex Medulla Pyramids Papillae Columns Calyces Pelvises
What is the kidneys functional unit
Nephron
How many functional units does the kidney have
1 million
What does the glomerulus do
Filters the blood and stops protein and blood entering urine
What part forms urine
Glomerular filtrate
What does the tubule do
Re absorbs an secretes fluids and electrolytes to adjust urine composition and maintain body fluid homeostasis
What does a nephron consist of
Corpuscle - fluid is filtered
and a
Tubule - where filtered fluid passes
What are the 3 functions of the nephron
Glomerular filtration
Re absorption
Tubular secretion
What does a tubule consist of
PCT
Loop of henle
DCT
Papillary ducts
DCT
Collecting duct
Put it in order In which they drain into
DCT drain into the collecting ducts.
Collecting ducts drain into papillary ducts
What does the loop of henle consist of
Descending limb
Think ascending limb
Thick ascending limb
How many types of nephrons are there
2 types
Cortical nephron
Juxtamedullary nephron
What is the major difference in the cortical nephrons and the juxtamedullary nephrons
Cortical nephron has a short loop of henle and the juxtamedullary nephron has a long loop of henle
What is the bowmans capsule
Network of capillaries in the glomerulus
What artery supplies the kidney
Renal artery