Practical 4 Flashcards
Gross anatomy of the Kidney
- renal medulla
- renal cortex
- renal column
- renal capsule
- renal pyramid
- renal papilla
- minor calyx
- major xalyx
- renal artery
- renal vein
- hilum
- renal pelvis
physiology of ureters, bladder and urethra
- hydrostatic pressure, peristalsis, and graity drive movement thru ureter
- detrusor muscle voids bladder
- ureter are same in men and women (25-30 cm)
- urethra is significantly longer in men (15-20cm) than women (4cm)
gross anatomy of ureters, urinary bladder, and urethra
- internal urethral orifice
- ureters
- detrusor muscle (inner long and outer circle layers)
- uteral openings
- trigone
- internal urethral sphincter (invol)
- urethra
- external urethral sphincter (vol)
- external urethral orifice (transitional epithelium like ureter)
10.
Male gross anatomy
- rectum
- anus
- ureter
- urinary bladder
- uretal opening
- internal urethral orifice
- prostatic urethra
- membranous urethra
- spongy urethra
- external urethral orifice
- urogenital diaphragm
female gross anatomy
- rectum
- anus
- uterus
- bladder
- internal urethral orifice
- urethra
- urogenital diaphragm
- external urethral orifice
- vagina
nephron phyiology
nephrons are the function units of the kidney
- functions are to filter blood plasma
- altra filtrate is the initial filtered substance
- urine is what the filtered substance becomes
- uses osmolytes to assist in modifying filtered substances
nephron anatomy
- bowmans capsule
- proximal convoluted tubule
- descending limb of loop of henle
- ascending limb of loop of henle
- distal convoluted tubule
- collecting duct
- papillary duct
- glomerulus
- bowmans capsule
- renal corpuscle (8+9)
- peritubular capillary
- efferent arteriole (thin, out)
- afferent arteriole (thicker, in)
renal flow (in order)
A.
Renal Arteries (8)
B.
Segmental Arteries (not shown)
–
There is no segmental vein!
C.
Interlobar Arteries (7)
–
Between lobes
D.
Arcuate Arteries (6)
–
Arcs above pyramid
E.
Interlobular Arteries (AKA Cortical Radiate) (5)
–
Between lobules
F.
Afferent Arterioles (1)
G.
Glomerulus (labeled)
–
What happens here?***
H.
Efferent Arterioles (2)
–
Efferent exits
I.
Peritubular capillaries (cortical) (4) OR Vasa recta (medullary) (3)
J.
Interlobular Veins (13)
K.
Arcuate Veins (12)
L.
Interlobar Veins (11)
M.
Renal Vein (10
Nephron histology
- proximal and distal convoluted tubes
- glomerulus
- loop of henle and collecting ducts
type of cells in proximal and distal convoluted tubes
simple cuboidal –> active (not diffusive) i.e. transport
Loop of henle(s) types of cells
- thin descending limb= simple squamous (diffusive)
- thin ascending limb= simple squamous (diffusive)
- thick ascending limb= simple cuboidal and low columnar (not diffusive)
- collecting duct= simple cuboidal
nephron histology (1225x)
- glomerulus
- mesangial= regulate filtration slit diaphragm
- podocytes= regulate filtration slit diaphragm
- simple squamous= passive diffusion - parietal latyer of bowmans capsule
- capsular/bowmans space
ureter histology (image)
- transitional epithelium of mucosa
- lamina propria of mucosa
- lumen
- mucosa
- muscularis
- adventitia
loop of henle (LOH) function
- filtration
- hydrostatic pressure in glomerulus allows blood plasma to pass proteins in bowmans space
- tubular reabsorption
- water and solutes cross renal tubule wall from lumen into ISF and eventually blood
- tubular secretion
- solutes leave vasa recta or peritubular capillaries to enter ISF and eventually luman or renal tubule
- micturition/excretion
reabsorption of PCT (prox convoluted tubule)
- glucose reabsorption
- simple cuboidal