Urinary Flashcards
Functions of the Urinary System
1) Forms/store Urine 2) Excrete urin 3) Blood Volume regulation 4) RBC production
Urinary Organs
Kidneys 2) utterers 3) Urinary Bladder 4) Urethra
Kidneys Location and layers
Retroperitoneal 4 Layers: Fibrous capsule ;Perinephric fat; Renal fascia; Paranephric Fat
Kidneys Made from
1) Cortex 2) Medulla 3) Column 4) Pyramids(produces urine) 4) Minor and Major Calyces 5 Renal Pelvis 6) Ureters
What parte of the Kidney projects into the minor calyces
The apex (papillae)of the Pyramids
What doe the Ureter connect
Kidneys and Bladder
Lobes of the Kidney
Pyramid and cortical tissue
How Blood Travel through Kidney
) Renal Artery -> Segmental Art -> interlobar art -> arcuate art -> interlobular art -> afferent arteriole -> Glomerulus -> efferent arteriole -> Peritubular OR vasa recta -> interlobular VEINS -> arcuate Veins -> interlobar veins -> Renal Veins
What are the Function units of the Kidney(were urine is formed)
Nephron
Nephron Parts
1) Renal Corpuscle (Glomerulus and Bowman capsule) 2) Proximal convoluted tubule 3) Loop of Henle 4) Distal convoluted tubule 5) Collecting ducts
Types of Nephrons
1) Cortical; edge of cortex short loop 2) Juxtamedullary; cortex medal border Long loop
Urine Formation by Nephrons
1) Filtration 23) Tubular reabsorption 3) Tubular secretion
Bowman’s Capsule (glomerular)
Visceral layer with Podocytes; pedicetts and filtration slits and a outer parental layer
Glomerulus has what Char
Fenestrated
Kidney tissue
simple Cuboidal
Char of Proximal Convoluted tubule
Simple cuboidal; Microvilli; Cell reabsorbs nutrients and water
Loop of Henle
Reabsorbs water and Ions; Has Descending Limb and Ascending limb
Char of Descending Limb of Loop of Henle
(top)Thick; simple cuboidal Thin; simple squamous
Ascending
Goes from Thin to thick. Thick; simple cuboidal while thin is simple squamous
Distal convoluted tubule
1) Simple cuboidal 2) Microvilli 3) Water & Sodium reabsorption 4) Aldosterone and ADH act here(water retention)
Collection Duct
1) Simple cuboidal 2) Merge to form Papillary Duct -> minor Calyx 3) ADH acts here
Juxtaglomerular apparatus
1) Juxtaglomerular cells 2) Macula densa cells 3) regulates blood Pressure
1) Juxtaglomerular cells
Smooth muscle of afferent arteriole
Macula densa cells of Juxtaglomerular apparatus
In the Distal Convoluted Tubule(DCT) 2) Monitor electrolyte concentration and stimulate Juxtaglomerular cells to release RENIN
RENIN (hormone)
Act to release Aldosterone and ADH(water retention in the Macula densa in the Juxtaglomerular apparatus
Ureter
Connects Kidneys to Urinary bladder 2) Retroperitoneal 3) 2 Layers
Layer so of Ureters
1) Mucosa (transitional Tissue) 2) Muscularis ( inner longitudinal. Outer circular Smooth muscle)
Urinary Bladder Location
Posterior to pubic symphysis and Retroperitoneal
Function of Urinary Bladder
Holds Urine
Urinary Bladder Shape and Layers
Triangular shaped(trigone) 2) Mucosa (transitional with rugae) 3) Muscularis with detrusor muscle
Detrusor Muscle
Smooth muscle in the Bladder; make you pee
Urethra Connects
Bladder to exterior
2 sphincters of the Urethra
Internal Urethral; part of detrusor 2) external Urethral (SKELETAL MUS)
Female urethra
Urinary function and stratified squamous
Male Urethra Function
Urinary and reproductive
Parts of Meal urethra
Prostatic; transitional 2) Membranous; pseudostrat and Columnar 3) Spongy pseudo strat & strat squamous
