Fluids and Electrolytes III Flashcards
Where renal corpuscle is secreted?
Glomerulus
This is the filtration membrane
Bowman’s Capsule
This means inflow of blood?
Afferent
This means outflow of blood?
Efferent
What are the 3 filtration membranes?
1 Capillary endothelium
2 Baseline membrane
3 Podocyte cell processes
What are the 2 toxic wastes?
Urea and creatinine
What are some toxic wastes?
1 Glucose
2 Ions
3 Blood cells
Carries fluid away from the capsule?
Proximal convoluted tubules
Other name for fluid
Filtrate fluid
Fluid that passes across the filtration membrane
Filtrate
Reabsorbs ions
Loop of Henle
Downward tube
Descending limb
Upward tube
Ascending limb
Reabsorption of water (20-25%), Secretion of renin
Distal convulated tubules
Consists of cells from the wall of the afferent arteriole and the distal tubule
Juxtaglomerular apparatus
Reabsorption of water (5-10%), Secretion of ADH and ions
Collecting ducts
Secretes ions (hydrogen, ammonium)
Collecting ducts
3 processes in the urine formation
1 Filtration
2 Reabsorption
3 Secretion
Primary site of reabsorption of soultes
Proximal tubules
Further concentrates the filtrate
Descending limb
Dilutes the filtrate by removing solutes
Ascending limb
Removes water and solutes
Distal tubules and Collecting ducts
Small tubules that acrry urine from the renal pelvis
Ureters
Hallow muscular container; stores the urine
Urinary bladder
Contracts during ejaculation to prevent urine flow
Internal Sphincter
True or False. Women are more prone to develop incontinence
True
Controls flow of urine through urethra
External sphincter
What are the layers of the urinary bladder wall?
1 Connective Tissue
2 Detrusor
3 Transitional epithelium
Urine stretches the bladder wall 300-500 mL
Micturition Reflex
What are the characteristics of a normal urine?
1 Color is clear pale yellow
2 Color variation depends on concentration of solutes
3 Urine is slightly aromatic
Normal constituents of urine
1 Water 2 Urea 3 Ions (Na, K, etc.) 4 Creatine and uric acid 5 Small amounts of Ca, Mg, and HCO3
Abnormal constituents
1 Glucose
2 Albumin
3 Ketone bodies
What are examples of urinary tract infections?
1 Cystisis
2 Pyelonephritis
3 Acute glomerulonephritis (AGN)
Infectious renal didorder caused by pathologic microorganisms
UTI
Lower UTI
1 Cystisis
2 Prostatitis
3 Urethritis
Upper UTI
Acute/chronic pyelonephritis
2 Interstitial nephritis
3 Renal abscess
Mechanisms of maintaining sterility of the bladder
1 Physical barriers of the urethra 2 Urine flow 3 Uterovesical junction 4 Antibacterial enzymes 5 Anti-adherent effects of mucosal cells of the bladder
Bckward flow from urethra to the bladder
Urethrovesical reflux
Backward flow from ureter to bladder
Ureterovesical reflux
Routes of Infection
1 Transurethral 2 Fecal contamination 3 Sexual intercourse 4 Infection from the genitourinary orifice 5 Through the bloodstream 6 Hematogenius Spread
Common route of infection
Transurethral