Ch.25: Urinary System Part 3: Flashcards
Physical characteristics of Urine:
Color: yellow color due to urochrome
pH: 4.5-8.2
gravity: 1.001-1.035
Chemical components of Urine (normal)
urea, nitrogenous waste, uric acid, creatine, Na+, K+, PO4, SO4
Abnormal components of Urine include:
glucose, white blood cells, proteins, bile pigments
The __________ are slender tubes that convey urine FROM THE KIDNEYS TO THE BLADDER. Play an active role in transporting urine
ureters
The ureter wall has three layers inner to outer:
Mucosa
Muscularis
Adventitia
The _____ ______ is a smooth collapsible muscular sac that stores urine temporarily
urinary bladder
The unit storafe capacity of the urinary bladder is
600-800 mL
The _________ is a thin-walled muscular tube that drains FROM THE BLADDER AND CONVEYS IT OUT OF THE BODY
urethra
_________ _______ ________ controlled by the autonomic nervous system , keeps the urethra closed when urine is not being passed and prevents leaking between voiding
Internal urethral sphincter
_________ ______ _______ this sphincter is formed of skeletal muscle and is voluntarily controlled.
External urethral sphincter
__________, also called voiding. urination. The act of emptying the urinary bladder
Micturition