Jessica Gonzalez Flashcards
Exercise 40 Urinary System Study cards
What are the three capillary beds vascular supply consist of?
Glomerulus, peritubular capillary bed, vasca recta
What is the act of emptying the bladder?
Voiding OR micturition
What two sphincters is the opening between the bladder and the urethra?
internal urethral sphincter- composed of smooth muscle.
External urethral sphincter- composed of skeletal muscle.
When does micturition occur?
When both internal and external sphincter relax and detrusor contracts, all at the same
Incontinence
lack of voluntary control over the external urethral sphincter.
What are circumstances in which a person can be incontinent?
Children under the age of 2 or in older children and adults it can result from spinal cord injuries or urinary tract pathology
Less water means
More ADH
Caffeine and alcohol have what relationship with ADH?
inhibit the release of ADH
Blood composition depends on what three major functions
Diet, cellular metabolism, and urinary output
Characterstics of urine
Color and Transparency
What color is freshly voided urine?
Usually clear or pale yellow
What does cloudy urine usually indicate?
UTI
Why may urine be an abnormal color?
Can be from foods like beets,
Beeturia is the name given for what?
The name given when urine is red as a result of eating too many beats
What is the pH of urine
4.5-8.0. Averages 6.0, slightly acidic.
