12 Questions
What activates the parasympathetic nervous system to lead to detrusor contraction and internal sphincter relaxation during the voiding phase?
Intense level stretch activating PMC
What effect does a spinal cord injury between the pons and sacral spinal segment have on micturition?
Overactive bladder and detrusor-sphincter dyssynergia
What percentage of Polycystic Kidney Disease (PKD) cases are due to autosomal dominant polycystic kidney disease?
85%
Where are the genes located that code for polycystin-1 and polycystin-2 proteins in PKD?
Chromosome 16 and chromosome 4
What increases the tendency to form kidney stones according to the text?
Dehydration
What are kidney stones made of typically, according to the text?
Calcium stones and other types like magnesium ammonium phosphate or uric acid
What is the main function of the kidney?
Regulates the extracellular fluid environment
What happens during the storage phase of micturition?
Sympathetic activation leads to detrusor relaxation
Which part of the urinary system is responsible for storing urine?
Urinary bladder
Which hormone is secreted by the kidneys to regulate erythropoiesis?
Erythropoietin
What is the function of nephrons in the urinary system?
Filter blood and produce urine
Which division of the nervous system controls the "guarding reflex" during micturition?
Somatic nervous system
Test your knowledge on the structure and functions of the kidneys and urinary system. Learn about the physiology of the kidneys with a focus on the teachings of Sompol Tapechum, M.D., Ph.D. from the Department of Physiology at Faculty of Medicine Siriraj Hospital, Mahidol University.
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