A&P Urinary System Flashcards
Where are the kidneys located?
They are bean-shaped organs that are located in the retroperitoneal space.
Between last thoracic and third lumbar vertebrae
What is the renal hilus?
It is where the ureter leaves the kidney as do the blood vessels, lymph vessel and nerves
What is the functional unit of the kidney?
Nephrons
How does the urine drain?
Collecting tubules into papillary ducts, into a calyx, the renal pelvis and finally the ureter.
What are the two types of nephrons?
Cortical and juxtamedullary
What are the nephrons made up of?
Large terminal end, proximal convoluted tubule, loop of Henley and the distal convoluted tubule.
What forms the renal corpuscle?
Bowmans capsule and glomerulus.
What are ureters?
Extend from renal pelvis to bladder
Enters the trigone area of the bladder
25 to 30cm long
What type of muscle is found in the ureter?
Smooth muscle
What is the bladder?
Distensible muscular organ
Held in place by peritoneum
What is the detrusor muscle also known as?
Muscularis of bladder
What reflex leads to urination?
Mictuirion reflex
What is the position of bladder in males?
Directly anterior to rectum
What is the position of bladder in females?
Anterior to vagina and inferior to uterus.
What is the urethra?
Tube leading from bladder to exterior of body
