urinary system Flashcards
regulates red blood cell synthesis; regulation of blood volume and blood pressure; reddish bean shape organ; excretion of waste and foreign substances
kidney
what are the three layers of tissues in the kidney?
renal capsule
adipose capsule (fatty tissue)
renal fascia
tissues surrounds each kidney
renal capsule
protects the kidney from mechanical shock
adipose capsule (fatty tissue)
binds the kidney to the abdominal wall
renal fascia
outer part of the kidney
renal cortex
inner part of the kidney
renal medulla
cone shape located at the boundary between cortex and medulla
renal pyramids
a funnel shape structure; surrounds the tip of the renal pyramid
renal calyx
calyces from all pyramids to join to form a larger funnel
renal pelvis
greek word for kidney; functional unit of kidney
nephron
how many nephrons does the kidney have
1.3 million nephrons
transports urine from the renal pelvis of one kidney to the urinary bladder; 25-30 cm long
ureters
hollow distensible muscular organ situated in the pelvic cavity posterior to the pubic symphysis;
urinary bladder
how much urine can a urinary bladder hold
1000mL
a muscle in the urinary bladder
detrusor muscle
a small tube leading from the internal urethral orifice in the floor of the urinary bladder to the exterior of the body; 4 cm (1.5 in) female; 20 cm (8 in) male
shared terminal duct of the reproductive and urinary system; it serves as a passageway for both semen and urine
urethra
male urethra are divide into 3 parts
prostatic
membranous
spongy/ penile
3 cm long; passes through the prostate gland
prostatic
1 cm in length passes through the floor of the pelvis and is surrounded by the external urinary sphincter
membranous
passes through the length of the penis
spongy/ penile
the triangular shape portion of the bladder located between the opening of the ureters and the opening of the urethra
trigone
