The Urinary
System
BIO 210: MILESTONE 3
DECEMBER 2024
NAME
, The urinary system is in the abdominal and pelvic cavities (abdominopelvi
cavity) and consists of:
Two kidneys: bean-shaped, the size of a fist, retroperitoneal between th
and L3 vertebra in the rear wall (dorsal) of the abdominal cavity (left and
The Urinary hypochondriac regions). The right kidney is slightly lower than the left du
the presence of the liver
System: Two ureters: tubes that are 8-10 inches in length, run down the back of
Location & abdominal wall (posterior to the peritoneum), proximal ends connect to
renal pelvis of the kidney, distal ends connect to the urinary bladder
Organs One urinary bladder: hollow organ located in the hypogastric (pubic) reg
In females, it is anterior to the uterus. In males, it is anterior to the rectu
One urethra: In females, a 1 ½ inch tube which runs through the pelvic fl
and is anterior to the vaginal opening. In males, an 8-inch tube runs thro
the perineum to the tip of the glans penis.
◦ Fun fact, in males the urethra is part of both the urinary and reproductive sys
because it carries urine and sperm.
System
BIO 210: MILESTONE 3
DECEMBER 2024
NAME
, The urinary system is in the abdominal and pelvic cavities (abdominopelvi
cavity) and consists of:
Two kidneys: bean-shaped, the size of a fist, retroperitoneal between th
and L3 vertebra in the rear wall (dorsal) of the abdominal cavity (left and
The Urinary hypochondriac regions). The right kidney is slightly lower than the left du
the presence of the liver
System: Two ureters: tubes that are 8-10 inches in length, run down the back of
Location & abdominal wall (posterior to the peritoneum), proximal ends connect to
renal pelvis of the kidney, distal ends connect to the urinary bladder
Organs One urinary bladder: hollow organ located in the hypogastric (pubic) reg
In females, it is anterior to the uterus. In males, it is anterior to the rectu
One urethra: In females, a 1 ½ inch tube which runs through the pelvic fl
and is anterior to the vaginal opening. In males, an 8-inch tube runs thro
the perineum to the tip of the glans penis.
◦ Fun fact, in males the urethra is part of both the urinary and reproductive sys
because it carries urine and sperm.