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Urinary System
Human Anatomy - Dr. Gardner
35
Anatomy
Not Applicable
12/08/2011

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Term
What speciality in medicine focuses on the urinary system?
Definition
Urology
Term
What are the organs of the urinary tract?
Definition
Ureters
Urinary Bladder
Urethra
Term
List the functions of the urinary system.
Definition
Reculation of pH of the blood
Regulation of electrolytes
Remove waste products
Storage of urine
Extretion of urine
Blood volume regulation
Regulation of erythrocyte production
Term
In relation to the peritoneum, what is the position of the kidneys?
Definition
Retroperitoneal
Term
Where are the kidneys located?
Definition
The superior pole of each kidney is about at the level of T12.
The inferior pole is about at the level of L3
Term
One kidney is lower than the other. Which one? Why?
Definition
Right kidney
Large size of the right lobe of the liver
Term
In what part of a kidney do the vessels, nerves, and ureters connect to it?
Definition
Hilum
Term
What internal space of a kidney houses the renal arteries, renal veins, lymphatic vessels, nerves, the renal pelvis, renal calyces, and fat?
Definition
Renal Sinus
Term
What layer of dense irregular connective tissue covers the outer surface of the kidney maintaining its shape, protecting it from trauma, and preventing the spread of infectious pathogens?
Definition
Fibrous (Renal) Capsule
Term
What layer of lipid-filled cells completely surrounds the kidney and offers cushioning and insulation?
Definition
Perirenal Fat
Term
In a coronal section, what is the outer, granular layer?
Definition
Renal Cortex
Term
In a coronal section what is the darker, inner layer?
Definition
Renal Medulla
Term
In the darder, inner layer of a kidney seen in a coronal section, what structures lay between the triangular shaped structures?
Definition
Renal Columns
Term
What part of a renal pyramid projects into the renal sinus?
Definition
Renal Papilla
Term
What funnel-shaped structure attaches to a renal pyramid to collect urine?
Definition
Minor Calyx
Term
The funnel-shaped structures attached to the renal pyramids within the renal sinus merge to from what still larger structures?
Definition
Major Calyces
Term
What large, funnel-shaped structure within the renal sinus collects urine and delivers it to the ureter?
Definition
Renal Pelvis
Term
What is the main blood supply to the kidney?
Definition
Renal Artery
Term
What vein drains the kidney?
Definition
Renal vein
Term
What long, fibromuscular tubes conduct urine from the kidneys to the urinary bladder?
Definition
Ureters
Term
What is the location of the ureters?
Definition
Retroperitoneal
Anterior to the transverse vertebral processes
They cross in front of the external iliac arteries
They enter the bladder at the posterolateral wall of its base
Term
What rhythmic movements of smooth muscle propel urine along the legnth of a ureter?
Definition
Peristalsis
Term
Pain from a ureter is projected to what dermatomes? Where are these located?
Definition
T11-L2 (Loin-Groin)
Lower Back
Term
What organ serves as a reservoir for urine?
Definition
Urinary Bladder
Term
What is the general location of the urinary bladder?
Definition
Posterior to the pubic symphysis
Term
What is the specific location of the bladdre in males?
Definition
Superior to the prostate gland
Anterior to the rectum
Term
What is the specific location of the bladder in females?
Definition
Inferior to the uterus
Anterior to the vagina
Term
What is the position of the urinary bladder in relation to the peritoneum?
Definition
Retroperitoneal
Term
Where do the ureters enter the bladder?
Definition
Posterolateral Wall
Term
What triangular area within the urinary bladder has the ureteral orifices and the urethral opening as its borders?
Definition
Trigone
Term
What fibromuscular tube conducts urine to the exterior of the body?
Definition
Urethra
Term
What circular array of smooth muscle guards the orifice of the urethra?
Definition
Internal Urethral Sphincter
Term
What circular array of skeletal muscle voluntarily controls the flow of urine through the urethra?
Definition
External Urethral Sphincter
Term
How long is the female urethral?
Definition
3-5 cm
Term
How long is the male urethra?
Definition
18-20 cm
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