my class work in Urinary system

1. BY: HEMANT CHANDWANI
NARESH MALI
SADHISH JAIN

2. OVERVIEW OF URINARY SYSTEM
 Consist of 2 kidneys, 2
ureter , 1 urinary bladder
and 1 urethra.
 Functions of Urinary
System
 Maintain stable internal
environment
 Remove waste products
 Adjust water and
electrolyte levels
 Maintain correct pH

3. FUNCTION OF THE URINARY SYSTEM
 KIDNEY – regulate blood
volume and composition,
regulate pH, produce 2
hormones and excrete waste
 URETERS- transport urine from
kidney to urinary bladder
 URINARY BLADDER- store
urine and expels through urethra
 URETHRA- discharge urine from
the body

4. Figure 9.2 – Longitudinal section of a kidney illustrating the internal
structures.

5. The structure of a nephron.

6. URETERS
 The ureters transport
urine from the renal pelves
of the right and left kidneys
to the urinary bladder
 10 to 12 in long
 diameter from 1-10 mm

7. URINARY BLADDER
 Receives urine from ureters
 Stores urine
 Holds 250 mL of urine
 Excretes through urethra
 Involuntary muscle action causes:
 Bladder to contract
 Internal sphincter to relax
 Voluntary muscles control external sphincter

8. URETHRA
Tubular canal lined with mucous membrane
 1½ inches long in females
 8 inches long in males
Carries urine from bladder to outside of body
External opening is called urinary meatus
Releasing urine from body is called
 Micturition
 Voiding
 Urination

9. URINARY SYSTEM DISEASES
 Urinary tract infection (UTIs)
 Interstitial cystitis (IC)
 Kidney stones
 Bladder cancer
 Hematuria
 Dysuria