How Does the Bladder Work?

1. How Does the Bladder Work? Presented by (insert name of presenter here)

2. Urinary System Theurinary systemis responsible for getting rid of waste products in the form of urine.

3. Urinary System Kidney:Removes waste products from the blood and produces urine Ureter:Moves the urine from the kidneys to the bladder Bladder:Holds the urine until it is full Urethra:The tube through which the urine flows out of the body

4. Anatomy of the Urinary Tract Female Male Kidney Upper Urinary Tract Ureter Bladder Lower Urinary Tract Urethra

5. Anatomy of the Female Urinary Tract Ureter Abdominal muscles Rectum Bladder Pubic bone Pelvic floor External urethral sphincter Urethra Vagina

6. Anatomy of the Male Urinary Tract Abdominal muscles Ureter Rectum Bladder Pubic bone Internal urethral sphincter Prostate gland Urethra Pelvic floor Penis External urethral sphincter

7. Structure of the Bladder Ureter Detrusor smooth muscle External urethral sphincter Prostate gland Pelvic floor

8. Detrusor Muscle (x25) Mucous membrane Smooth muscle and connective tissues

9. Muscarinic Receptors in the Parasympathetic Nervous System Visual disturbances Iris/ciliary body Lacrimal gland CNS Dry mouth Parotid gland Sublingual gland Submaxillary gland Palpitation/Tachycardia Heart Liver Stomach Colon Constipation Small intestine Detrusor muscle Urinary retention

10. Micturition Reflex Brain Direction of nerve impulse Spinal cord Bladder Pelvic floor

11. Bladder Control System bladder muscle bladder muscle bladder bladder urine urine Urethra closed Urethra open Sphincter Muscles Squeezed Shut Sphincter Muscles Relaxed

12. Bladder Filling & Emptying Cycle 1. Bladder fills Detrusor muscle relaxes 2. First desire to urinate (bladder half full) Urethral sphincter contracts The cycle of bladder filling and emptying Detrusor muscle contracts Urethral sphincter relaxes Urination 3. Urination voluntarily inhibited until time and place are right

13. Normal Control of Urination

14. OveractiveBladder