Question 12 this involuntary smooth muscle relaxes to open...

Name: question 12 this involuntary smooth muscle relaxes to open the urethra odetrusor muscle odartos muscle internal urethral sphincter external urethral sphincter external ureteral sphincter 50862
Uploaded: 2023-05-05T17:46:57-08:00
Duration: 1 min 57 s
Channel: Adi S
Description: question 12 this involuntary smooth muscle relaxes to open the urethra odetrusor muscle odartos muscle internal urethral sphincter external urethral sphincter external ureteral sphincter 50862

Question 12 This involuntary smooth muscle relaxes to open the urethra. Odetrusor muscle Odartos muscle internal urethral sphincter external urethral sphincter external ureteral sphincter

The bladder is a highly distensible organ the walls of which are comprised of irregular bands of smooth muscle collectively called the detrusor muscle and an interior surface lined with transitional epithelium- both of which are structurally suited for the inevitable large fluctuations of bladder volume. Micturition , the proper term for urination, occurs when stretch receptors in the bladder wall transmit nerve impulses to the spinal cord to generate a spinal reflex. An interplay of involuntary and voluntary actions by the internal and external urethral sphincters allow for control of this process. Use available models, the images supplied, your textbook, and/or your Practice Atlas for Anatomy and Physiology to identify the following structures. 1. Ureters 2. Detrusor muscle 3. Lumen 4. Transitional epithelium 5. Urethra 6. External urethral sphincter 7. Internal urethral sphincter

Adi S.