QuestionSBA
QuestionChoice
The internal urethral sphincter undergoes involuntary relaxation for urine expulsion. The structure here is the detrusor muscle of the bladder.
10040904
d
Involuntary relaxation of urethra for urine expulsion
QuestionChoice
The internal urethral sphincter undergoes involuntary relaxation for urine expulsion. The structure here is the detrusor muscle of the bladder.
10040905
e
Involuntary contraction of urethra for urine expulsion
QuestionChoice
The external urethral sphincter undergoes voluntary relaxation for urine expulsion. The structure here is the detrusor muscle of the bladder.
10040903
c
Voluntary relaxation of urethra for urine expulsion
QuestionChoice
The detrusor muscle of the bladder contracts rather than relaxes in micturition to expel urine.
10040902
b
Relaxation during micturition
QuestionChoice
The detrusor muscle, a smooth muscle layer of the bladder wall, contracts during micturition (urination) to expel urine. This contraction is controlled by the parasympathetic nervous system and works in coordination with the relaxation of the internal and external urethral sphincters to ensure smooth urine flow from the bladder.
10040901
a
Contraction during micturition
Concept
Chapter
2693
5783
Urinary bladder
Topic
308
Pelvic anatomy
20479
Picture
3078
33 - Bladder.png
images/igd2sf7a1727763782687.jpg
images/igd2sf7a1727763782687_256.jpg
images/igd2sf7a1727763782687_512.jpg
XxgGFQK9RYSZ94uHU7SZh0iQeQFp
Topic
308
Pelvic anatomy
What is the specific function of the structure labelled?
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a