Lecture 11: Lower Urinary Tract Flashcards
1
Q
how does peristalsis work in the ureters
A
1) longitudnal contraction and circular relaxation
2) longitudnal relaxation and circular contraction
2
Q
what is the trigone
A
- triangular area of bladder
- acts as funnel to channel urine towards neck of bladder
3
Q
what are rugae
A
folds of inner mucosal layer of bladder
4
Q
which centres in the brain prevent and initiate micturtion
A
- higher prevent micturtion by contracting internal sphincter
- cortical initiate micturtion by relaxing internal sphincter
5
Q
which nerves inhibit and facilitate micturtion
A
- hypogastric and pudendal inhibit
- pelvic facilitate
6
Q
which hormone is released to promote micturtion
A
acetylcholine by pelvic nerve
7
Q
drugs used to treat urinary incontinence
A
- oxybutinin, but linked to dementia
- imipramine for short term treatment for children
- duloxetine
- desmopressin
- mirabegron
8
Q
which hormone is released to reduce micturtion
A
noradrenaline by hypogastric nerve
9
Q
drugs used to treat urinary retention
A
- bethanecol
- zosins
