Ureteric peristalsis is due to
Correct Answer: Pace maker activity of the smooth muscle cells in the renal pelvis
Description: Ureteric peristaltic contractions occur 1 to 5 times per minute. There are specialized smooth muscle pacemaker cells in region of renal pelvis; the contractions arise here. Ureters are innervated by sympathetic and parasympathetic nerves. Peristaltic waves may be modified by the action of splanchnic nerves (upper poion of ureter) and by hypogastric plexus (lower poion). Ureteral smooth muscle acts as a functional syncytium, it is an example of unitary smooth muscle. Mechanical stimuli (stretch) or chemical stimuli may trigger APs which are of "plateau" type.
Category:
Physiology
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now