mituration

Question 1

to urinate, what must the muscles do?

Answer 1

1. detrusor muscle contract (smooth)
2. IUS open (smooth)
3. EUS open (skeletal)

Question 2

where is the maturation reflex center located at ?

Answer 2

in the pons of the brain

pontine storage center inhabits micturation
pontine micturation center promote reflex

Question 3

how does urination occurs in baby?

Answer 3

it occurs via spinal reflex.

when urine accumulates, the distention of the bladder activates stretch receptors in its walls and send to spinal cord

Question 4

what happens in infant from the age of 2-3?

Answer 4

the descending circuits from the brain have matured enough to override reflexive urination

Question 5

in female, how is urination affected after childbirth?

Answer 5

the pelvic floor is stretched and sphincter is weakened

cough and sneeze will cause urine to leak

Question 6

what will happen during parasympathetic activity? (fight or flight)

Answer 6

detrustor will contract

internal sphincter will relax

Question 7

what will happen during parasympathetic activity?

Answer 7

detrustor will relax

internal sphincter will contract

Question 8

to hold pee what happens?

Answer 8

the higher order function in the brain, pontine storage center inhibits micturation by
decreasing parasympathetic activity
increasing sympathetic activity
increasing somatic motor activity

Question 9

what does pontine micturation center do?

Answer 9

they promote micturation