× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
a
5
k
5
c
5
B
5
l
5
C
4
s
4
a
4
t
4
i
4
r
4
r
4
Home Q & A Board Biology-Related Homework Help Cell Biology
New Topic  
ppk ppk
wrote...
Valued Member
On Hiatus
Posts: 3561
Rep: 58 2
12 years ago
Atropine inhibits parasympathetic activity. Discuss the effects of atropine on the heart and describe common expected side effects.
Textbook 
Human Physiology: An Integrated Approach

Human Physiology: An Integrated Approach


Edition: 8th
Author:
Read 2585 times
1 Reply

Related Topics

Replies
wrote...
#1
Educator
12 years ago
Parasympathetic stimulation of the heart has an inhibitory effect, slowing the heart rate. This inhibition is constant under normal circumstances, and without it the heart beats at the rate set by the pacemaker cells, which is higher than normal. Thus atropine, by removing the inhibition, increases heart rate. Other organs affected by atropine include any with muscarinic receptors. For example, atropine would inhibit intestinal motility, resulting in constipation. Atropine also inhibits the pupillary reflex, resulting in dilated pupils.
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  862 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 256
  
 71
  
 280
Your Opinion
Who will win the 2024 president election?
Votes: 3
Closes: November 4
Previous poll results: Should Ph.D.'s be addressed as doctors?