× Didn't find what you were looking for? Ask a question
Top Posters
Since Sunday
G
4
K
3
o
3
3
m
2
c
2
r
2
p
2
s
2
s
2
b
2
c
2
Home Q & A Board Biology-Related Homework Help Anatomy and Physiology
New Topic  
livestrong136 livestrong136
wrote...
Posts: 324
Rep: 7 0
10 years ago
What effect, if any, do you think that a β1-adrenergic receptor agonist would have on the isolated frog heart?
Read 341 times
1 Reply

Related Topics

Replies
wrote...
#1
10 years ago
This receptor increases cardiac output by:

1) Increase heart rate in sinoatrial node (SA node) (chronotropic effect)
2) Increase atrial cardiac muscle contractility. (inotropic effect)
3) Increases contractility and automaticity of ventricular cardiac muscle.
4) Increases conduction and automaticity of atrioventricular node (AV node)

An antagonist would do the opposite of those listed above, by preventing it from happening.
New Topic      
Quick Reply
Explore
Post your homework questions and get free online help from our incredible volunteers
  1143 People Browsing
Start New Topic Take the Tour CoursesNew Study Tools Topics Trending Browse by Textbook
Live Chat
Related Images
  
 800
  
 686
  
 911
Your Opinion
Which 'study break' activity do you find most distracting?
Votes: 820
Previous poll results: Which industry do you think artificial intelligence (AI) will impact the most?