Top Posters
Since Sunday
7
6
o
5
b
4
s
3
j
3
b
3
s
3
m
3
B
3
K
3
g
3
New Topic  
lisa_lordes lisa_lordes
wrote...
Posts: 411
Rep: 0 0
7 years ago
Many people, when they have a sinus headache, often use decongestant nasal sprays. Why are such sprays useful?
A) They dry out the breathing passageways in the pharynx, making it easier to breathe.
B) They have a pain-blocking effect in the brain.
C) They reduce the symptoms of sore throat inflammation, which exacerbates the pain.
D) They reduce swelling, allowing the sinuses to drain.
Textbook 
Biology of Humans: Concepts, Applications, and Issues

Biology of Humans: Concepts, Applications, and Issues


Edition: 5th
Authors:
Read 99 times
1 Reply
Replies
Answer verified by a subject expert
R.FrantR.Frant
wrote...
Top Poster
Posts: 946
7 years ago
Sign in or Sign up in seconds to unlock everything for free
More solutions for this book are available here
1

Related Topics

lisa_lordes Author
wrote...

7 years ago
Thanks
wrote...

Yesterday
Just got PERFECT on my quiz
wrote...

2 hours ago
This helped my grade so much Perfect
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  1061 People Browsing
 121 Signed Up Today
Related Images
  
 4464
  
 631
  
 116
Your Opinion
Who's your favorite biologist?
Votes: 587