Biology quesitons about norepinephrine...

[dallaspage]

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Q)Norepinphrine has all of the following effects except:
A) Increased heart rate
B) Increased digestion
C) Pupil dilation
D) Increased glucose concentration in the blood
E) Decresed blood supply to the skin

The solution said that the answer is B. But I think that the answer B is the function of epinephrine.
Can you explain you guys,please?

 

[nze82]

Q)Norepinphrine has all of the following effects except:
A) Increased heart rate
B) Increased digestion
C) Pupil dilation
D) Increased glucose concentration in the blood
E) Decresed blood supply to the skin

The solution said that the answer is B. But I think that the answer B is the function of epinephrine.
Can you explain you guys,please?

Epinephrine and Norepinephrine are two hormones that trigger your fight or flight response!
Under dangerous circumstances your least of worries should be digesting your food (Rest and digest response)!
So, B is NOT a function of these two hormones!

 

[Sugafoot79]

Q)Norepinphrine has all of the following effects except:
A) Increased heart rate
B) Increased digestion
C) Pupil dilation
D) Increased glucose concentration in the blood
E) Decresed blood supply to the skin

The solution said that the answer is B. But I think that the answer B is the function of epinephrine.
Can you explain you guys,please?

You might want to attack this question on the basis of sympathetic vs parasympathetic systems and all that it encompasses.
For instance, We know that the sympathetic system is the "flight or fight response" which use neurotransmitters epinephrine/norepinephrine (both are catecholamines). As a result you get:
- Increase heart rate
- Increase cardiac output
- Increase contractility
Digest: sphincters tighten
Lungs: Dilate and Relax
Eyes: Dilate
Genetals: Ejaculate - orgasm (go figure, LOL!)
Vessels: Dilate

Parasympathetic system (Rest and Digest) is quite the opposite of the sympathetic nervous system that uses Acetylcholine and reults in:
- Decrease heart rate
- Decrease cardiac output
Digest: Increase digestion, loosens sphincter and increase glands
Lungs: Tighten and constrict
Eyes(pupils): constrict
Genitals: Erection/stimulus

Now look at the question and see what you come up with😀
Hope this helps

 

[Shinpe]

You might want to attack this question on the basis of sympathetic vs parasympathetic systems and all that it encompasses.
For instance, We know that the sympathetic system is the "flight or fight response" which use neurotransmitters epinephrine/norepinephrine (both are catecholamines). As a result you get:
- Increase heart rate
- Increase cardiac output
- Increase contractility
Digest: sphincters tighten
Lungs: Dialate and Relax
Eyes: Dialate
Genetals: Ejaculate - orgasm (go figure, LOL!)
Vessels: Dialate

Parasympathetic system (Rest and Digest) is quite the opposite of the sympathetic nervous system that uses Acetylcholine and reults in:
- Decrease heart rate
- Decrease cardiac output
Digest: Increase digestion, loosens sphincter and increase glands
Lungs: Tighten and constrict
Eyes(pupils): constrict
Genitals: Erection/stimulus

Now look at the question and see what you come up with😀
Hope this helps

Just one note that epinephrine doesn't dialate all vessels. it does so to the vessels leading to muscles and some other places that help in fight or flight response. It CONSTRICTS the blood vessel leading to the intestine and contributes to decreased digestion in that way.

 

[DrTootle]

increased digestion is part of rest and digest.... parasympathetic!