Does the rectum have taste buds?


by LamentCat
Tags: buds, downstairs, rectum, taste, tastebuds
LamentCat
LamentCat is offline
#1
Dec13-13, 03:05 PM
P: 2
Does the rectum have taste buds?

Looking at it from a Biology view, clearly it isn't possible.

But my real question is what causes your rectum to burn after passing last nights Vindaloo?

(Sorry if that was graphic and i wish to offend nobody but this is a serious question that has bothered me for sometime.)
Phys.Org News Partner Biology news on Phys.org
Chickens to chili peppers: Scientists search for the first genetic engineers
The malaria pathogen's cellular skeleton under a super-microscope
Deadly human pathogen Cryptococcus fully sequenced
phinds
phinds is offline
#2
Dec13-13, 03:12 PM
PF Gold
phinds's Avatar
P: 5,679
There are sensitive membranes just inside, that's why. If you were to rub oil of pepper up inside your nose, you would feel a burning sensation that is aside from the smell and occurs for the same reason as what you are asking about.
LamentCat
LamentCat is offline
#3
Dec13-13, 03:18 PM
P: 2
So its the capsaicin from the pepper that burns if you were to put oil of pepper up your nose, but capsaicin is diluted by the hydrochloric acid in our stomachs which means by the time it has passed through the large intestine the capsaicin is no hotter than a bell pepper? (which is 0 on the scoville scale)

Yanick
Yanick is offline
#4
Dec13-13, 03:42 PM
P: 339

Does the rectum have taste buds?


Capsaicin binds to receptors which have nociceptive (pain sensing) properties as well as a role in body temperature regulation. The tissues which express these receptors are widespread and, conjecture here, are probably found in the anus/rectum which may explain why it burns on the way in and out, but not really in between.

For further reading you can read the wiki article: http://en.m.wikipedia.org/wiki/TRPV1
johnnymorales
johnnymorales is offline
#5
Dec26-13, 08:41 PM
P: 3
Quote Quote by LamentCat View Post
So its the capsaicin from the pepper that burns if you were to put oil of pepper up your nose, but capsaicin is diluted by the hydrochloric acid in our stomachs which means by the time it has passed through the large intestine the capsaicin is no hotter than a bell pepper? (which is 0 on the scoville scale)
You are confusing the sense of taste with the sense of pain.

In the case of hot peppers most people consider it a pleasurable sensation, but nevertheless what we feel is a result of our sense of pain being triggered by the capacin.

As you know we can feel pain in a lot of places.

So what is happening in your hole is the same thing that happened when you first ate the food, the capacin is stimulating your pain receptors.

That that happens to you means you are probably off in regards to our stomach acid being able to completely neutralize/dilute it.

Some of it evidently makes it all the way through to your rectum to cause the burning sensation
Chronos
Chronos is offline
#6
Dec26-13, 09:43 PM
Sci Advisor
PF Gold
Chronos's Avatar
P: 9,180
Capsaicin is not easily broken down by the digestive system. A significant fraction remains by the time it exits the body. You can easily confirm this by tasting your excrement the night after a jalapeno fest. OK, OK, that was a joke.
gravenewworld
gravenewworld is offline
#7
Dec26-13, 10:26 PM
P: 1,389
A lot of questions in medicine can be answered if you understand a little bit of developmental biology. Look up how the mouth and anus form in deuterostomes. It helps explain why your bum has the same receptors as your mouth.


Register to reply

Related Discussions
Latus rectum General Astronomy 0
Latus rectum for the non-mathematician Differential Geometry 3
Angular Momentum vs Latus Rectum Advanced Physics Homework 3
taste buds question. Biology 2
Semi Latus Rectum Proof - b^2/a Introductory Physics Homework 5