Quiz

BuzzFeed Staff

Science

How well do you know the gnarliest parts of the human body?

Can You Answer These Embarrassing Body Questions?

According to the [Red Cross](http://www.redcrossblood.org/learn-about-blood/blood-facts-and-statistics).

10 pints!

90% of your body is (by number of cells) [straight-up bacteria](http://www.scientificamerican.com/article/strange-but-true-humans-carry-more-bacterial-cells-than-human-ones/).

Ten times!

Though tons of things can affect it, the average male ejaculate is 3.2 milliliters, based on a [survey](https://www.ncbi.nlm.nih.gov/pubmed/1169171) of 1,300 men.

3 ml!

That fella is _Demodex folliculorum_, a [common feature](http://www.ncbi.nlm.nih.gov/pubmed/16033750) of many human eyebrows.

Your face!

Pubic hair is a bit different from head hair! Instead of forming a round shape, the hair is [oval](http://www.bbc.co.uk/science/humanbody/body/articles/lifecycle/teenagers/hair_and_sweat.shtml).

The oval one!

It would actually weigh around [eight pounds](http://science.nationalgeographic.com/science/health-and-human-body/human-body/skin-article.html) on its own!

22 square feet!

There's [a lot](http://science.nationalgeographic.com/science/health-and-human-body/human-body/digestive-system-article.html) going on in there!

30 feet!

[Drip drop](http://www.unc.edu/courses/2008ss2/obio/720/001/2008_Readings/070308_saliva_review.pdf)!

Up to 1.5 liters!

That's a crab louse!

The sweat itself doesn't smell, but the [chemicals](http://www.buzzfeed.com/alexkasprak/sweaty-facts-about-sweat-sure-to-make-you-sweat) produced by hungry, sweat-loving bacteria do!

It's the bacteria!

Been that way since [1994](http://www.cdc.gov/std/stats13/chlamydia.htm).

Chlamydia

Most of the gases in your fart, like oxygen, nitrogen, carbon dioxide, hydrogen, and methane, are odorless. The odor comes from a fraction of a percent that are [mainly sulfur-based chemicals](http://www.sciencedirect.com/science/article/pii/S1570023209003559).

Less than 1%!

You've got some work to do when it comes to knowing gross body trivia, but your social life is probably better because of it!

Grossamateur!

You've got some good reasoning skills, and you seem to handle your bodily fluid questions with grace. Nice work!

Grossthusiast!

You really know your way around the human body and aren't afraid to get down and dirty with the facts. Nice work!

Grossologist!

About BuzzFeed Community

Community Brand Guidelines

BuzzFeed Community

Sorry, this content is <i>no longer</i> supported.

BuzzFeed Community Guidelines

BuzzFeed Community Leaderboard

BuzzFeed News has breaking stories and original reporting on politics, world news, social media, viral trends, health, science, technology, entertainment, and LGBTQ issues.

All the best animals on the internet. The snuggle is real.

BuzzFeed has breaking news, vital journalism, quizzes, videos, celeb news, Tasty food videos, recipes, DIY hacks, and all the trending buzz you’ll want to share with your friends. Copyright BuzzFeed, Inc. All rights reserved.

BuzzFeed News | Breaking News | Original Reporting | News Analysis

Animal Pictures and Videos - Adorably from BuzzFeed

Name

Thanks for subscribing!

Stay up to date with our latest BuzzFeed video. Enter your email to subscribe!

Oops! Upload an image or add text to submit.

BuzzFeed has the hottest, most social content on the web. We feature breaking buzz and the kinds of things you'd want to pass along to your friends.