Alert icon
We're changing our privacy policy. This stuff matters.  Learn more  Dismiss

Eyelid anatomy - punctum

Loading...

Sign in or sign up now!
Alert icon
Upgrade to the latest Flash Player for improved playback performance. Upgrade now or more info.
16,309
Loading...
Alert icon
Sign in or sign up now!
Alert icon

Uploaded by on Feb 3, 2009

The punctum (puncta) are tiny holes located in the eyelids near the bridge of the nose. Excess tears drain through the punctum, down the canalicular system into the lacrimal sac, then down into the nose. This explains why you get a runny nose when your eyes are watering.

Category:

Education

Tags:

License:

Standard YouTube License

  • likes, 1 dislikes

Link to this comment:

Share to:
see all

All Comments (4)

Sign In or Sign Up now to post a comment!
  • oh wow this video was very cool

  • Punctum? I barely know him!

    (old joke, but somebody had to do it.)

  • ew :)

    My eye lids are dry and peeling...and I dont know what is going on...

    they start out as being red...then itchy..then the skin dies and peels off...this cycle has repeated itself a few time now and I'm starting to get concerned

Loading...

Alert icon
0 / 00Unsaved Playlist Return to active list
    1. Your queue is empty. Add videos to your queue using this button:
      or sign in to load a different list.
    Loading...Loading...Saving...
    • Clear all videos from this list
    • Learn more