Frenulum

A frenulum  or frenum  is a small fold of tissue that prevents an organ in the body from moving too far.

 Insect anatomy 
Frenulum as a term in zoology is dealt with under wing coupling.
The word frenulum also refers to a bristle present at the root of the hindwing of most moths which engages with a small hook or tuft on the forewing (the retinaculum) to join the wings together.

 Human anatomy 

There are several frenula in the body, including several in the mouth, some in the digestive tract, and some connected to the external genitalia. 

 Oral tissue 
Frenula of the mouth are found under the tongue and inside the upper and lower lip. These can easily be torn by blows to the face or mouth. A torn frenulum is sometimes a warning sign of physical abuse.

 Vulvar tissue 

In the female, genital frenula can be found in the clitoris and where the labia minora meet at the back.

 Penile tissue 

The word frenulum on its own is often used for the frenulum preputii penis. This is an elastic band of tissue under the glans penis that connects to the prepuce, or foreskin to the vernal mucosa. It helps the prepuce return to cover the glans. It may be removed during circumcision.

It is possible for the frenulum of the penis to tear during sexual activity. This does not cause a great deal of pain  but can cause an alarming amount of blood loss. This is not a medical emergency. The frenulum will heal by itself after the bleeding has stopped.

The name is latin: frēnulum, "little bridle", the diminutive of frēnumfrenulum: definition of frenulum in Oxford dictionary (American English) (US)

Related pages
 Circumcision
 Foreskin
 Wing coupling

References



Category:Penis
Category:Mouth