Does the vagina have a standard shape and size?

 I was arguing this with my friends over lunch today and they asked if a womans Vagina have a standard shape or size , i decided to ask my friend who is a doctor and also do some research , this is what i concluded after the research .

What do you think ?

The vagina is an elastic, muscular canal with a soft, flexible lining that provides lubrication and sensation. The vagina connects the uterus to the outside world.  The vulva and labia form the entrance, and the cervix of the uterus protrudes into the vagina, forming the interior end.

The vagina receives the penis during sexual intercourse and also serves as a conduit for menstrual flow from the uterus. During childbirth, the baby passes through the vagina (birth canal).

The hymen is a thin membrane of tissue that surrounds and narrows the vaginal opening. It may be torn or ruptured by sexual activity or by exercise. Research indicates there’s no standard size or shape for a woman’s vagina; there are many differences in both among women of reproductive age. Such factors as age and height help determine the dimensions of an adult woman’s vagina.  

Kegels are exercises in which you squeeze the muscles around your vagina as if you were trying to stop the flow of urine. Also called pelvic floor exercises, Kegels can help prevent urine leakage as well as accidental passing of stool or gas by keeping the uterus, urethra (the tube that carries urine outside the body from the bladder), and bowel from sagging into the vagina. Strengthening these muscles may improve orgasms.