Hilton's white line
Encyclopedia
Hilton's white line is a boundary in the anal canal
.
Below it, lymphatic drainage is to the superficial inguinal nodes.
A landmark for the intermuscular border between internal and external anal sphincter muscles. Which explains the synonym, intersphincteric groove.
This line represents the transition point from non-keratinized stratified squamous epithelium
to keratinized stratified squamous epithelium
in the anus.
In live persons the color of the line is white, hence the name.
It is named for John Hilton.
Anal canal
The anal canal is the terminal part of the large intestine.It is situated between the rectum and anus, below the level of the pelvic diaphragm. It lies in the anal triangle of perineum in between the right and left ischioanal fossa....
.
Below it, lymphatic drainage is to the superficial inguinal nodes.
A landmark for the intermuscular border between internal and external anal sphincter muscles. Which explains the synonym, intersphincteric groove.
This line represents the transition point from non-keratinized stratified squamous epithelium
Stratified squamous epithelium
A stratified squamous epithelium consists of squamous epithelial cells arranged in layers upon a basement membrane. Only one layer is in contact with the basement membrane; the other layers adhere to one another to maintain structural integrity...
to keratinized stratified squamous epithelium
Stratified squamous epithelium
A stratified squamous epithelium consists of squamous epithelial cells arranged in layers upon a basement membrane. Only one layer is in contact with the basement membrane; the other layers adhere to one another to maintain structural integrity...
in the anus.
In live persons the color of the line is white, hence the name.
It is named for John Hilton.