It’s an easy card game to learn for a warm-up for your family games night. Alternatively, it’s a fantastic adult party game idea for a bachelor or bachelorette party. a b Drake, Richard L.; Vogl, Wayne; Tibbitts, Adam W.M. Mitchell (2005). Gray's anatomy for students. illustrations by Richard; Richardson, Paul. Philadelphia: Elsevier/Churchill Livingstone. ISBN 978-0-8089-2306-0.

In addition to nerve endings, pleasure from anal intercourse may be aided by the close proximity between the anus and the prostate for males, and vagina, clitoral legs and anal area for females. This is because of indirect stimulation of the prostate and vagina or clitoral legs. [14] [15] [16] For a male insertive partner, the tightness of the anus can be a source of pleasure via the tactile pressure on the penis. [17] [18] Pleasure from the anus can also be achieved through anal masturbation, anal fingering, [5] facesitting, anilingus, and other penetrative and non-penetrative acts. Anal stretching or fisting is pleasurable for some, but it poses a more serious threat of damage due to the deliberate stretching of the anal and rectal tissues; its injuries include anal sphincter lacerations and rectal and sigmoid colon (rectosigmoid) perforation, which might result in death. [19] Lubricant and condoms are widely regarded as a necessity while performing anal sex, as well as a slow and cautious penetration. [20]The anus is surrounded in its length by folds called anal valves, which converge at a line known as the pectinate line. This represents the point of transition between the hindgut and the ectoderm in the embryo. Below this point, the mucosa of the internal anus becomes skin. [6] :397 The pectinate line is also the division between the internal and external anus. In humans, the anus ( pl.: anuses or ani; from Latin ānus, "ring", "circle") [1] [2] is the external opening of the rectum, located inside the intergluteal cleft and separated from the genitals by the perineum. Two sphincters control the exit of feces from the body during an act of defecation, which is the primary function of the anus. These are the internal anal sphincter and the external anal sphincter, which are circular muscles that normally maintain constriction of the orifice and which relaxes as required by normal physiological functioning. The inner sphincter is involuntary and the outer is voluntary. It is located behind the perineum which is located behind the vulva or scrotum. Janina, Valdez Natasha (2011). Vitamin O: Why Orgasms Are Vital to a Woman's Health and Happiness, and How to Have Them Every Time!. Skyhorse Publishing Inc. p.79. ISBN 978-1-61608-311-3 . Retrieved November 6, 2011.

Anorectal Abscess". Johns Hopkins Medicine. Archived from the original on 10 August 2021 . Retrieved 10 August 2021. Moore, Keith L.; Dalley, Arthur F.; Agur, A. M. R. (2013-02-13). Clinically Oriented Anatomy. Lippincott Williams & Wilkins. ISBN 9781451119459. You'll be surprised at the animals you’ll recognize just from taking a look at the lesser spotted part of their anatomy!Martim de Albuquerque (1873). Notes and Queries. Original from the University of Michigan: Oxford University Press. p.119. a b Komisaruk, Barry R.; Whipple, Beverly; Nasserzadeh, Sara; Beyer-Flores, Carlos (2009). The Orgasm Answer Guide. JHU Press. pp.108–109. ISBN 978-0-8018-9396-4 . Retrieved January 20, 2014.