Some anatomical and physiological aspects of anal sexual practices

Related Experiment Video

Updated: Sep 16, 2026

Physiological Experimentation with the Crayfish Hindgut: A Student Laboratory Exercise
10:07

Physiological Experimentation with the Crayfish Hindgut: A Student Laboratory Exercise

Published on: January 19, 2011

J Agnew

    Journal of Homosexuality
    |January 1, 1985
    PubMed

    More Related Videos

    Anogenital Distance and Perineal Measurements of the Pelvic Organ Prolapse (POP) Quantification System03:49

    Anogenital Distance and Perineal Measurements of the Pelvic Organ Prolapse (POP) Quantification System

    Published on: September 20, 2018

    Quantification of Levator Ani Hiatus Enlargement by Magnetic Resonance Imaging in Males and Females with Pelvic Organ Prolapse07:41

    Quantification of Levator Ani Hiatus Enlargement by Magnetic Resonance Imaging in Males and Females with Pelvic Organ Prolapse

    Published on: April 17, 2019

    Related Concept Videos

    Assessing Body Temperature - Rectal01:27

    Assessing Body Temperature - Rectal

    Rectal temperature measurement is considered the most precise method for assessing core body temperature and typically registers higher than oral temperature. For adults, the rectal thermometer should be inserted 1 to 1.5 inches into the rectum to obtain the most accurate reading.
    Follow these steps for rectal temperature assessment:
    Step 1: Perform hand hygiene and don clean gloves to prevent cross-infection.
    Step 2: Position the patient in a side-lying position to better visualize the rectal...
    Anatomical Positions01:11

    Anatomical Positions

    In anatomy, several standard anatomical positions are used as references for describing the position and orientation of different body parts. These positions help provide a common frame of reference when discussing anatomical structures. The anatomical position is the standard reference point for describing the body's position and orientation. In this position:
    The body is upright, facing forward, and standing erect.
    The feet are parallel and flat on the floor.
    The arms are hanging by the...
    Muscles of the Pelvic Floor and Perineum01:26

    Muscles of the Pelvic Floor and Perineum

    The muscles of the pelvic floor and perineum are crucial for supporting the pelvic organs, controlling continence, and aiding in sexual function, childbirth, and core stability. They are typically divided into the superficial perineal layer and the deep pelvic floor layer.
    Perineal Layer
    The perineum is a diamond-shaped area below the pelvic diaphragm, divided into an anterior urogenital triangle that contains the external genitals and a posterior anal triangle housing the anus. The urogenital...
    Assessment of the Rectum and Anus01:25

    Assessment of the Rectum and Anus

    Evaluating the rectum and anus plays a crucial role in conducting a thorough physical examination of the gastrointestinal system. Although it may be uncomfortable and often embarrassing for the patient, it holds immense diagnostic value, particularly in detecting gastrointestinal diseases and abnormalities. This guide will explain how to perform this assessment using inspection and palpation methods.
    Rectal Inspection
    Begin by inspecting the perianal and anal areas for color, texture, rashes,...
    Anatomy of the Genitourinary System II: Bladder and Urethra01:19

    Anatomy of the Genitourinary System II: Bladder and Urethra

    The lower urinary system consists of the urinary bladder and urethra, which are essential in storing and expelling urine from the body. Together with the internal and external sphincters, these structures work together to regulate urination effectively.Anatomy of the BladderThe urinary bladder is a muscular, stretchable organ behind the pubic bone and in front of the rectum. In females, the bladder is positioned anterior to the vagina and inferior to the uterus, while in males, it is located...
    Amebiasis01:28

    Amebiasis

    Entamoeba histolytica, a protozoan parasite, is responsible for intestinal and extraintestinal amebiasis. Though a significant proportion of infections remain asymptomatic, approximately 50 million individuals annually are estimated to present with clinical disease, resulting in up to 100,000 deaths globally. The disease burden is disproportionately high in regions with lower socioeconomic status, such as parts of India, Africa, Mexico, and Latin America.Etiology and TransmissionThe infective...