Penis: The external reproductive organ of males. It is composed of a mass of erectile tissue enclosed in three cylindrical fibrous compartments. Two of the three compartments, the corpus cavernosa, are placed side-by-side along the upper part of the organ. The third compartment below, the corpus spongiosum, houses the urethra.Penile Neoplasms: Cancers or tumors of the PENIS or of its component tissues.Penile Erection: The state of the PENIS when the erectile tissue becomes filled or swollen (tumid) with BLOOD and causes the penis to become rigid and elevated. It is a complex process involving CENTRAL NERVOUS SYSTEM; PERIPHERAL NERVOUS SYSTEMS; HORMONES; SMOOTH MUSCLES; and vascular functions.Erectile Dysfunction: The inability in the male to have a PENILE ERECTION due to psychological or organ dysfunction.Photic Stimulation: Investigative technique commonly used during ELECTROENCEPHALOGRAPHY in which a series of bright light flashes or visual patterns are used to elicit brain activity.Clitoris: An erectile structure homologous with the penis, situated beneath the anterior labial commissure, partially hidden between the anterior ends of the labia minora.Penile Induration: A condition characterized by hardening of the PENIS due to the formation of fibrous plaques on the dorsolateral aspect of the PENIS, usually involving the membrane (tunica albuginea) surrounding the erectile tissue (corpus cavernosum penis). This may eventually cause a painful deformity of the shaft or constriction of the urethra, or both.Balanitis: Inflammation of the head of the PENIS, glans penis.Priapism: A prolonged painful erection that may lasts hours and is not associated with sexual activity. It is seen in patients with SICKLE CELL ANEMIA, advanced malignancy, spinal trauma; and certain drug treatments.Scrotum: A cutaneous pouch of skin containing the testicles and spermatic cords.Penile Prosthesis: Rigid, semi-rigid, or inflatable cylindric hydraulic devices, with either combined or separate reservoir and pumping systems, implanted for the surgical treatment of organic ERECTILE DYSFUNCTION.Generalization, Stimulus: The tendency to react to stimuli that are different from, but somewhat similar to, the stimulus used as a conditioned stimulus.Reaction Time: The time from the onset of a stimulus until a response is observed.Acoustic Stimulation: Use of sound to elicit a response in the nervous system.Urologic Surgical Procedures, Male: Surgery performed on the male genitalia.Genitalia, Male: The male reproductive organs. They are divided into the external organs (PENIS; SCROTUM;and URETHRA) and the internal organs (TESTIS; EPIDIDYMIS; VAS DEFERENS; SEMINAL VESICLES; EJACULATORY DUCTS; PROSTATE; and BULBOURETHRAL GLANDS).Circumcision, Male: Excision of the prepuce of the penis (FORESKIN) or part of it.Tuberculosis, Male Genital: MYCOBACTERIUM infections of the male reproductive tract (GENITALIA, MALE).Visual Perception: The selecting and organizing of visual stimuli based on the individual's past experience.Discrimination Learning: Learning that is manifested in the ability to respond differentially to various stimuli.Physical Stimulation: Act of eliciting a response from a person or organism through physical contact.Copulation: Sexual union of a male and a female in non-human species.Electric Stimulation: Use of electric potential or currents to elicit biological responses.Discrimination (Psychology): Differential response to different stimuli.Hypospadias: A birth defect due to malformation of the URETHRA in which the urethral opening is below its normal location. In the male, the malformed urethra generally opens on the ventral surface of the PENIS or on the PERINEUM. In the female, the malformed urethral opening is in the VAGINA.Pattern Recognition, Visual: Mental process to visually perceive a critical number of facts (the pattern), such as characters, shapes, displays, or designs.Psychophysics: The science dealing with the correlation of the physical characteristics of a stimulus, e.g., frequency or intensity, with the response to the stimulus, in order to assess the psychologic factors involved in the relationship.Attention: Focusing on certain aspects of current experience to the exclusion of others. It is the act of heeding or taking notice or concentrating.Penile Implantation: Surgical insertion of cylindric hydraulic devices for the treatment of organic ERECTILE DYSFUNCTION.Sensory Thresholds: The minimum amount of stimulus energy necessary to elicit a sensory response.Time Factors: Elements of limited time intervals, contributing to particular results or situations.Genital Diseases, Male: Pathological processes involving the male reproductive tract (GENITALIA, MALE).Motion Perception: The real or apparent movement of objects through the visual field.Cues: Signals for an action; that specific portion of a perceptual field or pattern of stimuli to which a subject has learned to respond.Auditory Perception: The process whereby auditory stimuli are selected, organized, and interpreted by the organism.Genitalia: The external and internal organs related to reproduction.Visual Cortex: Area of the OCCIPITAL LOBE concerned with the processing of visual information relayed via VISUAL PATHWAYS.Love: Affection; in psychiatry commonly refers to pleasure, particularly as it applies to gratifying experiences between individuals.Anus, Imperforate: A congenital abnormality characterized by the persistence of the anal membrane, resulting in a thin membrane covering the normal ANAL CANAL. Imperforation is not always complete and is treated by surgery in infancy. This defect is often associated with NEURAL TUBE DEFECTS; MENTAL RETARDATION; and DOWN SYNDROME.Group Purchasing: A shared service which combines the purchasing power of individual organizations or facilities in order to obtain lower prices for equipment and supplies. (From Health Care Terms, 2nd ed)Anus Neoplasms: Tumors or cancer of the ANAL CANAL.Play and Playthings: Spontaneous or voluntary recreational activities pursued for enjoyment and accessories or equipment used in the activities; includes games, toys, etc.Commerce: The interchange of goods or commodities, especially on a large scale, between different countries or between populations within the same country. It includes trade (the buying, selling, or exchanging of commodities, whether wholesale or retail) and business (the purchase and sale of goods to make a profit). (From Random House Unabridged Dictionary, 2d ed, p411, p2005 & p283)War Crimes: Criminal acts committed during, or in connection with, war, e.g., maltreatment of prisoners, willful killing of civilians, etc.Documentaries and Factual FilmsAnthropology, Medical: Field of social science that is concerned with differences between human groups as related to health status and beliefs.Motion Pictures as Topic: The art, technique, or business of producing motion pictures for entertainment, propaganda, or instruction.Documentation: Systematic organization, storage, retrieval, and dissemination of specialized information, especially of a scientific or technical nature (From ALA Glossary of Library and Information Science, 1983). It often involves authenticating or validating information.History, 20th Century: Time period from 1901 through 2000 of the common era.Hearing Loss, Sudden: Sensorineural hearing loss which develops suddenly over a period of hours or a few days. It varies in severity from mild to total deafness. Sudden deafness can be due to head trauma, vascular diseases, infections, or can appear without obvious cause or warning.Product Labeling: Use of written, printed, or graphic materials upon or accompanying a product or its container or wrapper. It includes purpose, effect, description, directions, hazards, warnings, and other relevant information.Cochlear Aqueduct: A fine channel that passes through the TEMPORAL BONE near the SCALA TYMPANI (the basilar turn of the cochlea). The cochlear aqueduct connects the PERILYMPH-filled bony labyrinth to the SUBARACHNOID SPACE.Hearing Loss, Sensorineural: Hearing loss resulting from damage to the COCHLEA and the sensorineural elements which lie internally beyond the oval and round windows. These elements include the AUDITORY NERVE and its connections in the BRAINSTEM.Hearing Loss: A general term for the complete or partial loss of the ability to hear from one or both ears.Audiometry, Pure-Tone: Measurement of hearing based on the use of pure tones of various frequencies and intensities as auditory stimuli.
  • The physical examination should include a genital examination, a measurement of blood flow through the penis, hormone tests, and a glucose test for diabetes. (encyclopedia.com)
  • This does not necessarily guarantee the ability to achieve genital orgasm after healing, as the most important task of nerve reconnection is to ensure the penis is able to sense injury, but it is rare to lose the ability to orgasm. (wikipedia.org)
  • Reflex erections secondary to tactile stimulus to the penis or genital area activate a reflex arc with sacral roots at S2 to S4. (diabetesjournals.org)
  • But some people can reach orgasm sometimes without any genital stimulus at all! (scarleteen.com)
  • Damage to the nerves of the penis, from certain types of surgery or neurological conditions, such as Parkinson's disease or multiple sclerosis, may also cause impotence. (encyclopedia.com)
  • Other conditions that damage the nerves of the penis, as well as some mental disorders and some drugs that are used to treat mental disorders, may also affect the ability to ejaculate. (merckmanuals.com)
  • In this area, after triggering with the stimuli in the prostatic urethra, the ejaculation reflex is triggered. (impodoc.de)
  • It was facilitated by bladder or urethra exposure to cold and menthol, stimuli that activate specific cold-sensitive receptors associated with unmyelinated C afferents. (diva-portal.org)
  • Psychogenic erections are initiated centrally in response to auditory, visual, olfactory or imaginary stimuli. (aafp.org)
  • The man applies a device to the penis called a Rigiscan before going to bed at night, and the device can determine whether he has had erections. (encyclopedia.com)
  • Those erections are not there just to make life interesting for your bedmate (although be assured she's aware of them), they work to recharge your penis keeping it well-nourished with oxygenated blood. (menshealth.co.uk)
  • This means that psychogenic erections are caused by a perceived stimuli, images or thoughts. (performanceinsiders.com)
  • 3 Somatic sensory and motor fibers enter and leave the sacral cord and innervate the penis and the perineum via the pudendal nerve. (aafp.org)
  • Men with PE sometimes say their penis is hypersensitive and there is an assumption that they might have a lower sensory threshold that causes them to ejaculate more quickly. (issm.info)
  • Vascular disease: Blood supply to the penis can become blocked or narrowed as a result of vascular disease such as atherosclerosis (hardening of the arteries). (clevelandclinic.org)
  • In men over the age of 60, the leading cause is atherosclerosis, or narrowing of the arteries, which can restrict the flow of blood to the penis. (encyclopedia.com)
  • The most noticeable change in the penis during orgasm is the ejaculation of semen , although orgasm and ejaculation are two separate functions and may not occur at the exact same time. (healthyplace.com)
  • But the angle of the penis does not allow for deep penetration or stimulation of the G-spot (a location on the front wall of the vagina that's believed by some experts to be a stimulus for orgasm in women). (everydayhealth.com)
  • Orgasm for women is more likely to happen either through clitoral stimulus -- which intercourse doesn't often provide much of all by itself -- or, for those who have intercourse with orgasm, by combining activities which do provide clitoral stimulation during intercourse, such as by adding manual (with fingers) clitoral stimulation to oral sex . (scarleteen.com)
  • The majority of cases have an organic etiology, most commonly vascular disease that decreases blood flow into the penis. (aafp.org)
  • Now that the stimulus has wound down, the question hangs: Did it stimulate? (slate.com)
  • Sufficient stimulus, either copulatory or non-copulatory, is required to stimulate increased release of gonadotropin releasing hormone (GnRH) from the medioventral hypothalamus. (vin.com)
  • The two main chambers of the penis, the corpus cavernosum, fill and the organ becomes so engorged that the veins that usually drain away blood are pressed shut against the tough outer membrane of the erectile chambers. (saintbotanica.com)
  • Just one vigorously misplaced thrust is all it takes to rupture the corposa cavernosa , the elongated "erectile chambers" that run the length of your penis. (menshealth.co.uk)
  • Moving through the reproductive exam, Parsons examines the prepuce, sheath and penis, which may restrict breeding ability. (wylr.net)