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Nipple Erection

The erection of nipples is not due to erectile tissue, but due to the contraction of smooth muscle under the control of the autonomic nervous system. It is more akin to a hair follicle standing on end than to a sexual erection. Nipple erections are a product of the pilomotor reflex which causes goose bumps. The erection of the nipple is partially due to the cylindrically-arranged muscle cells found within it.

Nipple erection can also be caused by a tactile response to cold temperature in both males and females. Nipple erection may also result during sexual arousal in females and males, or during breastfeeding. Both are caused by the release of oxytocin.

Nipples of both males and females are one of the erogenous zones, which are generally stimulated by hands or by mouth during foreplay, which leads to sexual arousal. Female nipples are more sensitive, due to more nerve supply and endings. During arousal they generally become stiff, erect and protrude out.

The nipple and areola of males and females can be erotic receptors, sometimes intense enough to elicit orgasm in some individuals of either sex.

Erectile Dysfunction and ED

Erectile dysfunction is sexual dysfunction characterized by the inability to develop or maintain an erection of the penis during sexual performance. A penile erection is the hydraulic effect of blood entering and being retained in sponge-like bodies within the penis. The process is often initiated as a result of sexual arousal, when signals are transmitted from the brain to nerves in the penis. Erectile dysfunction is indicated when an erection is difficult to produce. There are various circulatory causes, including alteration of the voltage-gated potassium channel, as in arsenic poisoning from drinking water. The most important organic causes are cardiovascular disease and diabetes, neurological problems (for example, trauma from prostatectomy surgery), hormonal insufficiencies (hypogonadism) and drug side effects.

Psychological impotence is where erection or penetration fails due to thoughts or feelings (psychological reasons) rather than physical impossibility; this is somewhat less frequent but often can be helped. Notably in psychological impotence, there is a strong response to placebo treatment. Erectile dysfunction, tied closely as it is about ideas of physical well being, can have severe psychological consequences. Besides treating the underlying causes such as potassium deficiency or arsenic contamination of drinking water, the first line treatment of erectile dysfunction consists of a trial of PDE5 inhibitor drugs (the first of which was sildenafil or Viagra). In some cases, treatment can involve prostaglandin tablets in the urethra, injections into the penis, a penile prosthesis, a penis pump or vascular reconstructive surgery. The Latin term impotentia coeundi describes simple inability to insert the penis into the vagina. It is now mostly replaced by more precise terms. The study of erectile dysfunction within medicine is covered by andrology, a sub-field within urology.

Erectile Dysfunction Pathophysiology

Penile erection is managed by two different mechanisms. The first one is the reflex erection, which is achieved by directly touching the penile shaft. The second is the psychogenic erection, which is achieved by erotic or emotional stimuli. The former uses the peripheral nerves and the lower parts of the spinal cord, whereas the latter uses the limbic system of the brain. In both conditions, an intact neural system is required for a successful and complete erection. Stimulation of penile shaft by the nervous system leads to the secretion of nitric oxide (NO), which causes the relaxation of smooth muscles of corpora cavernosa (the main erectile tissue of penis), and subsequently penile erection. Additionally, adequate levels of testosterone (produced by the testes) and an intact pituitary gland are required for the development of a healthy erectile system. As can be understood from the mechanisms of a normal erection, impotence may develop due to hormonal deficiency, disorders of the neural system, lack of adequate penile blood supply or psychological problems. Restriction of blood flow can arise from impaired endothelial function due to the usual causes associated with coronary artery disease, but can also be caused by prolonged exposure to bright light.

Auditions casting call

Casting means selecting the actors, dancers, singers, or other talent for a live or recorded performance. It typically involves auditions before a panel that may include the production's producer, director, and/or choreographer. To get the latest information on audition casting calls, go to auditions casting. In entertainment, audition casting calls are a part of the pre-production process for selecting a cast of actors and other talent for a live or recorded performance.

Audition shoes can be a very important part of a performer's audition. Many times casting directors and casting agents will put out an open-call for a certain type of performer i.e., construction worker or doctor. A specific type of shoe is generally worn by these people while at work. Therefore, it would not be a bad idea for an actor to wear similar shoes to more closely fit the role. Go to audition shoes for some ideas about what type of shoes would be appropriate for different types of auditions.

Erectile Dysfunction is ED

ED is the inability to get or keep an erection firm enough for sexual intercourse. ED can be a total inability to achieve an erection, an inconsistent ability to do so, or a tendency to sustain only brief erections.

ED is sometimes called impotence, but that word is being used less often so that it will not be confused with other, nonmedical meanings of the term.

The National Institutes of Health estimates that ED affects as many as 30 million men in the United States. Incidence increases with age: About 4 percent of men in their 50s and nearly 17 percent of men in their 60s experience a total inability to achieve an erection. The incidence jumps to 47 percent for men older than 75.> But ED is not an inevitable part of aging. ED is treatable at any age.