An erection (clinically: penile erection or penile tumescence) is a physiological phenomenon in which the penis becomes firm, engorged, and enlarged. Penile erection is the result of a complex interaction of psychological, neural, vascular, and endocrine factors, and is often associated with sexual arousal , sexual attraction or libido ...

May 17, 2024 · What Is an Erection? An erection occurs when your penis fills with blood, causing it to expand and become firm. You might have an erection if you feel sexually aroused, though sometimes they...

An erection is the stiffening expansion and orthogonal reorientation of the penis, which occurs during sexual arousal. Erections can occur in non- sexual situations; spontaneous non-sexual erections frequently occur during adolescence and sleep.

An erection is reversed when muscles in your penis contract, stopping the flow of blood. The pressure decreases and the valves open, letting the blood flow out. Your penis loses its erection and becomes flaccid (soft).

The term erection is most often used to refer to an erection of the penis. A man's penis is usually soft, quite short and hangs down. When the penis is like this, it is said to be flaccid (pronounced FLA-sid).

Jun 5, 2024 · What Is an Erection? An erection is the normal physiological process, in which the penis gets firm, solid, enlarged, and erect. This typically occurs during sexual stimulation due to high blood flow in the tissues of the penis.

Erection, enlargement, hardening, and elevation of the male reproductive organ, the penis. Internally, the penis has three long masses of cylindrical tissue, known as erectile tissue, that are bound together by fibrous tissue.

May 1, 2023 · The physiology of an erection can break down into arterial dilation and venous occlusion. In most cases, tumescence occurs following sexual stimulation. This process triggers sympathetic inhibition, parasympathetic activation, and release of pro-erectogenic neurotransmitters from cavernous nerves.

In this chapter the components of erectile function will be explained. The penile erectile tissue, specifically the cavernous smooth musculature and the smooth muscles of the arteriolar and arterial walls, plays a key role in the erectile process.

How does an erection occur? An erection occurs when blood flow into the penis increases, making the penis larger and firmer. Hormones, blood vessels, nerves, and muscles all work together to cause an erection. When your brain senses a sexual urge, it starts an erection by sending nerve signals to the penis. by sending nerve signals to the penis.