Erection - Revision history

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2025-02-23T21:32:41Z

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← Older revision		Revision as of 21:32, 23 February 2025
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	[[Category:Sexual health]]		[[Category:Sexual health]]
	[[Category:Human physiology]]		[[Category:Human physiology]]
			<gallery>
			File:A_Erect_human_penis.JPG\|A Erect human penis
			File:Figure_28_01_06.jpg\|Figure 28 01 06
			File:Erection_Development_V2.jpg\|Erection Development V2
			File:Circumcised_human_penis_erection_stages.jpg\|Circumcised human penis erection stages
			File:Different_penis_sizes.jpg\|Different penis sizes
			File:Lateral_view_of_an_un-circumcised_human_penis_during_various_stages_of_erection.png\|Lateral view of an un-circumcised human penis during various stages of erection
			File:A_male_wearing_fishnet_underpants_(cropped).jpg\|A male wearing fishnet underpants (cropped)
			File:Visible_erection_through_clothing.jpg\|Visible erection through clothing
			File:Međimurski_konj_(vranac)_na_sajmu_MESAP_2015.jpg\|Međimurski konj (vranac) na sajmu MESAP 2015
			</gallery>

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2025-02-18T17:31:35Z

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-'''Erection''' is a physiological phenomenon in which the [[penis]] becomes firm, engorged, and enlarged. Erections result from a complex series of events, involving signals from the [[nervous system]] and the release of chemical messengers within the tissues of the penis.
+{{Short description|A physiological phenomenon in which the penis becomes firm, engorged, and enlarged}}
-==Physiology==
+==Overview==
-The process of erection begins with sensory or mental stimulation, or both. Impulses from the brain and local nerves cause the muscles of the [[corpora cavernosa]] to relax, allowing blood to flow in and fill the open spaces. The blood creates pressure in the corpora cavernosa, making the penis expand. The tunica albuginea helps trap the blood in the corpora cavernosa, thereby sustaining the erection.
+An '''erection''' is a complex physiological process that results in the penis becoming firm, engorged, and enlarged. This process is primarily driven by the [[nervous system]] and involves the coordination of [[vascular]], [[neurological]], and [[hormonal]] factors. Erection is a key component of [[male sexual function]] and is essential for [[sexual intercourse]].
-==Erection and Age==
+==Physiology of Erection==
-Erection changes can mark the end of sex or a new erotic beginning. When men reach their 50s and 60s, the force and hardness of an erection can be weaker and not as firm as it was at a younger age. However, sexual activity can still be enjoyed with the help of medications and other treatments.
+The process of erection involves several stages:
-==Erectile Dysfunction==
+===Neural Activation===
-[[Erectile dysfunction]] (ED) is the inability to get or keep an erection firm enough for sexual intercourse. ED can be a sign of health problems that need treatment. It can also be a sign of emotional or relationship difficulties that may need to be addressed by a professional.
+Erection begins with [[sexual arousal]], which can be triggered by [[erotic stimuli]] such as visual, tactile, or psychological factors. These stimuli activate the [[parasympathetic nervous system]], leading to the release of [[nitric oxide]] (NO) in the [[corpus cavernosum]] of the penis.
-==Treatment==
+===Vascular Changes===
-There are many treatments for erectile dysfunction, including medications such as [[sildenafil]] (Viagra), [[tadalafil]] (Cialis), and [[vardenafil]] (Levitra). Other treatments include lifestyle changes, such as quitting smoking, losing weight, and increasing physical activity. In some cases, surgery may be an option.
+Nitric oxide acts as a [[vasodilator]], causing the [[smooth muscle]]s of the penile arteries to relax. This relaxation allows increased blood flow into the [[corpora cavernosa]], the two cylindrical structures that run along the length of the penis. As these chambers fill with blood, the penis expands and becomes rigid.
-==See Also==
+===Venous Occlusion===
 * [[Erectile dysfunction]]
-* [[Penis]]
+* [[Sexual arousal]]
-* [[Corpora cavernosa]]
+* [[Testosterone]]
-* [[Sildenafil]]
+* [[Nitric oxide]]
 [[Category:Sexual health]]
+[[Category:Human physiology]]

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	{{stub}}		{{stub}}
			<gallery>
			File:A_Erect_human_penis.JPG\|Erection
			File:Me_imurski_konj_(vranac)_na_sajmu_MESAP_2015.jpg\|Erection
			</gallery>

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2024-02-23T01:36:18Z

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New page

'''Erection''' is a physiological phenomenon in which the [[penis]] becomes firm, engorged, and enlarged. Erections result from a complex series of events, involving signals from the [[nervous system]] and the release of chemical messengers within the tissues of the penis.

==Physiology==
The process of erection begins with sensory or mental stimulation, or both. Impulses from the brain and local nerves cause the muscles of the [[corpora cavernosa]] to relax, allowing blood to flow in and fill the open spaces. The blood creates pressure in the corpora cavernosa, making the penis expand. The tunica albuginea helps trap the blood in the corpora cavernosa, thereby sustaining the erection.

==Erection and Age==
Erection changes can mark the end of sex or a new erotic beginning. When men reach their 50s and 60s, the force and hardness of an erection can be weaker and not as firm as it was at a younger age. However, sexual activity can still be enjoyed with the help of medications and other treatments.

==Erectile Dysfunction==
[[Erectile dysfunction]] (ED) is the inability to get or keep an erection firm enough for sexual intercourse. ED can be a sign of health problems that need treatment. It can also be a sign of emotional or relationship difficulties that may need to be addressed by a professional.

==Treatment==
There are many treatments for erectile dysfunction, including medications such as [[sildenafil]] (Viagra), [[tadalafil]] (Cialis), and [[vardenafil]] (Levitra). Other treatments include lifestyle changes, such as quitting smoking, losing weight, and increasing physical activity. In some cases, surgery may be an option.

==See Also==
* [[Erectile dysfunction]]
* [[Penis]]
* [[Corpora cavernosa]]
* [[Sildenafil]]
* [[Tadalafil]]
* [[Vardenafil]]

[[Category:Physiology]]
[[Category:Men's health]]
[[Category:Sexual health]]

{{stub}}