KillerSkull 2011-04-12 21:18:31

Penile erection is a physiological phenomenon where the penis becomes enlarged and firm. Penile erection is the result of a complex interaction of psychological, neural, vascular and endocrine factors, and is usually, though not exclusively, associated with sexual arousal. Penile erection can also occur due to a full urinary bladder. In some males, erection can occur spontaneously at any time of day, and is known as nocturnal penile tumescence when occurring during REM sleep.

Physiology
Penile erection occurs when two tubular structures that run the length of the penis, the corpora cavernosa, become engorged with venous blood. This may result from any of various physiological stimuli, also known as sexual stimulation and sexual arousal. The corpus spongiosum is a single tubular structure located just below the corpora cavernosa, which contains the urethra, through which urine and semen pass during urination and ejaculation, respectively. This may also become slightly engorged with blood, but less so than the corpora cavernosa.

During sexual activity

The swelling, hardening and enlargement of the penis enables sexual intercourse. The scrotum may also become tightened during an erection. Erection is not required for all sexual activities.

After a male has ejaculated during a sexual encounter or masturbation, the erection usually ends, but this may take time depending on the length and thickness of the penis.

Autonomic control
In the presence of mechanical stimulation, erection is initiated by the parasympathetic division of the autonomic nervous system (ANS) with minimal input from the central nervous system. Parasympathetic branches extend from the sacral plexus into the arteries supplying the erectile tissue; upon stimulation, these nerve branches initiate the release of nitric oxide, a vasodilating agent, in the target arteries. The arteries dilate, filling the corpora spongiosum and cavernosa with blood. Erection subsides when parasympathetic stimulation is discontinued; baseline stimulation from the sympathetic division of the ANS causes constriction of the penile arteries, forcing blood out of the erectile tissue. The cerebral cortex can initiate erection in the absence of direct mechanical stimulation (in response to visual, auditory, olfactory, imagined, or tactile stimuli) acting through erectile centers in the lumbar and sacral regio

KillerSkull 2011-04-12 21:19:12

I hope my above post helped answer your question.

Krutches 2011-04-26 20:10:37

I hope my below post will help answer your question.

Krutches 2011-04-26 20:10:50

Penile erection is a physiological phenomenon where the penis becomes enlarged and firm. Penile erection is the result of a complex interaction of psychological, neural, vascular and endocrine factors, and is usually, though not exclusively, associated with sexual arousal. Penile erection can also occur due to a full urinary bladder. In some males, erection can occur spontaneously at any time of day, and is known as nocturnal penile tumescence when occurring during REM sleep.
Physiology
Penile erection occurs when two tubular structures that run the length of the penis, the corpora cavernosa, become engorged with venous blood. This may result from any of various physiological stimuli, also known as sexual stimulation and sexual arousal. The corpus spongiosum is a single tubular structure located just below the corpora cavernosa, which contains the urethra, through which urine and semen pass during urination and ejaculation, respectively. This may also become slightly engorged with blood, but less so than the corpora cavernosa.
During sexual activity
The swelling, hardening and enlargement of the penis enables sexual intercourse. The scrotum may also become tightened during an erection. Erection is not required for all sexual activities.
After a male has ejaculated during a sexual encounter or masturbation, the erection usually ends, but this may take time depending on the length and thickness of the penis.
Autonomic control
In the presence of mechanical stimulation, erection is initiated by the parasympathetic division of the autonomic nervous system (ANS) with minimal input from the central nervous system. Parasympathetic branches extend from the sacral plexus into the arteries supplying the erectile tissue; upon stimulation, these nerve branches initiate the release of nitric oxide, a vasodilating agent, in the target arteries. The arteries dilate, filling the corpora spongiosum and cavernosa with blood. Erection subsides when parasympathetic stimulation is discontinued; baseline stimulation from the sympathetic division of the ANS causes constriction of the penile arteries, forcing blood out of the erectile tissue. The cerebral cortex can initiate erection in the absence of direct mechanical stimulation (in response to visual, auditory, olfactory, imagined, or tactile stimuli) acting through erectile centers in the lumbar and sacral regio

ModernPatriot 2011-05-29 01:40:30

....Sure... Whadaya need? LOL!

Quinny 2011-05-31 17:16:10

I'am a member of English Gents, what of it?

Jom 2011-06-01 18:12:59

<a href="http://www.newgrounds.com/bbs/topic/1250955">http://www.newgrounds.com/bbs/topic/1 250955</a>

BurningJesus 2011-06-05 01:53:08

You are the first person to actually get it. I am not as emo as I say I am on the forums. I dont have badass hair, its just plain, shaggy and light brown. I dont always dress emo, during the summer I dress as a hipster. But as for music I do listen to "hardcore emo music". I also do wear makeup sometimes.

That picture is not me at all because I dont have to balls to take a real picture or my wrists and show it because I actually try to hide it and if it leaked to facebook I would be fucked.

Yes I realize I am making the stereotypes worse but I just dont give a flying fuck because in reality most emos dont give a damn about the stereotypes.

I am sorry but I am going to have to delete your post because I want to have fun on the forum.

Sorry if my posts are offensive to you or your friends in anyways.