ItsElectric

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"Some Anatomy"
#1
I. Shaft of Penis
A. Corpus Cavernosum (two)
1. Two large columns of erectile tissue on penile dorsum
2. Columns separated by septum of fibers
B. Tunica albuginea
1. Bands together the two columns of corpus cavernosa
C. Lacunar space (Space of Smith)
1. Surrounds tunica albuginea
2. Intralacunar smooth muscle found within space
D. Corpus spongiosum
1. Located on ventral side (underside) of penis
2. Does not contribute to penile rigidity
3. Contains urethra
II. Glans (Head) of Penis Innervation
A. Sensation
1. Pudendal nerve supplies dorsal nerves to penis
B. Erectile function
1. Parasympathetic input (excitatory)
a. Nervi erigentes runs adjacent to prostate gland
b. Parasympathetic nerves join at hilum of penis
c. Nerves course through corpus cavernosa
2. Sympathetic input (inhibitory)
a. Sympathetic nerves supplied by thoracolumbar plexus
III. Vascular Supply of the Penis
A. Arterial inflow
1. Supplies glans penis and shaft of penis
2. Branches of deep internal pudendeal arteries
a. Common penile artery
b. Bulbar artery
c. Dorsal artery
d. Urethral artery
e. Cavernosal artery
B. Venous drainage
1. Superficial penile veins
a. Superficial dorsal vein
2. Intermediate penile veins
a. Emissary vein
b. Circumflex vein
c. Deep dorsal vein
3. Deep penile veins
a. Hilar vein (Santorini's Plexus)
b. Cavernosal vein
IV. Erection Physiology
A. Step 1: Flaccid Penis
1. Intralacunar (cavernosa) smooth muscle contracted
2. Under Alpha adrenergic control (Norepinephrine)
B. Step 2: Cavernous nerve stimulation (Parasympathetic)
1. Alpha Adrenergic Receptor blockade
a. Acetylcholine
b. Vasoactive intestinal peptide (VIP)
c. Prostaglandin (Prostacyclin system)
d. Nitric oxide (nitrergic system)
i. Released from nerve endings
ii. Activates guanosine triphosphate to produce cGMP
2. cGMP causes smooth muscle relaxation
3. Intralacunar (cavernosa) smooth muscle relaxes
C. Step 3: Arterial Inflow increases
1. Lacunar space dilates
2. Helicine artery dilates
D. Step 4: Venous outflow blocked
1. Subtunical venules compressed
2. Emissary veins (in tunica albuginea) compressed
E. Step 5: Erection as lacunar space pools with blood
1. Blood fills space rapidly with arterial dilation
2. Blood trapped due to venous constriction
F. Step 6: Ejaculation (Sympathetic Stimulation)
1. Controlled by hypogastric plexus sympathetic impulse
G. Step 7: Detumescence (Penis flaccid again)
1. Decreased parasympathetic tone
2. Baseline sympathetic tone maintained


There's a good list of everything, but it didn't come with a picture. The reason I want a picture that lists everything is because I feel that, to enlarge your penis it would be your best bet to know everything about it. This could help in determining if new exercises you make are effective as well as different ways to do things.

-ItsElectric
 

REDZULU2003

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"Some Anatomy"
#5
Exellent,
I have some images ma self,
they are rubbish however compared to these.

I am very interested in the anatomy of the male organ, this makes one more aware of what can be made to happen in NPenis Enlargement.
 
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"Some Anatomy"
#7
Shaft of Penis
Corpus Cavernosum (two)
Two large columns of erectile tissue on penile dorsum
Columns separated by septum of fibers
Tunica albuginea
Bands together the two columns of corpus cavernosa
Lacunar space (Space of Smith)
Surrounds tunica albuginea
Intralacunar smooth muscle found within space
Corpus spongiosum
Located on ventral side (underside) of penis
Does not contribute to penile rigidity
Contains urethra

Glans (Head) of Penis Innervation
Sensation
Pudendal nerve supplies dorsal nerves to penis
Erectile function
Parasympathetic input (excitatory)
Nervi erigentes runs adjacent to prostate gland
Parasympathetic nerves join at hilum of penis
Nerves course through corpus cavernosa
Sympathetic input (inhibitory)
Sympathetic nerves supplied by thoracolumbar plexus

Vascular Supply of the Penis
Arterial inflow
Supplies glans penis and shaft of penis
Branches of deep internal pudendeal arteries
Common penile artery
Bulbar artery
Dorsal artery
Urethral artery
Cavernosal artery
Venous drainage
Superficial penile veins
Superficial dorsal vein
Intermediate penile veins
Emissary vein
Circumflex vein
Deep dorsal vein
Deep penile veins
Hilar vein (Santorini's Plexus)
Cavernosal vein

Erection Physiology
Step 1: Flaccid Penis
Intralacunar (cavernosa) smooth muscle contracted
Under Alpha adrenergic control (Norepinephrine)
Step 2: Cavernous nerve stimulation (Parasympathetic)
Alpha Adrenergic Receptor blockade
Acetylcholine
Vasoactive intestinal peptide (VIP)
Prostaglandin (Prostacyclin system)
Nitric oxide (nitrergic system)
Released from nerve endings
Activates guanosine triphosphate to produce cGMP
cGMP causes smooth muscle relaxation
Intralacunar (cavernosa) smooth muscle relaxes
Step 3: Arterial Inflow increases
Lacunar space dilates
Helicine artery dilates
Step 4: Venous outflow blocked
Subtunical venules compressed
Emissary veins (in tunica albuginea) compressed
Step 5: Erection as lacunar space pools with blood
Blood fills space rapidly with arterial dilation
Blood trapped due to venous constriction
Step 6: Ejaculation (Sympathetic Stimulation)
Controlled by hypogastric plexus sympathetic impulse
Step 7: Detumescence (Penis flaccid again)
Decreased parasympathetic tone
Baseline sympathetic tone maintained
 
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"Some Anatomy"
#8
TUNICA
The whitish membrane within the penis that surrounds the spongy chambers (corpora cavernosa) in the penis and which helps to trap the blood in the corpora cavernosa, thereby sustaining erection of the penis.

The term comes straight from the Latin tunica ["tunic"] (covering or coat) + albuginea (white) = a covering/coat that is white, like the white (albumen) of an egg.
 
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"Some Anatomy"
#9
This is a great post,i was wondering if u or another vet could provide the same list in this post with some exercises to go along with every specific part of the penis
 
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"Some Anatomy"
#10
Originally posted by nystrongstroke
This is a great post,i was wondering if u or another vet could provide the same list in this post with some exercises to go along with every specific part of the penis
For stretching ligaments: Use mostly downward stretches , A-Stretches , DLD Blasters, BTC hanging , etc.
For stretching tunica: Use mostly upward stretches (to take the ligs out of the picture), do Bundled Stretches , DLD's Horseshoes, etc.
For soft internal structures (like CC): Impaction movements - like jelqing, holds, horses, etc.
By stretching the ligs which connect your tool to your pubis bone, you could gain an extra 0.5-1" length or more. But by stretching the tunica (which is the actual limiting factor for shaft elongation), you can add much more length . Think of the corpus cavernosa & corpus spongiosum as marine-life sponges (they are actually very similar in structure). It's not difficult to stretch these structures, what makes it difficult is the tough tunica which surrounds them. But the tunica needs to be tough so that we can achieve rigidity & shape during erection.
A good plan of attack is to go after length first; and to target your ligaments early. Then go after the tunica. As you near your length goals, start to focus on girth. Getting extremem girth early can inhibit length gains (not from the ligs but from the soft tissues of the shaft) - it's simple mechanics: the thicker your tool, the tougher it will be to stretch .
Good luck.
 
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"Some Anatomy"
#11
Terrific post...Bumping it back to the top, fo' sho'!
 

ItsElectric

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"Some Anatomy"
#12
Bump, for WaxN's thread.

-ItsElectric
 

ItsElectric

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"Some Anatomy"
#13
Maybe someone can combine the posts WaxN made and the post I made a while ago (i just bumped it), great information!

-ItsElectric
 
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"Some Anatomy"
#14
Dam this has got to be one of the tightest post on here,someone needs to highlight this one and put it on the top so that everyone that comes in here sees this post
 
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"Some Anatomy"
#15
What I'm not clear on is the ligament structure.

Correct me if I'm wrong -

Most of the ligs (how many are there) are attached to the base of the tunica?

Some ligs (how many) go all the way to the head?

Thanks
 

Gardenier90

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"Some Anatomy"
#16
Bump.
 

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