Male Anatomy

1
Male Anatomy Physiology
2
The Penis

• Composed mainly of spongy tissue
• Becomes erect due to blood accumulation in its
  cylinders
• If relatively small when flaccid, likely to
  greatly expand when erect
• Enhanced at considerable risk
• The glans (head) has many nerve endings

3
More Penis

• Parts include the glans, root, spongy body
• Fractures only when erect and rarely
• Penile cancer is uncommon
• Risk factors include long time tobacco use
• Circumcision drops the odds somewhat

4
Circumcision

• Surgical removal of the foreskin
• Common, especially in North America
• Performed for religious or hygienic purposes
• Occasionally performed as a rite of passage
• White males whose mothers attended college are
  the most likely to endure

5
A Good Thing?

• American Academy of Pediatrics has gone back and
  forth on this
• Impact sexuality?
• Masters and Johnson said no
• NHSLS found more sexual problems with
  uncircumcised men

6
The Scrotum

• Pouch of skin beneath the groin which enclose the
  testes (gonads) which produces sperm and sex
  hormones
• Normally hangs loose but retracts when cold or
  stimulated

7
The Delivery System

• To transport sperm, a long, thin duct, the vas
  deferens, draws sperm from the interior of each
  testes and then when sexually stimulated,
  channels the sperm around the bladder to the
  seminal vesicle to the ejaculatory duct where it
  is combined with other fluids to form semen

8
Does Size Matter?

• Penis size is a matter of great concern for many
  men. Does it really matter?
• Vaginas are most sensitive in their outer
  portion.
• Some women find deep penetration painful.
• Size is not related to body shape, height, race,
  or anything else.

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The Final Word

• Women are no more sexually aroused by depictions
  of large penises than medium or small ones

10
Koro

• Formally known as Genital Retraction Syndrome, or
  shrinking penis
• A cultural phenomenon of epic proportions
• An ancient, bizarre rumor or delusion
• Primarily occurs in Asia and Africa

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No, Im not kidding

• Men believe that they have caught a disease that
  causes their penis to shrink and retract into
  their body.
• Like a turtle, koro (in Malaysian), retracts its
  head into its shell.
• Then you die.

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Many Are Concerned

• Fear spreads like wildfire, wide spread panic
  breaks out, thousands and thousands are convinced
  they are infected.
• They hang on with all they have.
• Penis thievery outbreaks, violence, murder

13
Stopping Koro

• Public education.
• Even public measuring (!) events.
• An anxiety based delusion, similar to a
  contagious panic attack spread among vulnerable
  men with sexual guilt and anxiety