The Reproductive System- Male and Female Reproductive Systems

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The Reproductive System-Male and Female
Reproductive Systems

• Learn more about the Reproductive System here!!

S.Mayette E. Rogers
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The Index Page

• There are two types of Reproduction
• Human Development and Reproduction
• Different parts of the Male Reproduction System

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Types of Reproduction

• There are two types of Reproduction asexual and
  sexual.
• Asexual-produces offspring genetically identical
  to the parent examples would be budding, fission,
  fragmentation, it allows an organism to produce
  offspring without the time and courtship of
  finding a mate or mating.
• Sexual reproduction-new individuals are produced
  by the fusion of haploid gametes to form a
  diploid zygote, sperm are the male gametes and
  the ovaries are the female gametes, Sexual
  reproduction offers the benefit of generating
  genetic variation among offspring, which enhances
  the chances of the population's survival, two
  individuals are needed for this type of
  reproduction

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Human Development and Reproduction

• Human reproduction employs internal fertilization
• Depends on the action of the hormones, the
  Nervous System, and the Reproductive System
• Gonads, are the sex organs that produce gametes
• The male gonads are the testes, which produce
  sperm and the male sex hormones

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The Male Reproductive System

• The testes are suspended outside the abdominal
  cavity by the scrotum, it is the pouch of skin
  that keeps the testes close or far from the body
  at an optimal temperature for the sperm to
  develop.
• Sperm pass through the vas deferens and connect
  to a short ejaculatory duct that connects to the
  urethra. The urethra passes through the penis and
  opens to the outside. Secretions from the seminal
  vesicles add fructose and prostaglandins to sperm
  as they pass. The prostate secretes a milky
  alkaline fluid. Sperm and secretions make up
  semen.

S.Mayette
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More about the Reproductive System
The urethra goes through the penis. In humans,
the penis contains three cylinders of spongy,
erectile tissue. During arousal, these

• The bulbourethral glands or Cowpers glands are
  the third of the accessory structures. These are
  a small pair of glands along the urethra below
  the prostate. Their fluid is secreted just before
  emission of the semen, thus it is thought that
  this fluid may serve as a lubricant for inserting
  the penis into the, but because the volume of
  these secretions is very small, people are not
  totally sure of this function.
• In humans the penis contains three cylinders of
  spongy erectile tissue. During arousal these
  become filled with blood from the arteries that
  supply them and the pressure seals off the veins
  that drain these areas.
• This causes an erection, which is necessary for a
  mans penis to enter the vagina.

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• The male reproductive system is like the female
  in that, they both consist of those organs whose
  function is to produce a new individual.
• This system contains a pair of testes and a
  network of excretory ducts (epididymus, ductus
  deferens), (and ejaculatory ductus), seminal
  vesicles, the prostate gland, the Cowpers gland,
  and the penis.
• The male sexual response includes the erection
  and the orgasm along with the ejaculation of
  semen.
• More about the System

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Male Reproductive System
Seminal Vesicle
Bladder
Pubic Symphysis
Rectum
Vas deferens
Prostate Gland
Cowpers Gland
Urethra
Anus
Glans Penis
Epididymus
Testes
Foreskin
Scrotum
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The Bladder

• Its an organ that collects urine excreted by the
  kidneys prior to the disposal of urination

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Pubic Symphysis

• The pubic symphysis is the midline cartilaginous
  joint uniting the superior rami of the left and
  right pubic bones (pubis).

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Vas Deferens

• The vas deferens are also called ductus deferens.
  There are two ducts, they are muscular tubes
  connecting the left and right epididymus to the
  ejaculatory ducts to move sperm. Each tube is
  about 30 centimeters long.

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Cowpers Gland

• The Cowpers Gland is also known as the
  bulbourethral gland.
• They are located behind and lateral to the
  membranous portion of the urethra at the base of
  the penis

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Urethra

• The Urethra is the tube which connects to the
  urinary bladder to the outside of the body.

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Glans Penis

• The Glans Penis is the sensitive erectile tip of
  the penis. It is also referred to as the head of
  the penis, although thats not the proper medical
  terminology.

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Foreskin

• Its the retractable double-layered fold of skin
  that covers the Glans Penis and protects the
  urinary meatus when the penis is not erect.

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Scrotum

• The Scrotum is the bag of skin and muscle
  containing the testicles. Its an extension from
  the abdomen and is located between the penis and
  the anus.

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Testes

• The testes are the male generative glands. There
  are two of them in mammals. They are often
  contained within an extension of the abdomen
  called the scrotum.

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Epididymis

• Its a narrow ,tightly coiled tube connecting
  efferent ducts from the rear of each testicle to
  the vas deferens. Its divided into three
  different parts, the head, the body and the tail.

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Anus

• The anus is the external opening of the rectum.
  The closure is controlled by the sphincter
  muscles .Feces are expelled from the body through
  the anus.

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The Prostate Gland

• The main function is to store and secrete a
  clear, slightly basic fluid that constitutes up
  to one-third the volume of semen. The human
  prostate is slightly larger than a walnut.

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Rectum

• The rectum is the final straight portion of the
  large intestine.

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Seminal Vesicles

• The Seminal Vesicles are pair of simple tubular
  glands posterinferior to the urinary bladder of
  males. They secrete a significant portion of the
  fluid that ultimately becomes semen.