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Male Reproductive System

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Male Reproductive System Here s what you can do . Perform self-exams Males should gently message each testicle to detect any bumps or abnormalities Do this at ... – PowerPoint PPT presentation

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Title: Male Reproductive System


1
Male Reproductive System
2
Before we begin
  • We need to be mature and respectful during this
    unit
  • I guarantee you will have questionsASK!
  • Why do we need to know the Male and Female
    Reproductive Systems?

3
Functions
  • Produce and store sperm
  • Sperm male reproductive cell
  • Transfer sperm to female body during sexual
    intercourse the act of the male penis being
    inserted into the female vagina
  • Reproduce!!! When a sperm (male) egg (female)
    join.called Fertilization

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How the male body changes
  • During early teen years (12-15) the body starts
    to produce testosterone the male sex hormone.
  • Testosterone triggers many physical changes
  • Commonly called secondary sex characteristics
  • These changes are known as puberty.
  • After puberty begins, a male is capable of
    producing sperm for the rest of his life.

6
Secondary Sex Characteristics
  • Larger muscles
  • Longer, heavier bones
  • Thicker, tougher skin
  • Deeper voice
  • Growth of body hair
  • Development of pubic hair
  • Greater muscle mass
  • V-shaped torso
  • Enlargement of penis, scrotum, and testes
  • Increased metabolic rate
  • Sex drive
  • Ejaculation of semen

7
Male Diagram
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9
External Reproductive Organs
  • Testes two small glands that secrete
    testosterone and produce sperm

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11
Scrotum
  • Thin walled, muscular pouch which holds and
    protects the testes
  • Controls the temperature of the sperm (1-2
    below body temperature) through muscular
    contraction and relaxation

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13
Epididymis
  • Epididymis tube above the testis in which sperm
    is matured and stored

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15
Vas Deferens
  • Vas Deferens long tube which carries sperm to
    an organ called the seminal vesicle

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Seminal Vesicles
  • Seminal Vesicle produces fluid that mixes with
    sperm to nourish the sperm and make it more
    mobile

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Prostate Gland
  • A small gland that surrounds the urethra at the
    base of the bladder
  • Releases an alkaline solution to protect the
    sperm from the slightly acidic environment of the
    vaginal tract
  • Secretes a milky fluid that makes up the majority
    of semen

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Cowpers Gland
  • Lubricates the urethra and neutralizes the acid
    content
  • These three are known as accessory glands
    Seminal Vesicle, Prostate, Cowpers)

22
Cowpers Gland
23
Urethra
  • A small tube that extends from the bladder as
    well as from each vas deferens through the penis
    to the outside of the body
  • Carries both urine and semen out of the body
    through the penis

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Penis
  • The external reproductive organ composed of a
    spongy tissue that contains many blood vessels
  • As a result of increased blood flow the penis
    becomes enlarged and erect During arousal, blood
    flow to the penis increases - vasocongestion.
  • This causes an erection an enlargement of the
    penis
  • Bodys preparation for sexual intercourse

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The male penis
  • When penis becomes erect, semen can be ejected
    from the body
  • Semen thick fluid containing sperm and other
    secretions
  • A series of muscular contractions occurs, thus
    creating an ejaculation expulsion of semen from
    the male penis.
  • Nocturnal Emissions may occur ejaculation that
    occurs during sleep. This is perfectly normal!

28
The path of sperm cells from production to
release
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7
5
6
Cowpers Gland
3
2
1
29
The path of sperm cells from production to
release
  • Sperm cells are produced in the (1)testes
  • Stored in the (2)epididymis
  • Travel through the (3)vas deferens
  • Combine with fluid from the (4)seminal vesicles
  • Combine with fluid from the (5)prostate gland
  • Combine with fluid from the (6)Cowpers gland
  • Now called semen, travels through the (7)urethra
    in the penis
  • Leaves the body through the opening in the penis
    during ejaculation

30
The male Penis
  • Foreskin thin, loose flap is skin that covers
    the tip of the penis
  • Usually removed at birth
  • This is known as circumcision

31
Circumcision
32
Keeping the male reproductive system healthy
  • Bath regularly
  • Wear Protective Equipment
  • Practice Abstinence not having sex before
    marriage to avoid STDs sexually transmitted
    disease
  • Perform self-exams
  • Get regular check-ups!

33
Staying Healthy
  • Bath regularly
  • All males should wash pubic area with soap and
    water
  • Uncircumsized males need to pull back foreskin
    and clean

34
Heres what you can do
  • . Perform self-exams
  • Males should gently message each testicle to
    detect any bumps or abnormalities
  • Do this at least once a month
  • Looking for signs of testicular cancer!
  • Earlier the detection, the easier it is to treat!

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Problems of the male reproductive system
  • Sterility inability to reproduce
  • Result of too few sperm or sperm of poor quality
  • May be caused by
  • Exposure to chemicals, lead, x-rays, radiation
  • Hormonal imbalances, STDs, steroids!

37
Problems
  • Testicular Cancer
  • Occurs mostly between ages of 14-40
  • Mostly treatable with early detection

38
Problems
  • Prostate Cancer
  • The prostate gland can become enlarged due to
    tumors
  • The earlier you detect this, the greater the
    chance of recovery.

39
Problems
  • Inguinal Hernia- weakness of the wall of the
    inguinal canal coming through the abdominal
    cavity.
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