reproductive system male anatomy & physiology chapter 28
TRANSCRIPT
![Page 1: Reproductive System Male Anatomy & Physiology Chapter 28](https://reader036.vdocument.in/reader036/viewer/2022081807/56649e865503460f94b89e87/html5/thumbnails/1.jpg)
Reproductive System
Male Anatomy & Physiology
Chapter 28
![Page 2: Reproductive System Male Anatomy & Physiology Chapter 28](https://reader036.vdocument.in/reader036/viewer/2022081807/56649e865503460f94b89e87/html5/thumbnails/2.jpg)
Basic Vocabulary• Gametes = sex cells (sperm & eggs), produced by
meiosis• Gonads = reproductive organs that produce gametes
(testes & ovaries) • Fertilization = process during which egg and sperm
unite• Zygote = fertilized egg• Gynecology = branch of medicine concerned with
treatment of female reproductive system• Urology = studies urinary system & disorders of male
reproductive system
![Page 3: Reproductive System Male Anatomy & Physiology Chapter 28](https://reader036.vdocument.in/reader036/viewer/2022081807/56649e865503460f94b89e87/html5/thumbnails/3.jpg)
Egg1n
Haploidnucleus
Fertilization Results In A Diploid Zygote
Sperm1nHaploid
nucleus
![Page 4: Reproductive System Male Anatomy & Physiology Chapter 28](https://reader036.vdocument.in/reader036/viewer/2022081807/56649e865503460f94b89e87/html5/thumbnails/4.jpg)
Sperm1n
Fertilization Results In A Diploid Zygote
Egg1n
Haploidnucleus
Haploidnucleus
![Page 5: Reproductive System Male Anatomy & Physiology Chapter 28](https://reader036.vdocument.in/reader036/viewer/2022081807/56649e865503460f94b89e87/html5/thumbnails/5.jpg)
Sperm1n
Fertilization Results In A Diploid Zygote
Egg1n
Haploidnucleus
Haploidnucleus
![Page 6: Reproductive System Male Anatomy & Physiology Chapter 28](https://reader036.vdocument.in/reader036/viewer/2022081807/56649e865503460f94b89e87/html5/thumbnails/6.jpg)
Sperm1n
Fertilization Results In A Diploid Zygote
Egg1n
Haploidnucleus
Haploidnucleus
![Page 7: Reproductive System Male Anatomy & Physiology Chapter 28](https://reader036.vdocument.in/reader036/viewer/2022081807/56649e865503460f94b89e87/html5/thumbnails/7.jpg)
Sperm1n
Fertilization Results In A Diploid Zygote
Egg1n
Haploidnucleus
Haploidnucleus
![Page 8: Reproductive System Male Anatomy & Physiology Chapter 28](https://reader036.vdocument.in/reader036/viewer/2022081807/56649e865503460f94b89e87/html5/thumbnails/8.jpg)
From Zygote to Embryo
Zygote2n
Zygote
2n
![Page 9: Reproductive System Male Anatomy & Physiology Chapter 28](https://reader036.vdocument.in/reader036/viewer/2022081807/56649e865503460f94b89e87/html5/thumbnails/9.jpg)
Cleavage
From Zygote to Embryo
![Page 10: Reproductive System Male Anatomy & Physiology Chapter 28](https://reader036.vdocument.in/reader036/viewer/2022081807/56649e865503460f94b89e87/html5/thumbnails/10.jpg)
Cleavage
From Zygote to Embryo
![Page 11: Reproductive System Male Anatomy & Physiology Chapter 28](https://reader036.vdocument.in/reader036/viewer/2022081807/56649e865503460f94b89e87/html5/thumbnails/11.jpg)
Cleavage
From Zygote to Embryo
![Page 12: Reproductive System Male Anatomy & Physiology Chapter 28](https://reader036.vdocument.in/reader036/viewer/2022081807/56649e865503460f94b89e87/html5/thumbnails/12.jpg)
Cleavage
From Zygote to Embryo
![Page 13: Reproductive System Male Anatomy & Physiology Chapter 28](https://reader036.vdocument.in/reader036/viewer/2022081807/56649e865503460f94b89e87/html5/thumbnails/13.jpg)
Morula
From Zygote to Embryo
![Page 14: Reproductive System Male Anatomy & Physiology Chapter 28](https://reader036.vdocument.in/reader036/viewer/2022081807/56649e865503460f94b89e87/html5/thumbnails/14.jpg)
• Puberty = process of physical changes by which a child’s body becomes an adult body capable of reproduction
• Puberty is initiated by production of FSH and LH which cause the development of secondary sexual characteristics
Secondary sexual characteristics
![Page 15: Reproductive System Male Anatomy & Physiology Chapter 28](https://reader036.vdocument.in/reader036/viewer/2022081807/56649e865503460f94b89e87/html5/thumbnails/15.jpg)
I. MALE ANATOMY• Scrotum = sac containing the testes; sperm develop
in the testes• Normal sperm production requires a temperature
about 2-3 degrees C below body T• Testes develop near kidneys and start descending
during the 7th month of fetal development
![Page 16: Reproductive System Male Anatomy & Physiology Chapter 28](https://reader036.vdocument.in/reader036/viewer/2022081807/56649e865503460f94b89e87/html5/thumbnails/16.jpg)
• Epididymis = site of sperm maturation• Vas deferens (or ductus deferens) = duct that
transports sperm from the epididymis towards the urethra
• Urethra = transports both semen & urine• Semen = sperm + the fluids secreted by accessory sex
glands
![Page 17: Reproductive System Male Anatomy & Physiology Chapter 28](https://reader036.vdocument.in/reader036/viewer/2022081807/56649e865503460f94b89e87/html5/thumbnails/17.jpg)
Accessory Sex Glands:• Seminal vesicles = glands that secrete alkaline
fructose rich fluid; used to neutralize acidic environment of male urethra & vagina; fructose is used for ATP production of sperm cells
• Seminal vesicles make 60% of the volume of semen
![Page 18: Reproductive System Male Anatomy & Physiology Chapter 28](https://reader036.vdocument.in/reader036/viewer/2022081807/56649e865503460f94b89e87/html5/thumbnails/18.jpg)
• Prostate gland = secretes slightly acidic fluid that contributes to sperm motility and viability
• Prostate gland makes up 25% of the volume of semen• Bulbourethral glands (Cowper’s glands) = secrete
an alkaline fluid into the urethra that protects the sperm by neutralizing acids from urethra
Bulbourethral gland