human reproductive system
TRANSCRIPT
![Page 1: Human reproductive System](https://reader036.vdocuments.us/reader036/viewer/2022062405/55502b2eb4c905de2d8b4b42/html5/thumbnails/1.jpg)
Human Reproductive System
![Page 2: Human reproductive System](https://reader036.vdocuments.us/reader036/viewer/2022062405/55502b2eb4c905de2d8b4b42/html5/thumbnails/2.jpg)
Part Job
Testis Produces sperm cells
Scrotum Sac that holds the testis
Penis Penis Places sperms into the vagina during mating
Vas deferens Carries sperm from testes to urethra
Urethra Carries sperm out of the body
Glands
a. seminal vesicle
b. prostate gland
c. Bulbourethral gland
Provide liquid in which sperm can swimSecretes one of the components of the semenSecretes a milky fluid that is discharged into theurethra as part of the semenMucous secreting glands located at the base of thepenis
![Page 3: Human reproductive System](https://reader036.vdocuments.us/reader036/viewer/2022062405/55502b2eb4c905de2d8b4b42/html5/thumbnails/3.jpg)
Male Reproductive System
![Page 4: Human reproductive System](https://reader036.vdocuments.us/reader036/viewer/2022062405/55502b2eb4c905de2d8b4b42/html5/thumbnails/4.jpg)
![Page 5: Human reproductive System](https://reader036.vdocuments.us/reader036/viewer/2022062405/55502b2eb4c905de2d8b4b42/html5/thumbnails/5.jpg)
The female reproductive system has the following
functions:
• 1. Production of female sex cells
• 2. Reception of sperm cells from the male
• 3. Nurturing the development of and providing nourishment for, the new individual
![Page 6: Human reproductive System](https://reader036.vdocuments.us/reader036/viewer/2022062405/55502b2eb4c905de2d8b4b42/html5/thumbnails/6.jpg)
Part Job
Ovary Produces egg cells
Oviduct Oviduct Passageway of eggs from the ovary to the uterus(also the same place where the egg is fertilized.
Uterus Place where fertilized egg develops
Vagina Receives penis of male during mating
![Page 7: Human reproductive System](https://reader036.vdocuments.us/reader036/viewer/2022062405/55502b2eb4c905de2d8b4b42/html5/thumbnails/7.jpg)
Female Reproductive System
![Page 8: Human reproductive System](https://reader036.vdocuments.us/reader036/viewer/2022062405/55502b2eb4c905de2d8b4b42/html5/thumbnails/8.jpg)
![Page 9: Human reproductive System](https://reader036.vdocuments.us/reader036/viewer/2022062405/55502b2eb4c905de2d8b4b42/html5/thumbnails/9.jpg)
The Menstrual Cycle
![Page 10: Human reproductive System](https://reader036.vdocuments.us/reader036/viewer/2022062405/55502b2eb4c905de2d8b4b42/html5/thumbnails/10.jpg)
![Page 11: Human reproductive System](https://reader036.vdocuments.us/reader036/viewer/2022062405/55502b2eb4c905de2d8b4b42/html5/thumbnails/11.jpg)
Fertilization
• Occurs in upper 1/3 of Fallopian tube
• Once one sperm enters, egg membrane changes
• Fertilized egg = zygote
![Page 12: Human reproductive System](https://reader036.vdocuments.us/reader036/viewer/2022062405/55502b2eb4c905de2d8b4b42/html5/thumbnails/12.jpg)
Implantation
• Implanted into thick walls of uterus
• Chorion membranes dig into uterus to form placenta
• Embryo supported via umbilical cord
• Once pregnant, progesterone levels stay high in mom
![Page 13: Human reproductive System](https://reader036.vdocuments.us/reader036/viewer/2022062405/55502b2eb4c905de2d8b4b42/html5/thumbnails/13.jpg)
1st Trimester
• Heart develops first• Neural tube develops• All body systems appear by
Week 8 – Now a Fetus
![Page 14: Human reproductive System](https://reader036.vdocuments.us/reader036/viewer/2022062405/55502b2eb4c905de2d8b4b42/html5/thumbnails/14.jpg)
2nd Trimester
• Mostly growth• Looks more like a baby• Some preemies survive at this
stage
![Page 15: Human reproductive System](https://reader036.vdocuments.us/reader036/viewer/2022062405/55502b2eb4c905de2d8b4b42/html5/thumbnails/15.jpg)
3rd Trimester
• More growth• Kicking, rolling,
stretching• Eyes open – Week 32• Lungs mature• Rotates to head-down position
![Page 16: Human reproductive System](https://reader036.vdocuments.us/reader036/viewer/2022062405/55502b2eb4c905de2d8b4b42/html5/thumbnails/16.jpg)
Birth
• Labor– Uterine contractions begin– Cervix dilates to 10 cm.
• Birth– Uterus pushes baby through
vaginal canal• Placenta delivered after
![Page 17: Human reproductive System](https://reader036.vdocuments.us/reader036/viewer/2022062405/55502b2eb4c905de2d8b4b42/html5/thumbnails/17.jpg)
![Page 18: Human reproductive System](https://reader036.vdocuments.us/reader036/viewer/2022062405/55502b2eb4c905de2d8b4b42/html5/thumbnails/18.jpg)
Most of this not fun?