AZIZAH, S.PD REPRODUCTIVE SYSTEM
REPRODUCTION <ul><li>REPRODUCTION is… </li></ul><ul><li>Function of REPRODUCTION is </li></ul><ul><ul><li>Ensures that eac...
REPRODUCTION <ul><li>There are two types of reproduction </li></ul><ul><ul><li>Sexual, which is need male and female sex c...
MALE REPRODUCTIVE SYSTEM
MALE REPRODUCTIVE ORGANS <ul><li>Testis    male  gonads  which produce sperm </li></ul><ul><li>Epidydimis </li></ul><ul><...
MATURATION OF MALES <ul><li>Puberty in males happen about two years later that females (ages 10 to 15) </li></ul><ul><li>P...
Control of LH/ICSH  and FSH production in males
testis <ul><ul><li>Seminiferous tubules: </li></ul></ul><ul><ul><ul><li>Contain receptor proteins for FSH in Sertoli cells...
SPERMATOGENESIS <ul><li>Spermatogonia: </li></ul><ul><ul><li>Replicate initially by mitosis. </li></ul></ul><ul><li>One of...
FEMALE REPRODUCTIVE ORGANS
FEMALE REPRODUCTIVE SYSTEM <ul><li>Ovary   female gonads which produce  ova/eggs </li></ul><ul><li>Egg/ova </li></ul><ul>...
MATURATION OF FEMALES  <ul><li>Puberty in females happen at 8 to 13 years of age </li></ul><ul><li>Puberty begins with a c...
CONTROL OF FSH AND LH IN FEMALES
OVARY <ul><li>In the ovary, the egg begins development inside a sac of cells known as a  follicle .  </li></ul><ul><li>Eac...
OOGENESIS
OOGENESIS  (CONTINUED) <ul><li>In females, meiosis begins before birth, but the </li></ul><ul><li>oogenesis process is not...
MENSTRUAL CYCLE
MENSTRUAL CYCLE  (CONTINUED)
<ul><li>1 st  - 7 th  day : secretion of FSH and LH, uterine lining is broken down and shed.  </li></ul><ul><li>Both FSH a...
<ul><li>If pregnancy does not occur, the corpus luteum degenerates, resulting in a reduction in the amount of progesterone...
MENSTRUAL CYCLE  (CONTINUED)   FSH and LH released Uterine lining (endometrium) is shed, maturation of follicle Follicle s...
FERTILIZATION <ul><li>As fertilization occurs, secondary oocyte completes 2 nd  meiotic division. </li></ul><ul><li>Sperm ...
FERTILIZATION  (CONTINUED) <ul><li>Cleavage: </li></ul><ul><ul><li>30-36 hrs. after fertilization, the zygote divides by m...
FERTILIZATION  (CONTINUED)
FUNCTION OF PLACENTA <ul><li>Site for exchange of gases and other molecules between maternal and fetal blood. </li></ul><u...
AMNION <ul><li>Envelop the embryo and umbilical cord. </li></ul><ul><li>Amniotic fluid initially is isotonic, but as fetus...
<ul><li>TEMPORARY </li></ul><ul><ul><li>Pill </li></ul></ul><ul><ul><li>Spermicides </li></ul></ul><ul><ul><li>IUD </li></...
<ul><li>PERMANENT </li></ul><ul><ul><li>Vasectomy </li></ul></ul><ul><ul><li>Tubal ligation </li></ul></ul>
<ul><li>Produce inflammation of the urethra, epididymis, cervix, or oviducts; treated and cured with antibiotics  </li></u...
Upcoming SlideShare
Loading in …5
×

1.2 Reproductive System

4,036 views

Published on

Published in: Health & Medicine, Technology
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
4,036
On SlideShare
0
From Embeds
0
Number of Embeds
28
Actions
Shares
0
Downloads
234
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide

1.2 Reproductive System

  1. 1. AZIZAH, S.PD REPRODUCTIVE SYSTEM
  2. 2. REPRODUCTION <ul><li>REPRODUCTION is… </li></ul><ul><li>Function of REPRODUCTION is </li></ul><ul><ul><li>Ensures that each species continues to live on although individual organisms may die </li></ul></ul><ul><ul><li>Need for the vital for the survival of all species </li></ul></ul>
  3. 3. REPRODUCTION <ul><li>There are two types of reproduction </li></ul><ul><ul><li>Sexual, which is need male and female sex cells and happened in multicellular organisms and produces offspring that are genetically different from their parents. </li></ul></ul><ul><ul><li>Asexual, happen through the cell division in unicellular organisms and produces offspring genetically identical to their parent </li></ul></ul><ul><ul><li>The first step of sexual reproduction is fertilization , when the male sex cells (sperm) meets female sex cells (ovum/egg) </li></ul></ul>
  4. 4. MALE REPRODUCTIVE SYSTEM
  5. 5. MALE REPRODUCTIVE ORGANS <ul><li>Testis  male gonads which produce sperm </li></ul><ul><li>Epidydimis </li></ul><ul><li>Scrotum </li></ul><ul><li>Sperm duct </li></ul><ul><li>Urethra </li></ul><ul><li>Penis </li></ul><ul><li>Male sex glands </li></ul>
  6. 6. MATURATION OF MALES <ul><li>Puberty in males happen about two years later that females (ages 10 to 15) </li></ul><ul><li>Puberty begins with a change of hormone levels </li></ul><ul><li>At puberty the hypothalamus releases increased amounts of gonadotropin-releasing hormone (GnRH), resulting in increased levels of follicle stimulating hormone (FSH) and luteinizing hormone (LH) or interstitial cell-stimulating hormone (ICSH) in males, ICSH stimulates the testes to produce testosterone, the primary sex hormone in males. </li></ul>
  7. 7. Control of LH/ICSH and FSH production in males
  8. 8. testis <ul><ul><li>Seminiferous tubules: </li></ul></ul><ul><ul><ul><li>Contain receptor proteins for FSH in Sertoli cells. </li></ul></ul></ul><ul><ul><ul><li>FSH stimulates spermatogenesis to occur. </li></ul></ul></ul><ul><ul><li>Leydig cells: </li></ul></ul><ul><ul><ul><li>LH stimulates secretion of testosterone. </li></ul></ul></ul><ul><ul><ul><li>Contain receptor proteins for LH. </li></ul></ul></ul>
  9. 9. SPERMATOGENESIS <ul><li>Spermatogonia: </li></ul><ul><ul><li>Replicate initially by mitosis. </li></ul></ul><ul><li>One of the 2 primary spermatocytes undergoes meiosis: </li></ul><ul><ul><li>2 nuclear divisions: </li></ul></ul><ul><ul><ul><li>1 st meiotic division produces 2 secondary spermatocytes. </li></ul></ul></ul><ul><ul><ul><li>2 nd meiotic division produces 4 spermatids. </li></ul></ul></ul>
  10. 10. FEMALE REPRODUCTIVE ORGANS
  11. 11. FEMALE REPRODUCTIVE SYSTEM <ul><li>Ovary  female gonads which produce ova/eggs </li></ul><ul><li>Egg/ova </li></ul><ul><li>Oviduct </li></ul><ul><li>Uterus </li></ul><ul><li>Cervix </li></ul><ul><li>Vagina </li></ul>
  12. 12. MATURATION OF FEMALES <ul><li>Puberty in females happen at 8 to 13 years of age </li></ul><ul><li>Puberty begins with a change of hormone levels </li></ul><ul><li>At puberty the hypothalamus releases increased amounts of gonadotropin-releasing hormone (GnRH), resulting in increased levels of follicle stimulating hormone (FSH) and luteinizing hormone (LH). Increased levels of FSH stimulate the development of follicles, saclike structures that produce oocytes in the ovary, and the increased luteinizing hormone stimulates the ovary to produce larger quantities of estrogens. The increasing supply of estrogen is responsible for the secondary sexual characteristics. </li></ul>
  13. 13. CONTROL OF FSH AND LH IN FEMALES
  14. 14. OVARY <ul><li>In the ovary, the egg begins development inside a sac of cells known as a follicle . </li></ul><ul><li>Each month, one of these follicles develops and releases its product. </li></ul><ul><li>This release through the wall of the ovary is known as ovulation. </li></ul>
  15. 15. OOGENESIS
  16. 16. OOGENESIS (CONTINUED) <ul><li>In females, meiosis begins before birth, but the </li></ul><ul><li>oogenesis process is not completed. When birth, woman have a primary oocytes </li></ul><ul><li>Primary oocytes begin to undergo meiosis in the normal manner at puberty and it will form a secondary oocytes </li></ul><ul><li>Secondary oocytes will completes 2 nd meiotic division as fertilization occurs. </li></ul><ul><li>If fertilization doesn’t occur, the oocytes cell will release out of the body through menstruation </li></ul>
  17. 17. MENSTRUAL CYCLE
  18. 18. MENSTRUAL CYCLE (CONTINUED)
  19. 19. <ul><li>1 st - 7 th day : secretion of FSH and LH, uterine lining is broken down and shed. </li></ul><ul><li>Both FSH and LH stimulate the maturation of a single follicle (follicle increase in size) in one of the ovaries </li></ul><ul><li>The follicle secretes increased amounts of estrogen that cause the lining of the uterus to increase in thickness. </li></ul><ul><li>14 th day: ovulation occur, the remains of the follicle is converted into a corpus luteum by the action of LH. </li></ul><ul><li>Corpus luteum produce both estrogen and progesterone. </li></ul><ul><li>Estrogen and progesterone stimulate the development of the endometrium and preparation of the uterine inner lining for implantation of a zygote. </li></ul>MENSTRUAL CYCLE (CONTINUED)
  20. 20. <ul><li>If pregnancy does not occur, the corpus luteum degenerates, resulting in a reduction in the amount of progesterone needed to maintain the </li></ul><ul><li>lining of the uterus, and the lining is shed. </li></ul>MENSTRUAL CYCLE (CONTINUED)
  21. 21. MENSTRUAL CYCLE (CONTINUED) FSH and LH released Uterine lining (endometrium) is shed, maturation of follicle Follicle secretes estrogen Lining of the uterus increase in thickness ovulation LH change remain of the follicle into a corpus luteum Corpus luteum produce estrogen and progesteron Uterine lining (endometrium) increase in thickness Fertilization doenst occur, corpus luteumdegenerates, progesteron reducted
  22. 22. FERTILIZATION <ul><li>As fertilization occurs, secondary oocyte completes 2 nd meiotic division. </li></ul><ul><li>Sperm enters ovum cytoplasm. </li></ul><ul><li>Ovum nuclear membrane disappears, zygote formed. </li></ul><ul><li>. </li></ul>
  23. 23. FERTILIZATION (CONTINUED) <ul><li>Cleavage: </li></ul><ul><ul><li>30-36 hrs. after fertilization, the zygote divides by mitosis. </li></ul></ul><ul><ul><li>50-60 hours after fertilization, it develops into morula. </li></ul></ul><ul><li>Blastocyst develops: </li></ul><ul><li>Inner cell mass </li></ul><ul><ul><ul><li>Fetus. </li></ul></ul></ul><ul><ul><ul><li>Surrounding chorion: </li></ul></ul></ul><ul><ul><ul><li>Trophoblasts form placenta. </li></ul></ul></ul>
  24. 24. FERTILIZATION (CONTINUED)
  25. 25. FUNCTION OF PLACENTA <ul><li>Site for exchange of gases and other molecules between maternal and fetal blood. </li></ul><ul><li>Gas exchange: </li></ul><ul><ul><li>0 2 and C0 2 . </li></ul></ul><ul><li>Nutrient exchange. </li></ul><ul><li>Waste exchange. </li></ul><ul><li>Synthesis of proteins and enzymes. </li></ul>
  26. 26. AMNION <ul><li>Envelop the embryo and umbilical cord. </li></ul><ul><li>Amniotic fluid initially is isotonic, but as fetus develops; concentration changes by urine and sloughed cells of the fetus, placenta, and amniotic sac. </li></ul>
  27. 27. <ul><li>TEMPORARY </li></ul><ul><ul><li>Pill </li></ul></ul><ul><ul><li>Spermicides </li></ul></ul><ul><ul><li>IUD </li></ul></ul><ul><ul><li>Condoms </li></ul></ul><ul><ul><li>Implants </li></ul></ul><ul><ul><li>Injections </li></ul></ul>
  28. 28. <ul><li>PERMANENT </li></ul><ul><ul><li>Vasectomy </li></ul></ul><ul><ul><li>Tubal ligation </li></ul></ul>
  29. 29. <ul><li>Produce inflammation of the urethra, epididymis, cervix, or oviducts; treated and cured with antibiotics </li></ul><ul><ul><li>Gonorrhea </li></ul></ul><ul><ul><li>Chlamidia </li></ul></ul><ul><li>Produce sores on the external genitals </li></ul><ul><ul><li>Genital herpes, cured by antiviral drugs </li></ul></ul><ul><ul><li>Syphillis, cured by antibiotics </li></ul></ul><ul><li>Viral diseases that affect organ systems </li></ul><ul><ul><li>AIDS </li></ul></ul><ul><ul><li>Hepatitis B </li></ul></ul><ul><ul><li>Both can be spread by sexual contact or blood. </li></ul></ul>

×