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Презентация на тему Male reproductive system
Содержание
- 2. Male Reproductive systemFunctions of the male reproductive
- 3. Sperm {male sex cells} Structure of the sperm
- 4. Sperm {male sex cells} Structure of the sperm HeadMidpieceTail
- 5. Sperm {male sex cells} Structure of the sperm
- 6. Structure of the sperm HeadHas little cytoplasmEnzymes
- 7. Structure of the sperm MidpieceContains mitochondria which
- 8. Male Reproductive system
- 9. Functions of the male reproductive system To
- 11. Seminiferous tubules:Many tightly coiled tubules.Sperm
- 12. LH (Luteinizing Hormone):Stimulates secretion of the
- 13. 1) sperms produced in seminiferous tubules (not
- 14. 4) Sperm cells mix with fluids
- 16. Male Reproductive systemPenisThe male organ that deposits
- 17. Скачать презентацию
- 18. Похожие презентации
Male Reproductive systemFunctions of the male reproductive system:To produce sperm cells.To deliver sperm cells to the female reproductive system.
Слайд 2
Male Reproductive system
Functions of the male reproductive system:
To
produce sperm cells.
reproductive system.
Слайд 6
Structure of the sperm
Head
Has little cytoplasm
Enzymes at the
top of the head help penetrate an egg cell
during fertilization.
Слайд 7
Structure of the sperm
Midpiece
Contains mitochondria which supplies the
sperm with energy to propel themselves through the female
reproductive systemTail
Is a powerful flagellum that enables the sperm cell to move
fig.3, page 997
Слайд 9
Functions of the male reproductive system
To produce
sperm cells .
To deliver sperm cells to the female
reproductive system.Testes (testis singular)
Begin to produce sperm during adolescent stage
of development (puberty).
Fig. 1 , pg 996
Слайд 11
Seminiferous tubules:
Many tightly coiled tubules.
Sperm cells
are produced in the lining
of seminiferous tubules.
The
functioning of the testes is regulated by two hormones:
1) LH : Luteinizing Hormone from interior pituitary gland
2) FSH: Follicle Stimulating Hormone
Слайд 12
LH (Luteinizing Hormone):
Stimulates secretion of the sex
hormone (testosterone).
FSH (Follicle Stimulating Hormone):
Stimulates sperm production in
the testes.Maturation and storage of sperm cells:
Typical adult male produces several hundred
million sperm cells each day.
Слайд 13 1) sperms produced in seminiferous tubules (not capable
of swimming).
2) sperm enter a long coiled tube,
Epididymis.functions of epididymis:
Sperm becomes mature (able to move).
Sperm is stored for 2-3 days.
3)Vas deferens long tube ; sperm cells move through the vas deferens into the urethra.
Слайд 14 4) Sperm cells mix with fluids
sperm cell + fluid = semen.
5) Sperm
leaves the body through the urethra.*Semen is sperm and fluids secreted by
exocrine glands.
Importance of fluids:
Nourish the sperm.
Aid sperm passage through the female reproductive system.
Слайд 16
Male Reproductive system
Penis
The male organ that deposits sperm
in the female reproductive system
The penis contains 3 cylinders
of spongy tissues. When the spaces in these cylinders are filled with blood, the penis become erectFigure 4, , Page 998
