Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by...
-
Upload
dulcie-fowler -
Category
Documents
-
view
215 -
download
1
Transcript of Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by...
![Page 1: Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by humans involve all systems of the animals body –all.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f345503460f94c50dff/html5/thumbnails/1.jpg)
Animal Reproduction
Ch. 10
![Page 2: Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by humans involve all systems of the animals body –all.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f345503460f94c50dff/html5/thumbnails/2.jpg)
Function
• new animals are brought into the production cycle for use by humans
• involve all systems of the animals body– all must work in harmony
![Page 3: Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by humans involve all systems of the animals body –all.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f345503460f94c50dff/html5/thumbnails/3.jpg)
Male
![Page 4: Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by humans involve all systems of the animals body –all.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f345503460f94c50dff/html5/thumbnails/4.jpg)
![Page 5: Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by humans involve all systems of the animals body –all.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f345503460f94c50dff/html5/thumbnails/5.jpg)
![Page 6: Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by humans involve all systems of the animals body –all.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f345503460f94c50dff/html5/thumbnails/6.jpg)
Pathway for Sperm
• Testicle
• Epididymis
• Vas deferens
• Seminal Vessicles
• Prostate Gland
• Cowper’s Gland
• Penis
![Page 7: Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by humans involve all systems of the animals body –all.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f345503460f94c50dff/html5/thumbnails/7.jpg)
Testicles
• Male sex organ– produce hormone
• testosterone– produced in the interstitial cells– controls the animals sex drive– plays role in the development of sex
characteristics
![Page 8: Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by humans involve all systems of the animals body –all.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f345503460f94c50dff/html5/thumbnails/8.jpg)
Male Sex Characteristics
• Makes a male look like a male– broad, massive head
– weight concentrated in the shoulder
– masculine appearance
![Page 9: Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by humans involve all systems of the animals body –all.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f345503460f94c50dff/html5/thumbnails/9.jpg)
Testicles (cont.)
• housed in the scrotum– heat regulating structure
• viable sperm will not develop at body temp.
• Seminiferous tubules– produce sperm
– 50 football fields
![Page 10: Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by humans involve all systems of the animals body –all.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f345503460f94c50dff/html5/thumbnails/10.jpg)
Epididymis
• Four Functions– transport
– storage
– maturation
– concentration of sperm• remove water
![Page 11: Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by humans involve all systems of the animals body –all.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f345503460f94c50dff/html5/thumbnails/11.jpg)
Vas deferens
• transports mature sperm from the tail of the epididymis past the secondary sex glands
![Page 12: Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by humans involve all systems of the animals body –all.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f345503460f94c50dff/html5/thumbnails/12.jpg)
Secondary Sex Glands
• Seminal vessicles– holding place of sperm
– secrete fluid
• Prostate gland– fluid supplies nutrients for sperm
– muscular gland that expels semen
![Page 13: Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by humans involve all systems of the animals body –all.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f345503460f94c50dff/html5/thumbnails/13.jpg)
Secondary Sex Glands
• Cowper’s Gland– fluid cleans the urethra
– thickens semen
![Page 14: Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by humans involve all systems of the animals body –all.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f345503460f94c50dff/html5/thumbnails/14.jpg)
Urethra and Penis
• Urethra– conduit for urine and semen
• Penis– expels semen into female tract
– protected by sheath
![Page 15: Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by humans involve all systems of the animals body –all.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f345503460f94c50dff/html5/thumbnails/15.jpg)
Female
![Page 16: Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by humans involve all systems of the animals body –all.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f345503460f94c50dff/html5/thumbnails/16.jpg)
![Page 17: Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by humans involve all systems of the animals body –all.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f345503460f94c50dff/html5/thumbnails/17.jpg)
Pathway for Ovum
• Ovaries
• Infundibulum
• Fallopian Tube
• Uterus
• Cervix
• Vagina
• Vulva
![Page 18: Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by humans involve all systems of the animals body –all.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f345503460f94c50dff/html5/thumbnails/18.jpg)
Ovaries
• located near the kidneys
• produces estrogen– female sex hormone
• causes onset of puberty– female body changes
• prepares rest of reproductive tract for embryo
![Page 19: Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by humans involve all systems of the animals body –all.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f345503460f94c50dff/html5/thumbnails/19.jpg)
• all ova present at birth– mature cow
• 75,000 present
• only 20-30 used
Ovaries
![Page 20: Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by humans involve all systems of the animals body –all.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f345503460f94c50dff/html5/thumbnails/20.jpg)
Maturation of Ova
• Primary Follicles– potential ova found near the surface of
the ovary
– Follicle Stimulating Hormone (FSH)• produced in the Pituitary gland
• causes follicle to mature– Graafian follicle
![Page 21: Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by humans involve all systems of the animals body –all.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f345503460f94c50dff/html5/thumbnails/21.jpg)
Maturation of Ova
• Luteinizing Hormone (LH)– produced in the Pituitary Gland– causes rupture of Graafian follicle and
release of ovum
• Corpus Luteum (CL)– scar-like structure produced at rupture
site
![Page 22: Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by humans involve all systems of the animals body –all.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f345503460f94c50dff/html5/thumbnails/22.jpg)
Infundibulum
• top of fallopian tube
• finger-like projections– brings ova into fallopian tube
![Page 23: Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by humans involve all systems of the animals body –all.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f345503460f94c50dff/html5/thumbnails/23.jpg)
Fallopian Tube (Oviduct)
• site of fertilization– upper third
– can occur on either side
• moves ovum to uterus
![Page 24: Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by humans involve all systems of the animals body –all.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f345503460f94c50dff/html5/thumbnails/24.jpg)
Uterus
• consists of main body and two horns
• fetal development occurs in either horn
![Page 25: Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by humans involve all systems of the animals body –all.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f345503460f94c50dff/html5/thumbnails/25.jpg)
Uterus
• Functions1 Pathway for sperm
• contractile actions move sperm
2 Sustains embryo through secretions3 Attachment point for growing embryo4 Expulsion of fetus and membranes
• placenta
• once expelled = afterbirth
![Page 26: Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by humans involve all systems of the animals body –all.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f345503460f94c50dff/html5/thumbnails/26.jpg)
Uterus
• Supported by broad ligament– supplies blood and nerves to uterus
• Caruncles– small projections in mucus layer
– rich in blood
– serve as attachment points for placenta• cotyledons
![Page 27: Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by humans involve all systems of the animals body –all.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f345503460f94c50dff/html5/thumbnails/27.jpg)
Cervix
• Separates uterine cavity from vaginal cavity
• Functions1 Seals uterus
• protect from bacterial and other foreign invasions
2 Passageway for sperm
3 When pregnant, a plug forms protecting the fetus
![Page 28: Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by humans involve all systems of the animals body –all.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f345503460f94c50dff/html5/thumbnails/28.jpg)
Vagina
· Copulatory organ of the female
· Site of semen deposition
![Page 29: Animal Reproduction Ch. 10. Function new animals are brought into the production cycle for use by humans involve all systems of the animals body –all.](https://reader035.fdocuments.net/reader035/viewer/2022081519/56649f345503460f94c50dff/html5/thumbnails/29.jpg)
Vulva
· External reproductive organ
· Used as an aid in heat detection