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23 Cards in this Set
- Front
- Back
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Human Reproduction: Male Reproductive Physiology
- soda...? (details pathway of sperm) |
- SEVEN UP
> Seminiferous Tubules > Epididymis > Vas Deferens > Ejaculatory Duct > Nothing hahahaha > Urethra > Penis |
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Human Reproduction: Female Reproductive Anatomy
keywords |
- ovary
- fallopian tube - uterus - cervix |
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Human Reproduction: Female Sex Hormones
whats the head-boss hormone? |
- GnRH
> regulates LH / FSH > these regulate ovaries secretion of: > estrogen > progesterone |
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Female Reproduction: Estrogen
what two structures secrete it? what does increased levels of Estrogen cause? |
- Ovarian Follicle and the Corpus Luteum secrete estrogen.
- thickening of the endometrium (uterine wall) |
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Female Reproduction: Progesterone
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- Corpus Luteum secretes progesterone
> this stimulates/maintains development of endometrium wall in prep for zygote implantation. |
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Female Reproduction: Menstrual Cycle pt. 1
- Follicular phase |
- low reproductive hormone levels
> shuts off negative feedback to hypothalamus > enables hypothalamus to secrete GnRH. > this causes FSH to be secreted from the Anterior Pituitary gland. > Increased FSH levels cause initiation of follicular maturation (follicle ->>> ovary). > ovary secretes estrogennn. |
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Female Reproduction: Menstrual Cycle pt. 2
- Ovulation > whats it caused by? |
- when follicle bursts and releases ovum to oviduct (fallopian tubes).
> caused by higher LH levels, which is caused by higher estrogen levels secreted my mature follicle. |
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Female Reproduction: Menstrual Cycle pt.3
- Luteal Phase |
- LH induces ruptured follicle to form into Corpus Luteum.
> secretes Progesterone > causes glands of endometrium to grow and mature for implantation of the embryo. > secretes Estrogen > Promotes thickening of endometrium wall. |
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Female Reproduction: Menstrual Cycle pt. 4
- Menstruation > 2 scenarios |
- If not fertilized
> corpus luteum atrophies > drop in progesterone/estrogen levels > endometrium sloughs off + menstrual flow If fertilized > developing placenta secretes hCG > maintains corpus luteum > supply of estrogen/progesterone maintained. > uterus sustained |
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Plant Sexual Reproduction:
- 2 generation types |
- gametophyte generation
- sporophyte generation |
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Plant Sexual Reproduction: Gametophyte Generation
characteristics? |
- Haploid
- produces gametes by MITOSIS - Sexually reproduce |
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Plant Sexual Reproduction: Sporophyte Generation
characteristics? what do the spores change into? |
- Diploid
- produce haploid spores by MEIOSIS > spores divide by mitosis to produce gametophytes - reproduce ASEXUALLY |
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Plant Sexual Reproduction: Angiosperms sexual reprod.
- 4 parts to its anatomy |
- Stamen
- Pistil - Petals - Sepals |
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Angiosperm Anatomy: Stamen
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- male organ of the flower
> filament: stalk like > anther: terminal sac > produces haploid spores that develop into pollen grains. |
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Angiosperm Anatomy: Pistil
3 parts? |
- female organ of flower
> Stigma - sticky top part, catches pollen. > Style - tube-like structure connecting stigma to the ovary. > Ovary - base of pistil, contains ovules with haploid egg nuclei. |
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Angiosperm Anatomy: Petals
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- specialized leaves that protect pistil.
- they help attract insects, which helps in the fertilization process. |
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Angiosperm Anatomy: Sepals
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- green leaves that cover and protect the flower during early development.
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Asexual Reproductive Mechanisms
4 types |
- Fission
- Budding - Regeneration - Parthenogenesis |
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Plant Asexual Reproduction:
2 types |
- Spore Formation
- Vegetative Propagation |
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Plant Asexual Reproduction: Spore Formation
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- same as sporophyte process in sexual reproduction example in angiosperms
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Plant asexual Reproduction: Vegetative Propagation
2 types |
- Natural Vegetative
- Artificial Vegetative |
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Vegetative Propagation: Natural
4 parts |
- Bulbs: split into several bulbs
- Tubers: underground stems w/buds, can develop into adult plant - Runners: stems running around above/along ground, > can produce new roots and upright stems. - Rhizomes (stolons): woody, underground stems. > can develop new upright stems. |
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Vegetative Propagation: Artificial
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- AGRICULTURE
> cut piece of stem can develop new roots in water or moist ground. > auxin hormones can be used to increase root formation. > stems can take root when bent toward ground, cover with soil LAYERING. |
