Term
| What controls blood testosterone levels |
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Definition
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Term
| What do high blood testosteron levels cause the hypothalamus to do |
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Definition
| it causes it to decrease the secretion of gonadotropin releasing hormone |
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Term
| What cells in the male are targeted by follicle stimulating hormone |
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Definition
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Term
| What does follicle stimulating hormones cause in its target |
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Definition
| It causes Sertoli cells to secrete androgen binding protein |
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Term
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Definition
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Term
| What type of cells does androgen binding protein affect |
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Definition
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Term
| What does androgen binding protein cause in the cells it affects |
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Definition
| it causes spematagonia to bind testosterone which stimulates spermatogenesis |
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Term
| What hormones and chemicals are needed for spermatogenesis to occur |
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Definition
| gonadotropin releasing hormone, follicle stimulating homone, luteinizing hormone, testosterone, androgen binding hormone |
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Term
| What controls spematogenesis |
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Definition
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Term
| When do Sertoli cells secrete inhibin |
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Definition
| when sperm production is sufficient |
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Term
| What is the action of inhibin |
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Definition
| it slows down the secretion of follicle stimulating hormone from anterior pituitary gland |
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Term
| What cells secrete inhibin |
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Definition
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Term
| What are the secretions of Sertoli cells |
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Definition
| androgen binding protein and inhibin |
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Term
| What are the two main components of semen |
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Definition
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Term
| What is seminal fluid made up of |
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Definition
| the secretions of the prostate gland, seminal vesicle, bulbourethral gland, epididymis, and Sertoli cells |
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Term
| What are the functions of seminal fluid(5) |
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Definition
| It provides a medium for the transport of sperm cells, It contains nutrients, It contains antimicrobial agents, It neutralizes the acids in the urethra of the male and the vagina, It contains chemicals that activate the sperm for entry into the ova |
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Term
| What is the main nutrient found in semen and what is it used for |
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Definition
| fructose which the sperm use for ATP production |
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Term
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Definition
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Term
| Where does oogenesis occur |
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Definition
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Term
| When does oogenesis begin |
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Definition
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Term
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Definition
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Term
| What steps of oogenesis occur prior to birth |
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Definition
| a diploid oogonia undergoes mitosis and forms two identical daughter cells called primary oocytes. The primary oocytes begin meiosis 1 but stop at prophase 1 |
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Term
| How many chromosomes do oogonia have |
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Definition
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Term
| How many chromosomes do primary oocytes have |
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Definition
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Term
| What steps of oogenesis occur during childhood |
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Definition
| none-the ovaries are inactive |
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Term
| What steps of oogenesis occur from pubert to menopause |
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Definition
| each month one primary oocyte finishes meiosis 1 which results in a secondary oocyte and a polar body. The secondary oocte then begins meiosis 2 but stops at metaphase 2. |
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Term
| How many chromosomes does the secondary oocyte have |
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Definition
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Term
| How many chromosomes does the polar body have |
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Definition
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Term
| What happens to the polar body |
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Definition
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Term
| What causes the polar body |
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Definition
| uneven division of the cytoplasm |
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Term
| When does secondary oocyte complete meiosis 2 |
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Definition
| only if fertilization occurs |
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Term
| What stage are a woman's eggs in when she is born |
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Definition
| They are primary oocytes that have been arrested at prophase 1 |
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Term
| What stage are the eggs in when they are ovulated |
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Definition
| they have begun meiosis 2 but are stuck at metaphase 2 |
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Term
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Definition
| the continual dying of egg cells |
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Term
| How many eggs are women born with |
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Definition
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Term
| How many eggs do women have by puberty |
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Definition
| about 400,000 primary oocytes |
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Term
| How many eggs are ovulatated over a woman's reproductive cycle |
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Definition
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Term
| What happens to the secondary oocyte if fertilied |
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Definition
| it completes meiosis 2 and forms an ovum and a polar body |
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Term
| What happens to the ovum during fertilization |
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Definition
| it fuses with the sperm and forms a zygote |
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