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23 Cards in this Set
- Front
- Back
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Each Primary spermatocyte subsequently undergoes ?
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a reduction division (the first meiotic division) to form two haploid secondary spermatocytes.
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Secondary spermatocytes undergo ?
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a second meiotic division to form four haploid spermatids.
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Spermatids are gradually transformed into four mature sperms by a differentiation process known as
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spermiogenesis.
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Sperms are transported to the
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epididymis, ductus deferens, and urethra.
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Sertoli cells?
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lining the seminiferous tubules support and nurture the germ cells, and may be involved in the regulation of spermatogenesis
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_______ is a primary inhibitor of LH secretion in males.
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Testosterone
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The mechanism of feedback control of FSH is regulated by a Sertoli cell product called ______.
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inhibin
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Erection is achieved by __________ induced vasodilation of arterioles that allows blood to flow into the ________ of the penis
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-parasympathetic nerve
-corpora cavernosa |
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Emission is controlled by _______
Ejuaculation is controlled by _________. |
emission = sympathetic.
ejaculation = sympathetic and parasympathetic |
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_______ cells secrete Testosterone
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Leydig
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During early fetal life, oogonia proliferate by mitotic division. Oogonia enlarge to form _______ before birth.
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primary oocytes
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The follicular cells surrounding the primary oocyte secrete_________, which keeps the meiotic process of the oocyte arrested
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oocyte maturation inhibitor (OMI)
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primary oocytes are arrested in?
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arrested in prophase of meiosis 1
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3-7 days = bleeding and shedding of endometrium; ________ increases after mensturation to repair endometrium
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estrogen
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After fertilization = reminence of folicular cell of ovary is converteed into ?
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coprus luteum, which produces progesterone – prepares endometrium
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Corpus luteum degenerates after ________ -> formation of _______ begins and takes over progesterone
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-first trimester of pregnancy
-placenta |
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used as positive sign of pregnancy
it maintains the corpus luteum |
Human chorionic gonadotropin
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Pseudohermaphroditism or psuedo-hermaphroditism?
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Klinefelter syndrome (XXY)
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If the oocyte is not fertilized corpus luteum begins to degenerate about 10 to 12 days after ovulation. It is transformed into white scar tissue in the ovary called a?
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corpus albicans
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Enzymes of sperm head desolve the 2 oval layers ______ and _______ then nucleus of sperm fuses to oval membrane and zygote forms
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corona radiata
zona pellucida |
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_________ effects internal ear = newborn deafness
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Rubella virus
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Uterine contractions are known to be stimulated by two agents:
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Oxytocin
prostaglandins (PGF2alpha, PGE2) |
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What prostaglandins can be used to dilate cervix for help with delivery?
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PGF2alpha, PGE2
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